Disable creation of wxDIB from wxBitmap in non-wxMSW ports.

wxDIB can now be used with wxGTK under Windows, i.e. when not using wxMSW
version of wxBitmap but it can't be created from wxBitmap then as it doesn't
have a corresponding HBITMAP.

Simply disable this functionality when not using wxMSW.

Closes #14414.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71798 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/dib.h

@@ -37,9 +37,11 @@ public:
     wxDIB(int width, int height, int depth)
         { Init(); (void)Create(width, height, depth); }
 
+#ifdef __WXMSW__
     // create a DIB from the DDB
     wxDIB(const wxBitmap& bmp)
         { Init(); (void)Create(bmp); }
+#endif // __WXMSW__
 
     // create a DIB from the Windows DDB
     wxDIB(HBITMAP hbmp)
@@ -53,7 +55,9 @@ public:
 
     // same as the corresponding ctors but with return value
     bool Create(int width, int height, int depth);
+#ifdef __WXMSW__
     bool Create(const wxBitmap& bmp) { return Create(GetHbitmapOf(bmp)); }
+#endif
     bool Create(HBITMAP hbmp);
     bool Load(const wxString& filename);
 

src/msw/dib.cpp

@@ -575,7 +575,7 @@ HGLOBAL wxDIB::ConvertFromBitmap(HBITMAP hbmp)
 wxPalette *wxDIB::CreatePalette() const
 {
     // GetDIBColorTable not available in eVC3
-#if defined(_WIN32_WCE) && _WIN32_WCE < 400
+#if !defined(__WXMSW__) || defined(_WIN32_WCE) && _WIN32_WCE < 400
     return NULL;
 #else
     wxCHECK_MSG( m_handle, NULL, wxT("wxDIB::CreatePalette(): invalid object") );