implemented 'shaft scrolling' of children in wxUnivWindow::ScrollWindow

[wxWidgets.git] / samples / png / pngdemo.cpp

diff --git a/samples/png/pngdemo.cpp b/samples/png/pngdemo.cpp
index 8cc344029f3118f845397b061562e6f30c59a87d..0d88f11699226c48808d27b709e503b60085f0a7 100644 (file)
--- a/samples/png/pngdemo.cpp
+++ b/samples/png/pngdemo.cpp
@@ -20,9 +20,7 @@
 #pragma hdrstop
 #endif
 
-#ifdef __WXMSW__
-#include <wx/pnghand.h>
-#endif
+#include "wx/image.h"
 
 #include "pngdemo.h"
 
@@ -37,9 +35,7 @@ MyApp::MyApp()
 
 bool MyApp::OnInit(void)
 {
-#ifdef __WXMSW__
-  wxBitmap::AddHandler(new wxPNGFileHandler);
-#endif
+  wxImage::AddHandler(new wxPNGHandler);
 
   // Create the main frame window
   frame = new MyFrame((wxFrame *) NULL, "wxPNGBitmap Demo", wxPoint(0, 0), wxSize(300, 300));
@@ -104,10 +100,11 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnSaveFile(wxCommandEvent& WXUNUSED(event))
 {
-  char *f = wxFileSelector( "Save Image", (const char *)NULL, (const char *)NULL, 
-                            "png", "PNG files (*.png)|*.png" );
+  wxString f = wxFileSelector( wxT("Save Image"), (const wxChar *)NULL,
+                               (const wxChar *)NULL,
+                               wxT("png"), wxT("PNG files (*.png)|*.png") );
 
-  if (!f)  return;
+  if (f == "")  return;
   
   wxBitmap *backstore = new wxBitmap( 150, 150 );
   
@@ -132,10 +129,11 @@ void MyFrame::OnSaveFile(wxCommandEvent& WXUNUSED(event))
 void MyFrame::OnLoadFile(wxCommandEvent& WXUNUSED(event))
 {
        // Show file selector.
-       char *f = wxFileSelector("Open Image", (const char *) NULL, (const char *) NULL,"png",
-                 "PNG files (*.png)|*.png");
+       wxString f = wxFileSelector(wxT("Open Image"), (const wxChar *) NULL,
+                                    (const wxChar *) NULL, wxT("png"),
+                                    wxT("PNG files (*.png)|*.png"));
 
-       if (!f)
+       if (f == "")
          return;
 
     if ( g_TestBitmap )
@@ -204,12 +202,4 @@ void MyCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
   }
 }
 
-// Define the behaviour for the frame closing
-// - must delete all frames except for the main one.
-bool MyFrame::OnClose(void)
-{
-  Show(FALSE);
-
-  return TRUE;
-}