DDGPE Class (Compact 2013)

3/26/2014

The DDGPE class serves as the base from which a DirectDraw display driver can be derived.

The following table shows the methods defined in the DDGPE class.

For a description of the DDGPE class, see DDGPE Class Definition.

Method	Description
DDGPE::AllocBackBuffer	A special case allocator for creating back buffers for the primary surface.
DDGPE::AllocSurface	Allocates memory for a new surface.
DDGPE::AllocVideoSurface	Creates a DDGPESurf object in memory.
DDGPE::BltExpanded	Sets up and performs a GPE blit.
DDGPE::BltPrepare	Provides a DDGPE version of the GPE BltPrepare function.
DDGPE::DDGPEPrimarySurface	Returns a pointer to the primary surface associated with this object.
DDGPE::DetectMode	Determines the display mode that corresponds to supplied parameters.
DDGPE::DetectPixelFormat	Translates DDPIXELFORMAT into EGPEFormat or EDDGPEPixelFormat.
DDGPE::GetDriverData	Retrieves a pointer to driver data.
DDGPE::GetDriverGUID	Obtains the driver-specific globally unique identifier (GUID) of the specified object.
DDGPE::GetModeInfoEx	Returns extended mode information.
DDGPE::GetPhysicalModeId	Retrieves the mode of the display, if different from the current graphics device interface (GDI) mode.
DDGPE::InDisplay	Determines if the specified scanline is in the display.
DDGPE::PerformBlt	Performs a blit.
DDGPE::SetDriverData	Stores driver-specific data in the DDGPE object.
DDGPE::SetDriverGUID	Applies the driver's GUID to the specified object.
DDGPE::SetMode	Changes the current display mode.
DDGPE::SetVisibleSurface	Causes the specified GPE surface to flip to the display.
DDGPE::WrapSurface	Creates an object based on DDGPESurf on an existing block of memory.
m_dwPhysicalModeID	Contains the mode identifier for the current display mode, regardless of GDI settings.
m_pModeEx	Contains GDI's current mode information. Initialized by the driver.

See Also

Reference

DDGPE Base Classes
DDGPE Class Definition