Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CBitmap::CreateDiscardableBitmap
CBitmap                                     Up Contents Index Back
──Microsoft Foundation Classes──────────────────────────────────────────────
 
  BOOL CreateDiscardableBitmap( CDC* pDC, int nWidth, int nHeight );
 
  Parameter   Description
 
  <pDC>       Specifies a device context.
 
  <nWidth>    Specifies the width (in bits) of the bitmap.
 
  <nHeight>   Specifies the height (in bits) of the bitmap.
 
  Remarks
 
  Initializes a discardable bitmap that is compatible with the device
  context identified by <pDC>. The bitmap has the same number of color
  planes or the same bits-per-pixel format as the specified device
  context. An application can select this bitmap as the current bitmap for
  a memory device that is compatible with the one specified by <pDC>.
 
  Windows can discard a bitmap created by this function only if an
  application has not selected it into a display context. If Windows
  discards the bitmap when it is not selected and the application later
  attempts to select it, the CDC::SelectObject or
  CMetaFileDC::SelectObject function will return NULL.
 
  When an application has finished using the bitmap created by the
  CreateBitmapIndirect function, it should select the bitmap out of the
  device context.
 
  Return Value
 
  TRUE if successful; otherwise FALSE.
 
  See Also
 
  ::CreateDiscardableBitmap
 
 
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