+ else if (bitmap.GetMask())
+ hBitmap2 = (HBITMAP) bitmap.GetMask()->GetMaskBitmap();
+
+ HBITMAP hBitmapI=0;
+ if(hBitmap2!=0) {
+ // Microsoft imagelist masks are inverted from wxWindows mask standard (white is mask color)
+ BITMAP bm;
+ ::GetObject(hBitmap2,sizeof(BITMAP),(LPVOID)&bm);
+ int w=bm.bmWidth;
+ int h=bm.bmHeight;
+ HDC hdc = ::CreateCompatibleDC(NULL);
+ HDC hdci = ::CreateCompatibleDC(NULL);
+ hBitmapI = ::CreateCompatibleBitmap(hdci, w, h);
+ ::SelectObject(hdc, hBitmap2);
+ ::SelectObject(hdci, hBitmapI);
+ ::BitBlt(hdci, 0, 0, w, h, hdc, 0, 0, NOTSRCCOPY);
+ ::DeleteDC(hdc);
+ ::DeleteDC(hdci);
+ }
+
+ int index = ImageList_Add((HIMAGELIST) GetHIMAGELIST(), hBitmap1, hBitmapI);
+ if ( index == -1 )
+ {
+ wxLogError(_("Couldn't add an image to the image list."));
+ }
+
+ // Clean up inverted mask
+ if(hBitmapI!=0)
+ ::DeleteObject(hBitmapI);
+
+ return index;