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#ifndef nsIDrawingSurfacePh_h___
#define nsIDrawingSurfacePh_h___

#include "nsIDrawingSurface.h"
#include <Pt.h>

// windows specific drawing surface method set

#define NS_IDRAWING_SURFACE_PH_IID   \
{ 0x1ed958b0, 0xcab6, 0x11d2, \
{ 0xa8, 0x49, 0x00, 0x40, 0x95, 0x9a, 0x28, 0xc9 } }

class nsIDrawingSurfacePh : public nsISupports
{
public:
  NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDRAWING_SURFACE_PH_IID)

  /**
   * Initialize a drawing surface using a windows DC.
   * aDC is "owned" by the drawing surface until the drawing
   * surface is destroyed.
   * @param  aDC HDC to initialize drawing surface with
   * @return error status
   **/
  NS_IMETHOD Init( PhDrawContext_t *aDC, PhGC_t *aGC ) = 0;

  /**
   * Initialize an offscreen drawing surface using a
   * windows DC. aDC is not "owned" by this drawing surface, instead
   * it is used to create a drawing surface compatible
   * with aDC. if width or height are less than zero, aDC will
   * be created with no offscreen bitmap installed.
   * @param  aDC HDC to initialize drawing surface with
   * @param  aWidth width of drawing surface
   * @param  aHeight height of drawing surface
   * @param  aFlags flags used to control type of drawing
   *         surface created
   * @return error status
   **/
  NS_IMETHOD Init( PRUint32 aWidth, PRUint32 aHeight,
                  PRUint32 aFlags) = 0;
				  
};

#endif  // nsIDrawingSurfacePh_h___ 
