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ROP 0x00AA0029 used for transparent area in DrawBitmap and Blit

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5946 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Guillermo Rodriguez Garcia 2000-02-10 06:54:50 +00:00
parent 105521d118
commit 8fcae2d6ed
1 changed files with 4 additions and 2 deletions
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6
src/msw/dc.cpp
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@ -688,7 +688,7 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
bool ok = ::MaskBlt(GetHdc(), x, y, width, height,
hdcMem, 0, 0,
hbmpMask, 0, 0,
MAKEROP4(SRCCOPY, SRCPAINT)) != 0;
MAKEROP4(SRCCOPY, 0x00AA0029)) != 0;
::DeleteDC(hdcMem);
if ( !ok )
@ -697,6 +697,8 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
// VZ: this is incorrect, Blit() doesn't (and can't) draw
// transparently, but it's still better than nothing at all
// GRG: Blit() *should* draw transparently when there is a mask.
// Rather than reproduce wxDC::Blit, let's do it at the wxWin API level
wxMemoryDC memDC;
memDC.SelectObject(bmp);
@ -1370,7 +1372,7 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
success = ::MaskBlt(GetHdc(), xdest, ydest, width, height,
GetHdcOf(*source), xsrc, ysrc,
hbmpMask, 0, 0,
MAKEROP4(PATCOPY, dwRop)) != 0;
MAKEROP4(0x00AA0029, dwRop)) != 0;
if ( hbrNew )
{