For wxMSW, split XPM handler into separate file (please add handler explicitly in app);

doc changes espec. wxBitmap overview


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1416 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/png/pngdemo.cpp

@@ -22,6 +22,7 @@
 
 #ifdef __WXMSW__
 #include <wx/pnghand.h>
+// #include <wx/xpmhand.h>
 #endif
 
 #include "pngdemo.h"
@@ -39,6 +40,8 @@ bool MyApp::OnInit(void)
 {
 #ifdef __WXMSW__
   wxBitmap::AddHandler(new wxPNGFileHandler);
+//  wxBitmap::AddHandler(new wxXPMFileHandler);
+//  wxBitmap::AddHandler(new wxXPMDataHandler);
 #endif
 
   // Create the main frame window