Added context-sensitive help docs

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8497 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/helpprov.tex

@@ -0,0 +1,74 @@
+\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{See also}
+
+\helpref{wxHelpContext}{wxhelpcontext}, \helpref{wxHelpContextButton}{wxhelpcontextbutton}, 
+\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.
+
+\membersection{wxHelpProvider::AddHelp}\label{wxhelpprovideraddhelp}
+
+\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.
+