0c03f52d02
These functions were confusingly named as they work with MSW (virtual) key codes and not character codes, rename them to better indicate what they do. They also don't need to be in wx/msw/window.h included by all wx code when they are only really needed in a couple of files, so move them to a private header. No changes in behaviour. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65523 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
662 lines
25 KiB
C++
662 lines
25 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/window.h
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// Purpose: wxWindowMSW class
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// Author: Julian Smart
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// Modified by: Vadim Zeitlin on 13.05.99: complete refont of message handling,
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// elimination of Default(), ...
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_WINDOW_H_
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#define _WX_WINDOW_H_
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#include "wx/settings.h" // solely for wxSystemColour
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// if this is set to 1, we use deferred window sizing to reduce flicker when
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// resizing complicated window hierarchies, but this can in theory result in
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// different behaviour than the old code so we keep the possibility to use it
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// by setting this to 0 (in the future this should be removed completely)
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#ifdef __WXWINCE__
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#define wxUSE_DEFERRED_SIZING 0
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#else
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#define wxUSE_DEFERRED_SIZING 1
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#endif
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// ---------------------------------------------------------------------------
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// wxWindow declaration for MSW
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// ---------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxWindowMSW : public wxWindowBase
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{
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friend class wxSpinCtrl;
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friend class wxSlider;
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friend class wxRadioBox;
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#if defined __VISUALC__ && __VISUALC__ <= 1200
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friend class wxWindowMSW;
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#endif
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public:
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wxWindowMSW() { Init(); }
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wxWindowMSW(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxString& name = wxPanelNameStr)
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{
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Init();
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Create(parent, id, pos, size, style, name);
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}
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virtual ~wxWindowMSW();
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bool Create(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxString& name = wxPanelNameStr);
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// implement base class pure virtuals
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virtual void SetLabel(const wxString& label);
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virtual wxString GetLabel() const;
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virtual void Raise();
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virtual void Lower();
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virtual bool Show(bool show = true);
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virtual bool ShowWithEffect(wxShowEffect effect,
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unsigned timeout = 0)
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{
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return MSWShowWithEffect(true, effect, timeout);
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}
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virtual bool HideWithEffect(wxShowEffect effect,
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unsigned timeout = 0)
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{
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return MSWShowWithEffect(false, effect, timeout);
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}
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virtual void SetFocus();
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virtual void SetFocusFromKbd();
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virtual bool Reparent(wxWindowBase *newParent);
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virtual void WarpPointer(int x, int y);
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virtual void Refresh( bool eraseBackground = true,
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const wxRect *rect = (const wxRect *) NULL );
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virtual void Update();
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virtual void SetWindowStyleFlag(long style);
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virtual void SetExtraStyle(long exStyle);
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virtual bool SetCursor( const wxCursor &cursor );
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virtual bool SetFont( const wxFont &font );
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virtual int GetCharHeight() const;
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virtual int GetCharWidth() const;
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virtual void SetScrollbar( int orient, int pos, int thumbVisible,
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int range, bool refresh = true );
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virtual void SetScrollPos( int orient, int pos, bool refresh = true );
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virtual int GetScrollPos( int orient ) const;
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virtual int GetScrollThumb( int orient ) const;
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virtual int GetScrollRange( int orient ) const;
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virtual void ScrollWindow( int dx, int dy,
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const wxRect* rect = NULL );
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virtual bool ScrollLines(int lines);
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virtual bool ScrollPages(int pages);
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virtual void SetLayoutDirection(wxLayoutDirection dir);
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virtual wxLayoutDirection GetLayoutDirection() const;
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virtual wxCoord AdjustForLayoutDirection(wxCoord x,
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wxCoord width,
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wxCoord widthTotal) const;
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#if wxUSE_DRAG_AND_DROP
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virtual void SetDropTarget( wxDropTarget *dropTarget );
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#endif // wxUSE_DRAG_AND_DROP
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// Accept files for dragging
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virtual void DragAcceptFiles(bool accept);
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#ifndef __WXUNIVERSAL__
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// Native resource loading (implemented in src/msw/nativdlg.cpp)
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// FIXME: should they really be all virtual?
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virtual bool LoadNativeDialog(wxWindow* parent, wxWindowID& id);
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virtual bool LoadNativeDialog(wxWindow* parent, const wxString& name);
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wxWindow* GetWindowChild1(wxWindowID id);
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wxWindow* GetWindowChild(wxWindowID id);
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#endif // __WXUNIVERSAL__
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#if wxUSE_HOTKEY
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// install and deinstall a system wide hotkey
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virtual bool RegisterHotKey(int hotkeyId, int modifiers, int keycode);
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virtual bool UnregisterHotKey(int hotkeyId);
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#endif // wxUSE_HOTKEY
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#ifdef __POCKETPC__
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bool IsContextMenuEnabled() const { return m_contextMenuEnabled; }
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void EnableContextMenu(bool enable = true) { m_contextMenuEnabled = enable; }
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#endif
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// window handle stuff
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// -------------------
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WXHWND GetHWND() const { return m_hWnd; }
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void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
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virtual WXWidget GetHandle() const { return GetHWND(); }
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void AssociateHandle(WXWidget handle);
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void DissociateHandle();
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// does this window have deferred position and/or size?
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bool IsSizeDeferred() const;
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// these functions allow to register a global handler for the given Windows
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// message: it will be called from MSWWindowProc() of any window which gets
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// this event if it's not processed before (i.e. unlike a hook procedure it
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// does not override the normal processing)
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//
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// notice that if you want to process a message for a given window only you
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// should override its MSWWindowProc() instead
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// type of the handler: it is called with the message parameters (except
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// that the window object is passed instead of window handle) and should
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// return true if it handled the message or false if it should be passed to
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// DefWindowProc()
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typedef bool (*MSWMessageHandler)(wxWindowMSW *win,
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WXUINT nMsg,
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WXWPARAM wParam,
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WXLPARAM lParam);
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// install a handler, shouldn't be called more than one for the same message
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static bool MSWRegisterMessageHandler(int msg, MSWMessageHandler handler);
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// unregister a previously registered handler
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static void MSWUnregisterMessageHandler(int msg, MSWMessageHandler handler);
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// implementation from now on
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// ==========================
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// event handlers
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// --------------
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void OnPaint(wxPaintEvent& event);
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#ifdef __WXWINCE__
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void OnInitDialog(wxInitDialogEvent& event);
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#endif
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public:
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// Windows subclassing
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void SubclassWin(WXHWND hWnd);
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void UnsubclassWin();
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WXFARPROC MSWGetOldWndProc() const { return m_oldWndProc; }
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void MSWSetOldWndProc(WXFARPROC proc) { m_oldWndProc = proc; }
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// return true if the window is of a standard (i.e. not wxWidgets') class
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//
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// to understand why does it work, look at SubclassWin() code and comments
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bool IsOfStandardClass() const { return m_oldWndProc != NULL; }
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wxWindow *FindItem(long id) const;
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wxWindow *FindItemByHWND(WXHWND hWnd, bool controlOnly = false) const;
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// MSW only: true if this control is part of the main control
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virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return false; }
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#if wxUSE_TOOLTIPS
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// MSW only: true if this window or any of its children have a tooltip
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virtual bool HasToolTips() const { return GetToolTip() != NULL; }
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#endif // wxUSE_TOOLTIPS
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// translate wxWidgets style flags for this control into the Windows style
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// and optional extended style for the corresponding native control
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//
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// this is the function that should be overridden in the derived classes,
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// but you will mostly use MSWGetCreateWindowFlags() below
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virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = NULL) const ;
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// get the MSW window flags corresponding to wxWidgets ones
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//
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// the functions returns the flags (WS_XXX) directly and puts the ext
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// (WS_EX_XXX) flags into the provided pointer if not NULL
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WXDWORD MSWGetCreateWindowFlags(WXDWORD *exflags = NULL) const
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{ return MSWGetStyle(GetWindowStyle(), exflags); }
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// update the real underlying window style flags to correspond to the
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// current wxWindow object style (safe to call even if window isn't fully
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// created yet)
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void MSWUpdateStyle(long flagsOld, long exflagsOld);
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// get the HWND to be used as parent of this window with CreateWindow()
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virtual WXHWND MSWGetParent() const;
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// get the Win32 window class name used by all wxWindow objects by default
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static const wxChar *MSWGetRegisteredClassName();
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// creates the window of specified Windows class with given style, extended
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// style, title and geometry (default values
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//
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// returns true if the window has been created, false if creation failed
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bool MSWCreate(const wxChar *wclass,
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const wxChar *title = NULL,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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WXDWORD style = 0,
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WXDWORD exendedStyle = 0);
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virtual bool MSWCommand(WXUINT param, WXWORD id);
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#ifndef __WXUNIVERSAL__
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// Create an appropriate wxWindow from a HWND
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virtual wxWindow* CreateWindowFromHWND(wxWindow* parent, WXHWND hWnd);
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// Make sure the window style reflects the HWND style (roughly)
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virtual void AdoptAttributesFromHWND();
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#endif // __WXUNIVERSAL__
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// Setup background and foreground colours correctly
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virtual void SetupColours();
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// ------------------------------------------------------------------------
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// helpers for message handlers: these perform the same function as the
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// message crackers from <windowsx.h> - they unpack WPARAM and LPARAM into
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// the correct parameters
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// ------------------------------------------------------------------------
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void UnpackCommand(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *id, WXHWND *hwnd, WXWORD *cmd);
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void UnpackActivate(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *state, WXWORD *minimized, WXHWND *hwnd);
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void UnpackScroll(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *code, WXWORD *pos, WXHWND *hwnd);
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void UnpackCtlColor(WXWPARAM wParam, WXLPARAM lParam,
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WXHDC *hdc, WXHWND *hwnd);
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void UnpackMenuSelect(WXWPARAM wParam, WXLPARAM lParam,
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WXWORD *item, WXWORD *flags, WXHMENU *hmenu);
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// ------------------------------------------------------------------------
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// internal handlers for MSW messages: all handlers return a boolean value:
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// true means that the handler processed the event and false that it didn't
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// ------------------------------------------------------------------------
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// there are several cases where we have virtual functions for Windows
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// message processing: this is because these messages often require to be
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// processed in a different manner in the derived classes. For all other
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// messages, however, we do *not* have corresponding MSWOnXXX() function
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// and if the derived class wants to process them, it should override
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// MSWWindowProc() directly.
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// scroll event (both horizontal and vertical)
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virtual bool MSWOnScroll(int orientation, WXWORD nSBCode,
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WXWORD pos, WXHWND control);
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// child control notifications
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virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
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// owner-drawn controls need to process these messages
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virtual bool MSWOnDrawItem(int id, WXDRAWITEMSTRUCT *item);
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virtual bool MSWOnMeasureItem(int id, WXMEASUREITEMSTRUCT *item);
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// the rest are not virtual
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bool HandleCreate(WXLPCREATESTRUCT cs, bool *mayCreate);
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bool HandleInitDialog(WXHWND hWndFocus);
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bool HandleDestroy();
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bool HandlePaint();
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bool HandlePrintClient(WXHDC hDC);
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bool HandleEraseBkgnd(WXHDC hDC);
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bool HandleMinimize();
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bool HandleMaximize();
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bool HandleSize(int x, int y, WXUINT flag);
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bool HandleSizing(wxRect& rect);
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bool HandleGetMinMaxInfo(void *mmInfo);
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bool HandleEnterSizeMove();
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bool HandleExitSizeMove();
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bool HandleShow(bool show, int status);
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bool HandleActivate(int flag, bool minimized, WXHWND activate);
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bool HandleCommand(WXWORD id, WXWORD cmd, WXHWND control);
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bool HandleCtlColor(WXHBRUSH *hBrush, WXHDC hdc, WXHWND hWnd);
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bool HandlePaletteChanged(WXHWND hWndPalChange);
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bool HandleQueryNewPalette();
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bool HandleSysColorChange();
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bool HandleDisplayChange();
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bool HandleCaptureChanged(WXHWND gainedCapture);
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virtual bool HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam);
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bool HandleQueryEndSession(long logOff, bool *mayEnd);
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bool HandleEndSession(bool endSession, long logOff);
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bool HandleSetFocus(WXHWND wnd);
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bool HandleKillFocus(WXHWND wnd);
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bool HandleDropFiles(WXWPARAM wParam);
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bool HandleMouseEvent(WXUINT msg, int x, int y, WXUINT flags);
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bool HandleMouseMove(int x, int y, WXUINT flags);
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bool HandleMouseWheel(WXWPARAM wParam, WXLPARAM lParam);
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bool HandleChar(WXWPARAM wParam, WXLPARAM lParam);
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bool HandleKeyDown(WXWPARAM wParam, WXLPARAM lParam);
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bool HandleKeyUp(WXWPARAM wParam, WXLPARAM lParam);
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#if wxUSE_ACCEL
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bool HandleHotKey(WXWPARAM wParam, WXLPARAM lParam);
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#endif
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#ifdef __WIN32__
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int HandleMenuChar(int chAccel, WXLPARAM lParam);
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#endif
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// Create and process a clipboard event specified by type.
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bool HandleClipboardEvent( WXUINT nMsg );
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bool HandleQueryDragIcon(WXHICON *hIcon);
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bool HandleSetCursor(WXHWND hWnd, short nHitTest, int mouseMsg);
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bool HandlePower(WXWPARAM wParam, WXLPARAM lParam, bool *vetoed);
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// Window procedure
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virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
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// Calls an appropriate default window procedure
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virtual WXLRESULT MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
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// message processing helpers
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// return false if the message shouldn't be translated/preprocessed but
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// dispatched normally
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virtual bool MSWShouldPreProcessMessage(WXMSG* pMsg);
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// return true if the message was preprocessed and shouldn't be dispatched
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virtual bool MSWProcessMessage(WXMSG* pMsg);
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// return true if the message was translated and shouldn't be dispatched
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virtual bool MSWTranslateMessage(WXMSG* pMsg);
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// called when the window is about to be destroyed
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virtual void MSWDestroyWindow();
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// this function should return the brush to paint the children controls
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// background or 0 if this window doesn't impose any particular background
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// on its children
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//
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// the hDC parameter is the DC background will be drawn on, it can be used
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// to call SetBrushOrgEx() on it if the returned brush is a bitmap one
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//
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// child parameter is never NULL, it can be this window itself or one of
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// its (grand)children
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//
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// the base class version returns a solid brush if we have a non default
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// background colour or 0 otherwise
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virtual WXHBRUSH MSWGetBgBrushForChild(WXHDC hDC, wxWindowMSW *child);
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// return the background brush to use for painting the given window by
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// querying the parent windows via MSWGetBgBrushForChild() recursively
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WXHBRUSH MSWGetBgBrush(WXHDC hDC);
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enum MSWThemeColour
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{
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ThemeColourText = 0,
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ThemeColourBackground,
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ThemeColourBorder
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};
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// returns a specific theme colour, or if that is not possible then
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// wxSystemSettings::GetColour(fallback)
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wxColour MSWGetThemeColour(const wchar_t *themeName,
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int themePart,
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int themeState,
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MSWThemeColour themeColour,
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wxSystemColour fallback) const;
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// gives the parent the possibility to draw its children background, e.g.
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// this is used by wxNotebook to do it using DrawThemeBackground()
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//
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// return true if background was drawn, false otherwise
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virtual bool MSWPrintChild(WXHDC WXUNUSED(hDC), wxWindow * WXUNUSED(child))
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{
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return false;
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}
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// some controls (e.g. wxListBox) need to set the return value themselves
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//
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// return true to let parent handle it if we don't, false otherwise
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virtual bool MSWShouldPropagatePrintChild()
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{
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return true;
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}
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// This should be overridden to return true for the controls which have
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// themed background that should through their children. Currently only
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// wxNotebook uses this.
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virtual bool MSWHasInheritableBackground() const { return false; }
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#if !defined(__WXWINCE__) && !defined(__WXUNIVERSAL__)
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#define wxHAS_MSW_BACKGROUND_ERASE_HOOK
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#endif
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#ifdef wxHAS_MSW_BACKGROUND_ERASE_HOOK
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// allows the child to hook into its parent WM_ERASEBKGND processing: call
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// MSWSetEraseBgHook() with a non-NULL window to make parent call
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// MSWEraseBgHook() on this window (don't forget to reset it to NULL
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// afterwards)
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//
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// this hack is used by wxToolBar, see comments there
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void MSWSetEraseBgHook(wxWindow *child);
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// return true if WM_ERASEBKGND is currently hooked
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bool MSWHasEraseBgHook() const;
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// called when the window on which MSWSetEraseBgHook() had been called
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// receives WM_ERASEBKGND
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virtual bool MSWEraseBgHook(WXHDC WXUNUSED(hDC)) { return false; }
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#endif // wxHAS_MSW_BACKGROUND_ERASE_HOOK
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// common part of Show/HideWithEffect()
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bool MSWShowWithEffect(bool show,
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wxShowEffect effect,
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unsigned timeout);
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// Responds to colour changes: passes event on to children.
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void OnSysColourChanged(wxSysColourChangedEvent& event);
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// initialize various fields of wxMouseEvent (common part of MSWOnMouseXXX)
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void InitMouseEvent(wxMouseEvent& event, int x, int y, WXUINT flags);
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// check if mouse is in the window
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bool IsMouseInWindow() const;
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// check if a native double-buffering applies for this window
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virtual bool IsDoubleBuffered() const;
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void SetDoubleBuffered(bool on);
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// synthesize a wxEVT_LEAVE_WINDOW event and set m_mouseInWindow to false
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void GenerateMouseLeave();
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// virtual function for implementing internal idle
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// behaviour
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virtual void OnInternalIdle();
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protected:
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// this allows you to implement standard control borders without
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// repeating the code in different classes that are not derived from
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// wxControl
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virtual wxBorder GetDefaultBorderForControl() const;
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// choose the default border for this window
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virtual wxBorder GetDefaultBorder() const;
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// Translate wxBORDER_THEME (and other border styles if necessary to the value
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// that makes most sense for this Windows environment
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virtual wxBorder TranslateBorder(wxBorder border) const;
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#if wxUSE_MENUS_NATIVE
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virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
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#endif // wxUSE_MENUS_NATIVE
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// the window handle
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WXHWND m_hWnd;
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// the old window proc (we subclass all windows)
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WXFARPROC m_oldWndProc;
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// additional (MSW specific) flags
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bool m_mouseInWindow:1;
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bool m_lastKeydownProcessed:1;
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// the size of one page for scrolling
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int m_xThumbSize;
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int m_yThumbSize;
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// implement the base class pure virtuals
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virtual void DoGetTextExtent(const wxString& string,
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int *x, int *y,
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int *descent = NULL,
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int *externalLeading = NULL,
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const wxFont *font = NULL) const;
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virtual void DoClientToScreen( int *x, int *y ) const;
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virtual void DoScreenToClient( int *x, int *y ) const;
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virtual void DoGetPosition( int *x, int *y ) const;
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virtual void DoGetSize( int *width, int *height ) const;
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virtual void DoGetClientSize( int *width, int *height ) const;
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virtual void DoSetSize(int x, int y,
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int width, int height,
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int sizeFlags = wxSIZE_AUTO);
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virtual void DoSetClientSize(int width, int height);
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virtual wxSize DoGetBorderSize() const;
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virtual void DoCaptureMouse();
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virtual void DoReleaseMouse();
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virtual void DoEnable(bool enable);
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virtual void DoFreeze();
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virtual void DoThaw();
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// this simply moves/resizes the given HWND which is supposed to be our
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// sibling (this is useful for controls which are composite at MSW level
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// and for which DoMoveWindow() is not enough)
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//
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// returns true if the window move was deferred, false if it was moved
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// immediately (no error return)
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bool DoMoveSibling(WXHWND hwnd, int x, int y, int width, int height);
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// move the window to the specified location and resize it: this is called
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// from both DoSetSize() and DoSetClientSize() and would usually just call
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// ::MoveWindow() except for composite controls which will want to arrange
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// themselves inside the given rectangle
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virtual void DoMoveWindow(int x, int y, int width, int height);
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#if wxUSE_TOOLTIPS
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virtual void DoSetToolTip( wxToolTip *tip );
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// process TTN_NEEDTEXT message properly (i.e. fixing the bugs in
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// comctl32.dll in our code -- see the function body for more info)
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bool HandleTooltipNotify(WXUINT code,
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WXLPARAM lParam,
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const wxString& ttip);
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#endif // wxUSE_TOOLTIPS
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// This is used by CreateKeyEvent() and also for wxEVT_CHAR[_HOOK] event
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// creation. Notice that this method doesn't initialize wxKeyEvent
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// m_keyCode and m_uniChar fields.
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void InitAnyKeyEvent(wxKeyEvent& event,
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WXWPARAM wParam,
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WXLPARAM lParam) const;
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// Helper functions used by HandleKeyXXX() methods and some derived
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// classes, wParam and lParam have the same meaning as in WM_KEY{DOWN,UP}.
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//
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// NB: evType here must be wxEVT_KEY_{DOWN,UP} as wParam here contains the
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// virtual key code, not character!
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wxKeyEvent CreateKeyEvent(wxEventType evType,
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WXWPARAM wParam,
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WXLPARAM lParam = 0) const;
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// default OnEraseBackground() implementation, return true if we did erase
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// the background, false otherwise (i.e. the system should erase it)
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bool DoEraseBackground(WXHDC hDC);
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// generate WM_CHANGEUISTATE if it's needed for the OS we're running under
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//
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// action should be one of the UIS_XXX constants
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// state should be one or more of the UISF_XXX constants
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// if action == UIS_INITIALIZE then it doesn't seem to matter what we use
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// for state as the system will decide for us what needs to be set
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void MSWUpdateUIState(int action, int state = 0);
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// translate wxWidgets coords into Windows ones suitable to be passed to
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// ::CreateWindow(), called from MSWCreate()
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virtual void MSWGetCreateWindowCoords(const wxPoint& pos,
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const wxSize& size,
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int& x, int& y,
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int& w, int& h) const;
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bool MSWEnableHWND(WXHWND hWnd, bool enable);
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private:
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// common part of all ctors
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void Init();
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// the (non-virtual) handlers for the events
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bool HandleMove(int x, int y);
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bool HandleMoving(wxRect& rect);
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bool HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags);
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bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
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#if wxUSE_DEFERRED_SIZING
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protected:
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// this function is called after the window was resized to its new size
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virtual void MSWEndDeferWindowPos()
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{
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m_pendingPosition = wxDefaultPosition;
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m_pendingSize = wxDefaultSize;
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}
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// current defer window position operation handle (may be NULL)
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WXHANDLE m_hDWP;
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// When deferred positioning is done these hold the pending changes, and
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// are used for the default values if another size/pos changes is done on
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// this window before the group of deferred changes is completed.
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wxPoint m_pendingPosition;
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wxSize m_pendingSize;
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#endif // wxUSE_DEFERRED_SIZING
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private:
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#ifdef __POCKETPC__
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bool m_contextMenuEnabled;
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#endif
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DECLARE_DYNAMIC_CLASS(wxWindowMSW)
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wxDECLARE_NO_COPY_CLASS(wxWindowMSW);
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DECLARE_EVENT_TABLE()
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};
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// window creation helper class: before creating a new HWND, instantiate an
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// object of this class on stack - this allows to process the messages sent to
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// the window even before CreateWindow() returns
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class wxWindowCreationHook
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{
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public:
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wxWindowCreationHook(wxWindowMSW *winBeingCreated);
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~wxWindowCreationHook();
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};
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#endif // _WX_WINDOW_H_
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