void
Canvas::invert_stretch_transparent(const Bitmap &src, Color key)
{
assert(IsDefined());
assert(src.IsDefined());
HDC virtual_dc = GetCompatibleDC();
HBITMAP old = (HBITMAP)::SelectObject(virtual_dc, src.GetNative());
const PixelSize size = src.GetSize();
BufferCanvas inverted(*this, size.cx, size.cy);
::BitBlt(inverted, 0, 0, size.cx, size.cy,
virtual_dc, 0, 0, NOTSRCCOPY);
::SelectObject(virtual_dc, old);
#ifdef _WIN32_WCE
::TransparentImage(dc, 0, 0, get_width(), get_height(),
inverted, 0, 0, size.cx, size.cy,
key);
#else
::TransparentBlt(dc, 0, 0, get_width(), get_height(),
inverted, 0, 0, size.cx, size.cy,
key);
#endif
}
void
Canvas::Copy(int dest_x, int dest_y,
unsigned dest_width, unsigned dest_height,
HBITMAP src, int src_x, int src_y,
DWORD dwRop)
{
assert(IsDefined());
assert(src != nullptr);
HDC virtual_dc = GetCompatibleDC();
HBITMAP old = (HBITMAP)::SelectObject(virtual_dc, src);
Copy(dest_x, dest_y, dest_width, dest_height,
virtual_dc, src_x, src_y,
dwRop);
::SelectObject(virtual_dc, old);
}
void
Canvas::copy(PixelScalar dest_x, PixelScalar dest_y,
UPixelScalar dest_width, UPixelScalar dest_height,
HBITMAP src, PixelScalar src_x, PixelScalar src_y,
DWORD dwRop)
{
assert(IsDefined());
assert(src != NULL);
HDC virtual_dc = GetCompatibleDC();
HBITMAP old = (HBITMAP)::SelectObject(virtual_dc, src);
copy(dest_x, dest_y, dest_width, dest_height,
virtual_dc, src_x, src_y,
dwRop);
::SelectObject(virtual_dc, old);
}