Im not sure what Im doing wrong but I just cant get this to work. These are the steps im taking:

//i do :
//FullImage is a CBitmap*....CBitmap* FullImage=new CBitmap();
//
BITMAP bmp;
//
FullImage->GetBitmap(&bmp);
//
//for some reason the bmp.biBits is empty so i do this:
//
LPBYTE lpBits = (LPBYTE) GlobalAlloc(GMEM_FIXED,        
                            bmInfo.bmiHeader.biSizeImage);
//
FullImage->GetBitmapBits( bmInfo.bmiHeader.biSizeImage, 
                         (LPVOID) lpBits ) ;
//
//lpBits isnt empty however it has some weird symbols if I look
//at it in the quick watch window while debugging????
//
BITMAPFILEHEADER bmfh;//i fill this in
BITMAPINFO bmInfo;//i fill this in
//
//then write out the bitmap fileheader and bitmapinfoheader
//File is a CFile
//
File.Write(&bmfh,sizeof(BITMAPFILEHEADER))
File.Write(&bmInfo.bmiHeader,sizeof(bmInfo.bmiHeader));
//
//then write out the bitmap bits
File.Write((LPSTR)lpBits,bmInfo.bmiHeader.biSizeImage);

     

Everything seems to go fine and i open up my newly created bmp in mspaint but its empty just a blank white bmp with the correct dimmensions but no picture. If instead of writing it to file I display it in a CListCtrl it shows up fine. The reason I ask about how to do thid with a HBITMAP is because I can get the HBITMAP associated with the CBitmap by using the CBitmap::operator HBITMAP() but i dont know how to save that to disk either. Can anyone tell me what im doing wrong? Thanks for any help you can offer

CBitmap is a class.. It contains code. It''s should not be saved to disk.

CBitmaps not really good. Take Nehe's 6th tutorial, he shows a nice way of loading a bmp, and its alot cleaner. there also a function called write bmp you need to use. and glGetPixels

"I''ve sparred with creatures from the nine hells themselves... I barely plan on breaking a sweat here, today."~Drizzt Do''Urden

Edited by - Drizzt DoUrden on August 23, 2001 12:16:45 AM

Galileo430>I know CBitmap is a class, what I meant was how do I save the bitmap that is attached or whatever to the CBitmap.

Drizzt DoUrden>Thanks for the tip but ive figured out how to do it now.

Thanks for the replies

Please don''t confuse a "DIB" with a regular "BMP" or device-dependent bitmap...