added wxUSE_PALETTE and fixed compilation with it set to 0

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11749 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/gdiimage.cpp

@@ -355,6 +355,8 @@ bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap,
 #if wxUSE_IMAGE_LOADING_IN_MSW
     wxPalette *palette = NULL;
     bool success = wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0;
+
+#if wxUSE_PALETTE
     if ( success && palette )
     {
         bitmap->SetPalette(*palette);
@@ -362,6 +364,7 @@ bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap,
 
     // it was copied by the bitmap if it was loaded successfully
     delete palette;
+#endif // wxUSE_PALETTE
 
     return success;
 #else
@@ -375,9 +378,15 @@ bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap,
                                 const wxPalette *pal)
 {
 #if wxUSE_IMAGE_LOADING_IN_MSW
+
+#if wxUSE_PALETTE
     wxPalette *actualPalette = (wxPalette *)pal;
     if ( !actualPalette )
         actualPalette = bitmap->GetPalette();
+#else
+    wxPalette *actualPalette = NULL;
+#endif // wxUSE_PALETTE
+
     return wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0;
 #else
     return FALSE;