CDC::CreateCompatibleDC - Microsoft Foundation Classes

Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)

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CDC::CreateCompatibleDC

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──Microsoft Foundation Classes──────────────────────────────────────────────
 
  BOOL CreateCompatibleDC( CDC* pDC );
 
  Parameter   Description
 
  <pDC>       A pointer to a device context. If <pDC> is NULL, the
              function creates a memory device context that is compatible
              with the system display.
 
  Remarks
 
  Creates a memory device context that is compatible with the device
  specified by <pDC>. A memory device context is a block of memory that
  represents a display surface. It can be used to prepare images in memory
  before copying them to the actual device surface of the compatible
  device.
 
  When a memory device context is created, GDI automatically selects a
  1-by-1 monochrome stock bitmap for it.
 
  This function can only be used to create compatible device contexts for
  devices that support raster operations. For more information, see the
  RC_BITBLT raster capability in the member function GetDeviceCaps. GDI
  output functions can be used with a memory device context only if a
  bitmap has been created and selected into that context.
 
  Return Value
 
  TRUE if successful; otherwise FALSE.
 
  See Also
 
  ◄CDC::CDC►, ◄CDC::GetDeviceCaps►, ◄::CreateCompatibleDC►
 
 
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