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nishaj

6Apr2006 19:49

Display a loaded bitmap in only one colour

Hi,
Could someone please help me out with displaying a bitmap in only one colour?
Thanks,
Nisha.

coderzone

6Apr2006 22:50

Re: Display a loaded bitmap in only one colour

What do you mean by one color. Do you mean black and white or you mean only the RGB any one stream.

nishaj

7Apr2006 02:59

Re: Display a loaded bitmap in only one colour

What I meant was to display in any RGB colour;for instance ,say, red.

Thanks.

shabbir

7Apr2006 14:38

Re: Display a loaded bitmap in only one colour

Just try out the following.

Use CDC::StretchBlt

Code: CPP

BOOL StretchBlt( int x, int y, int nWidth, int nHeight, CDC* pSrcDC, int xSrc, int ySrc, int nSrcWidth, int nSrcHeight, DWORD dwRop );

to get such a combination that you can mask the image bits to display the requested of RGB. and then use CDC::MaskBlt

Code: CPP

BOOL MaskBlt( int x, int y, int nWidth, int nHeight, CDC* pSrcDC, int xSrc, int ySrc, CBitmap& maskBitmap, int xMask, int yMask, DWORD dwRop );

to mask the bitmap and display it to user.

shabbir

7Apr2006 14:39

Re: Display a loaded bitmap in only one colour

Also I forgot to add that

Code: CPP

BOOL TransparentBlt(
  HDC hdcDest,
  int nXOriginDest,
  int nYOriginDest,
  int nWidthDest,
  int hHeightDest,
  HDC hdcSrc,
  int nXOriginSrc,
  int nYOriginSrc,
  int nWidthSrc,
  int nHeightSrc,
  UINT crTransparent
);

can also help but its for transparent output.

nishaj

7Apr2006 16:54

Re: Display a loaded bitmap in only one colour

Thanks a lot; I will try it out and let you know.

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