Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CDC::SetPixel
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──Microsoft Foundation Classes──────────────────────────────────────────────
 
  DWORD SetPixel( int x, int y, DWORD crColor );
  DWORD SetPixel( POINT point, DWORD crColor );
 
  Parameter   Description
 
  <x>         Specifies the logical x-coordinate of the point to be set.
 
  <y>         Specifies the logical y-coordinate of the point to be set.
 
  <crColor>   Specifies the color used to paint the point.
 
  <point>     Specifies the logical x- and y-coordinates of the point to
              be set. You can pass either a POINT structure or a
              CPoint object for this parameter.
 
  Remarks
 
  Sets the pixel at the point specified to the closest approximation of
  the color specified by <crColor>. The point must be in the clipping
  region. If the point is not in the clipping region, the function is
  ignored.
 
  Not all devices support the function. For more information, see the
  RC_BITBLT capability in the GetDeviceCaps member function.
 
  Return Value
 
  An RGB color value for the color that the point is actually painted.
  This value can be different than that specified by <crColor> if an
  approximation of that color is used. If the function fails (if the point
  is outside the clipping region), the return value is -1.
 
  See Also
 
  CDC::GetDeviceCaps, CDC::GetPixel, ::SetPixel
 
 
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