X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f02b73c46c01a1ead8e0e692e305ae1cec183b0c..28be2e8a170979d476a5ea4f585505b8a2f5af27:/src/msw/icon.cpp

diff --git a/src/msw/icon.cpp b/src/msw/icon.cpp
index 03fe2ebb13..a7e1fcad9d 100644
--- a/src/msw/icon.cpp
+++ b/src/msw/icon.cpp
@@ -107,10 +107,26 @@ void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
     iconInfo.hbmMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
     iconInfo.hbmColor = GetHbitmapOf(bmp);
 
+    /* GRG: black out the transparent area to preserve background
+     * colour, because Windows blits the original bitmap using
+     * SRCINVERT (XOR) after applying the mask to the dest rect.
+     */
+    HDC dcSrc = ::CreateCompatibleDC(NULL);
+    HDC dcDst = ::CreateCompatibleDC(NULL);
+    SelectObject(dcSrc, (HBITMAP)mask->GetMaskBitmap());
+    SelectObject(dcDst, iconInfo.hbmColor);
+
+    BitBlt(dcDst, 0, 0, bmp.GetWidth(), bmp.GetHeight(), dcSrc, 0, 0, SRCAND);
+
+    SelectObject(dcDst, NULL);
+    SelectObject(dcSrc, NULL);
+    DeleteDC(dcDst);
+    DeleteDC(dcSrc);
+
     HICON hicon = ::CreateIconIndirect(&iconInfo);
     if ( !hicon )
     {
-        wxLogLastError("CreateIconIndirect");
+        wxLogLastError(wxT("CreateIconIndirect"));
     }
     else
     {
@@ -126,7 +142,16 @@ void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
 #else // Win16
     // there are some functions in curico.cpp which probably could be used
     // here...
-    wxFAIL_MSG("not implemented");
+    // This probably doesn't work.
+    HBITMAP hBitmap = (HBITMAP) bmp.GetHBITMAP();
+    HICON hIcon = MakeIconFromBitmap((HINSTANCE) wxGetInstance(), hBitmap);
+    if (hIcon)
+    {
+        SetHICON((WXHICON)hIcon);
+        SetSize(bmp.GetWidth(), bmp.GetHeight());
+    }
+
+//    wxFAIL_MSG("Bitmap to icon conversion (including use of XPMs for icons) not implemented");
 #endif // Win32/16
 }