Comments

• How do I set background colund white where foreground has a line of definite width and length

  Posted by Legacy on 07/16/2003 12:00am

  Originally posted by: deepthi

  How do I set background colour black and foreground colour towhite where foreground has a line of definite width and length

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• Serializing the bitmap

  Posted by Legacy on 11/21/2002 12:00am

  Originally posted by: srinivasan

  How to reload the bitmap using serialization.
  

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• Where is the article:TransparentBlt using only two BLT operations - m.chung (1998/12/18)?

  Posted by Legacy on 08/09/2002 12:00am

  Originally posted by: Hector

  Where is the article: TransparentBlt using only two BLT operations - m.chung (1998/12/18)?

  I need it. Thanks

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• Excellent! Works great.

  Posted by Legacy on 06/14/2002 12:00am

  Originally posted by: J.Reichard

  Thanks a million!

  Reply

• How to add transparent bitmap into header control for list view

  Posted by Legacy on 04/18/2002 12:00am

  Originally posted by: Tao Zhou

  Thanks

  Reply

• Easier with image-list

  Posted by Legacy on 05/16/2001 12:00am

  Originally posted by: Stephan Brenner

  First I tried your function, but I had problems when printing. So I wrote my own short function using an image-list for drawing the bitmap transparently.

  void TransparentBlt(CDC* pDC, HBITMAP hBitmap, CPoint ptLocation)
  {
  CBitmap* pBitmap = CBitmap::FromHandle(hBitmap);
  
  // Get size of bitmap
  BITMAP bmpInfo;
  CSize bitSize;
  pBitmap->GetBitmap(&bmpInfo);
  bitSize = CSize(bmpInfo.bmWidth, bmpInfo.bmHeight);

  // Prepare ImageList
  CImageList imageList;
  imageList.Create(bitSize.cx, bitSize.cy, ILC_COLOR24|ILC_MASK, 1, 1);
  imageList.Add(pBitmap, 0xFFFFFF); // Transparent color: WHITE

  // Draw imagelist transparently
  imageList.DrawIndirect(pDC, 0, ptLocation, bitSize, CPoint(0, 0));
  }

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• This function does no work with resource(system color) bitmaps.

  Posted by Legacy on 12/04/2000 12:00am

  Originally posted by: Andrey Zwyagilskii

  I spent many time trying to force this function work. But have no result. I use CImageList for this purpose. It is 2 lines of code need to draw system color bitmap transparently:
  m_ImgLst.Create( IDB_BITMAP, 16, 1, RGB(0,255,255) );
  m_ImgLst.Draw(pDC,0,CPoint(x0,y0),ILD_TRANSPARENT);

  This method works perfectly to all images.

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• All black output ?

  Posted by Legacy on 05/17/2000 12:00am

  Originally posted by: Morten Andersen

  I tried your routine, but instead of getting a transparent blit, I got an all black output. The bitmap I'm copying from is 256 colors, and the bitmap I'm blitting to is 16M colors. Can that have anything to do with it ?

  Please tell me what went wrong, and how I can fix it.

  - Morten Andersen

  Reply

• Help me in drawing a bitmap in Dialog based Projects.

  Posted by Legacy on 04/12/2000 12:00am

  Originally posted by: Ren

  Hi, 
  
  I am trying to place a bitmap on my dialog based MFC project. I have used double buffering in OnInitDialog() and OnPaint(), but It didn't work to draw, bitmaps, even to SetBkColor(). Any help is appriciated.
  
  Ren.
  

  Reply

• Be careful...

  Posted by Legacy on 02/22/2000 12:00am

  Originally posted by: Greg Heck

  Be careful using this one in Windows 2000 and Windows 98. The Windows API has added the function TransparentBlt.

  Reply