wxWidgets/docs/latex/wx/helpprov.tex

\section{\class{wxHelpProvider}}\label{wxhelpprovider}

wxHelpProvider is an abstract class used by a program implementing context-sensitive help to
show the help text for the given window.

The current help provider must be explicitly set by the application using
wxHelpProvider::Set().

\wxheading{Derived from}

No base class

\wxheading{Include files}

<wx/cshelp.h>

\wxheading{See also}

\helpref{wxContextHelp}{wxcontexthelp}, \helpref{wxContextHelpButton}{wxcontexthelpbutton}, 
\helpref{wxSimpleHelpProvider}{wxsimplehelpprovider}, \helpref{wxHelpControllerHelpProvider}{wxhelpcontrollerhelpprovider}, 
\helpref{wxWindow::SetHelpText}{wxwindowsethelptext}, \helpref{wxWindow::GetHelpText}{wxwindowgethelptext}

\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxHelpProvider::\destruct{wxHelpProvider}}\label{wxhelpproviderdtor}

\func{}{\destruct{wxHelpProvider}}{\void}

Virtual destructor for any base class.

\membersection{wxHelpProvider::Set}\label{wxhelpproviderset}

\func{wxHelpProvider*}{Set}{\param{wxHelpProvider* }{helpProvider}}

Get/set the current, application-wide help provider. Returns
the previous one.

\membersection{wxHelpProvider::Get}\label{wxhelpproviderget}

\func{wxHelpProvider*}{Get}{\void}

Unlike some other classes, the help provider is not created on demand.
This must be explicitly done by the application.

\membersection{wxHelpProvider::GetHelp}\label{wxhelpprovidergethelp}

\func{wxString}{GetHelp}{\param{const wxWindowBase* }{window}}

Gets the help string for this window. Its interpretation is dependent on the help provider
except that empty string always means that no help is associated with
the window.

\membersection{wxHelpProvider::ShowHelp}\label{wxhelpprovidershowhelp}

\func{bool}{ShowHelp}{\param{wxWindowBase* }{window}}

Shows help for the given window. Uses \helpref{GetHelp}{wxhelpprovidergethelp} internally if
applicable.

Returns TRUE if it was done, or FALSE if no help was available
for this window.

\membersection{wxHelpProvider::AddHelp}\label{wxhelpprovideraddhelp}

\func{void}{AddHelp}{\param{wxWindowBase* }{window}, \param{const wxString\& }{text}}

Associates the text with the given window or id. Although all help
providers have these functions to allow making \helpref{wxWindow::SetHelpText}{wxwindowsethelptext} 
work, not all of them implement the functions.

\func{void}{AddHelp}{\param{wxWindowID }{id}, \param{const wxString\& }{text}}

This version associates the given text with all windows with this id.
May be used to set the same help string for all Cancel buttons in
the application, for example.