//
/// Creates a bitmap object for the given device context with the given dib and
/// usage argument values.
//
TBitmap::TBitmap(const TDC& dc, const TDib& dib, uint32 usage)
{
Handle = ::CreateDIBitmap(dc,
(BITMAPINFOHEADER *)dib.GetInfoHeader(),
usage, (const uint8 *)dib.GetBits(),
(BITMAPINFO *)dib.GetInfo(),
dib.Usage());
// API casts
WARNX(OwlGDI, !Handle, 0, "Cannot create bitmap from DIB " << hex <<
(uint)(HANDLE)dib << " for " << (uint)(HDC)dc);
CheckValid();
RefAdd(Handle, Bitmap);
TRACEX(OwlGDI, OWL_CDLEVEL, "TBitmap constructed @" << (void*)this <<
" from DIB for " << (uint)(HDC)dc << ".");
}
//
/// Create a bitmap & get its handle, given a dib and a palette
/// Used by ctors here and in derived classes. Assumes Handle member can be
/// over written, & adds handle to reference container.
//
void
TBitmap::Create(const TDib& dib, const TPalette& palette)
{
TScreenDC dc;
dc.SelectObject(palette, false);
dc.RealizePalette();
Handle = ::CreateDIBitmap(
dc,
(LPBITMAPINFOHEADER)dib.GetInfoHeader(),
CBM_INIT,
(const uint8 *)dib.GetBits(),
(LPBITMAPINFO)dib.GetInfo(),
dib.Usage()
); // API type casts
CheckValid();
RefAdd(Handle, Bitmap);
}