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Charles Hacker
Guest
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 Posted: Thu Aug 25, 2005 10:04 pm Post subject: Reduce Color Depth of Bitmap |
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Hi all,
I am looking to reduce the color/pixel depth of a bitmap for copying.
The standard
Clipboard.Assign(Bmap);
Seems to copy the full 32bit color image of the display, (Thus the
bitmaps become massive in memory size).
When I try to decrese the pixel depth, as below:
procedure TForm1.ButCopyClick(Sender: TObject);
VAR Bmap: TBitmap;
begin
Bmap:= GetFormImage;
BMap.PixelFormat:= pf16Bit;
Clipboard.Assign(Bmap);
Bmap.Free;
end;
However, the image stored to the clipboard is still in the massive 32bit
(pf32Bit) pixel format.
So I am wondering how to decrease the pixel depth, so only a small
memory (pf16bit) image is copied to the clipbrd.
Regards,
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Ronaldo Souza
Guest
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| Posted: Thu Aug 25, 2005 10:28 pm Post subject: Re: Reduce Color Depth of Bitmap |
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Charles,
Check yesterday's (well, that depends on where you are...  )thread
"Bitmap Compression Techniques".
HTH,
Ronaldo
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