Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CDC::PatBlt
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  BOOL PatBlt( int x, int y, int nWidth, int nHeight, DWORD dwRop );
 
  Parameter   Description
 
  <x>         Specifies the logical x-coordinate of the upper-left corner
              of the rectangle that is to receive the pattern.
 
  <y>         Specifies the logical y-coordinate of the upper-left corner
              of the rectangle that is to receive the pattern.
 
  <nWidth>    Specifies the width (in logical units) of the rectangle that
              is to receive the pattern.
 
  <nHeight>   Specifies the height (in logical units) of the rectangle
              that is to receive the pattern.
 
  <dwRop>     Specifies the raster-operation code. Raster-operation codes
              (ROPs) define how GDI combines colors in output operations
              that involve a current brush, a possible source bitmap, and
              a destination bitmap. This parameter may be one of the
              following values:
 
              Value       Meaning
 
              PATCOPY     Copies pattern to destination bitmap.
 
              PATINVERT   Combines destination bitmap with pattern using
                          the Boolean OR operator.
 
              DSTINVERT   Inverts the destination bitmap.
 
              BLACKNESS   Turns all output black.
 
              WHITENESS   Turns all output white.
 
  Remarks
 
  Creates a bit pattern on the specified device. The pattern is a
  combination of the selected brush and the pattern already on the device.
  The raster-operation code specified by <dwRop> defines how the patterns
  are to be combined. The values of <dwRop> for this function are a
  limited subset of the full 256 ternary raster-operation codes; in
  particular, an operation code that refers to a source cannot be used.
  Not all devices support the PatBlt function.
 
  For more information, see the RC_BITBLT capability under the
  GetDeviceCaps member function.
 
  Return Value
 
  TRUE if the bit pattern is drawn; otherwise FALSE.
 
  See Also
 
  CDC::GetDeviceCaps, ::PatBlt
 
 
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