DD_DIRECTDRAW_GLOBAL structure (ddrawint.h)
The DD_DIRECTDRAW_GLOBAL structure contains driver information that describes the driver's device.
Syntax
typedef struct _DD_DIRECTDRAW_GLOBAL {
VOID *dhpdev;
ULONG_PTR dwReserved1;
ULONG_PTR dwReserved2;
LPDDVIDEOPORTCAPS lpDDVideoPortCaps;
} *PDD_DIRECTDRAW_GLOBAL, DD_DIRECTDRAW_GLOBAL;
Members
dhpdev
Handle to the driver's private PDEV.
dwReserved1
Reserved for use by the display driver.
dwReserved2
Reserved for use by the display driver.
lpDDVideoPortCaps
Points to an array of one or more DDVIDEOPORTCAPS structures in which the driver should describe the DirectDraw video port extensions (VPE) objects that it supports. The structures are allocated by DirectDraw; the number of structures is based on the value returned in the dwMaxVideoPort member of DDCORECAPS.
This member is NULL when the driver does not implement the VPE.
Remarks
DirectDraw allocates memory for this structure. Only one DD_DIRECTDRAW_GLOBAL definition exists per device. In a multimonitor system, each device has its own unique DD_DIRECTDRAW_GLOBAL structure.
The dwReserved1 and dwReserved2 members can be used as required by the driver. For example, a driver might store pointers to internal data structures in these members.
Requirements
| Requirement | Value |
|---|---|
| Header | ddrawint.h (include Winddi.h) |