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BITMAPINFOHEADER

Posted on 2002-06-03
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Last Modified: 2008-02-01
Hello,
How can I get the BITMAPINFOHEADER of the TBitmap?
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Question by:libbysharf
2 Comments
 
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freshman3k earned 50 total points
ID: 7052090
Hello!

The following should work:

Var
Bitmap: TBitmap;
BitmapHeader: pBitmapInfo;
BitmapImage : POINTER;
HeaderSize : DWORD;
ImageSize : DWORD;
Begin
  Bitmap:=TBitMap.Create;
  Bitmap.LoadFromFile('c:\picture.bmp');
 
  GetDIBSizes(Bitmap.Handle, HeaderSize, ImageSize);
  GetMem(BitmapHeader, HeaderSize);
  GetMem(BitmapImage, ImageSize);
 
  GetDIB(Bitmap.Handle,Bitmap.Palette,BitmapHeader^,BitmapImage^);
 {the variable 'BitmapHeader' now contains the header of the bitmap}

  FreeMem(BitmapHeader);
  FreeMem(BitmapImage);
End;

pBitmapInfo is the same as BITMAPINFOHEADER


Hope this helps!
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Author Comment

by:libbysharf
ID: 7053268
Thanks a lot!
Very simple and powerfull!
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