Applied patch [ 824244 ] wxMSW event loop fix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@24733 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/window.cpp

@@ -53,6 +53,8 @@
     #include "wx/ownerdrw.h"
 #endif
 
+#include "wx/module.h"
+
 #if wxUSE_DRAG_AND_DROP
     #include "wx/dnd.h"
 #endif
@@ -5683,3 +5685,54 @@ bool wxWindowMSW::HandleHotKey(WXWPARAM wParam, WXLPARAM lParam)
 
 #endif // wxUSE_HOTKEY
 
+// Not verified for WinCE
+#ifndef __WXWINCE__
+/*
+ *	wxEventFixModule (needs a better name) allows message handling to continute while a menu
+ *  is being shown - ie, to continue processing messages from a worker thread.
+ * 
+ *  Code originally by Jason W. from wx-dev, reworked into a wxModule by Chris Mellon
+ */
+
+class wxEventFixModule : public wxModule {
+public:
+	//base class virtuals
+	virtual bool OnInit() {
+		wxEventFixModule::s_hMsgHookProc = SetWindowsHookEx(
+			WH_GETMESSAGE,
+			&wxEventFixModule::MsgHookProc,
+			NULL,
+			GetCurrentThreadId());
+			wxLogDebug(_T("Loaded event fix module"));
+			return true;
+	};
+	virtual void OnExit() {
+		UnhookWindowsHookEx(wxEventFixModule::s_hMsgHookProc);
+
+	};
+	static LRESULT CALLBACK MsgHookProc(int nCode, WPARAM wParam, LPARAM lParam) {
+		MSG *msg = (MSG*)lParam;
+		switch (msg->message)
+		{
+        case WM_NULL:
+            static bool bInHookProc = false;
+            if (!bInHookProc)
+            {
+                bInHookProc = true;
+                wxTheApp->ProcessPendingEvents();
+                bInHookProc = false;
+            }
+            break;
+		}
+		return CallNextHookEx(wxEventFixModule::s_hMsgHookProc, nCode, wParam, lParam);
+	};
+private:
+	static HHOOK s_hMsgHookProc;
+DECLARE_DYNAMIC_CLASS(wxEventFixModule)
+};
+HHOOK wxEventFixModule::s_hMsgHookProc = 0;
+
+IMPLEMENT_DYNAMIC_CLASS(wxEventFixModule, wxModule)
+#endif
+    // __WXWINCE__
+