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4/8/2010

Applications use the methods of the IDirectDrawinterface to create DirectDrawobjects and work with system-level variables. For a conceptual overview, see DirectDraw in the Graphics and Multimedia guide.

The methods of the IDirectDrawinterface are organized into the following groups:


Cooperative levels	IDirectDraw::SetCooperativeLevel
	IDirectDraw::TestCooperativeLevel
Creating objects	IDirectDraw::CreateClipper
	IDirectDraw::CreateSurface
Device capabilities	IDirectDraw::GetCaps
	IDirectDraw::GetDeviceIdentifier
Display modes	IDirectDraw::EnumDisplayModes
	IDirectDraw::GetDisplayMode
	IDirectDraw::GetMonitorFrequency
	IDirectDraw::RestoreDisplayMode
	IDirectDraw::SetDisplayMode
	IDirectDraw::WaitForVerticalBlank
Display status	IDirectDraw::GetScanLine
	IDirectDraw::GetVerticalBlankStatus
Miscellaneous	IDirectDraw::GetAvailableVidMem
	IDirectDraw::GetFourCCCodes
Surface management	IDirectDraw::EnumSurfaces
	IDirectDraw::FlipToGDISurface
	IDirectDraw::GetGDISurface
	IDirectDraw::GetSurfaceFromDC
	IDirectDraw::RestoreAllSurfaces

The IDirectDrawinterface, like all COM interfaces, inherits the IUnknowninterface methods.

The IUnknowninterface supports the following three methods:


IUnknown	IUnknown::AddRef
	IUnknown::QueryInterface
	IUnknown::Release

The IDirectDraw::Initializemethod is not supported in Windows Embedded CE.

You can use the LPDIRECTDRAWto declare a variable that contains a pointer to an IDirectDrawinterface. The Ddraw.h header file declares this data type with the following code.

	Copy Code
typedef struct IDirectDraw*LPDIRECTDRAW;

Requirements

Header	ddraw.h
Library	ddraw.lib
Windows Embedded CE	Windows Embedded CE 6.0 and later
Windows Mobile	Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later



IDirectDraw