use PALETTERGB instead of RGB when creating wxMask from colour
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14830 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@ -1265,7 +1265,7 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
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// scan the bitmap for the transparent colour and set the corresponding
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// pixels in the mask to BLACK and the rest to WHITE
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COLORREF maskColour = RGB(colour.Red(), colour.Green(), colour.Blue());
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COLORREF maskColour = wxColourToPalRGB(colour);
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m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0);
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HDC srcDC = ::CreateCompatibleDC(NULL);
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