Re: Cutting a BMP file to two BMP file

From:
"AliR \(VC++ MVP\)" <AliR@online.nospam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 16 Sep 2008 09:37:00 -0500
Message-ID:
<qwPzk.450$x%.6@nlpi070.nbdc.sbc.com>
Here is how I would do it:

#include <atlimage.h>

void SplitImage()
{
   CImage Image;
   Image.LoadFromResource(AfxGetInstanceHandle(),IDB_BITMAP1);

   CImage UpperImage;
   UpperImage.Create(Image.GetWidth(),Image.GetHeight()/2,Image.GetBPP());

   HDC hdc = UpperImage.GetDC();
   Image.BitBlt(hdc,0,0,Image.GetWidth(),Image.GetHeight()/2,0,0);
   UpperImage.ReleaseDC();

   UpperImage.Save("UpperPart.bmp",Gdiplus::ImageFormatBMP);

   CImage LowerImage;
   LowerImage.Create(Image.GetWidth(),Image.GetHeight()/2,Image.GetBPP());

   hdc = LowerImage.GetDC();
   Image.BitBlt(hdc,0,0,Image.GetWidth(),Image.GetHeight()/2,0,Image.GetHeight()/2);
   LowerImage.ReleaseDC();

   LowerImage.Save("LowerPart.bmp",Gdiplus::ImageFormatBMP);

}

AliR.

"Matrixinline" <anup.kataria@gmail.com> wrote in message
news:298564c7-75d2-46ed-80d9-8bfa40cea879@s28g2000prd.googlegroups.com...

Hi

Can you please let me know how Can I cut a BMP file to 2 Bitmap file.
I do not want to change the widht of file but yes I wish to split the
height.

Do I need to just copy the bits and it will get done?

Thanks
Anup

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