DDADDVPCAPTUREBUFF structure (ddkmapi.h)
The DDADDVPCAPTUREBUFF structure contains the information required to add a new buffer to the internal capture queue.
Syntax
typedef struct _DDADDVPCAPTUREBUFF {
HANDLE hCapture;
DWORD dwFlags;
PMDL pMDL;
PKEVENT pKEvent;
LPDDCAPBUFFINFO lpBuffInfo;
} DDADDVPCAPTUREBUFF, *LPDDADDVPCAPTUREBUFF;
Members
hCapture
Handle to the video port extensions (VPE) object.
dwFlags
Indicates whether the destination buffer exists in regular system memory or nonlocal display memory (AGP). This member can be one of the following values:
| Flag | Meaning |
|---|---|
| DDADDBUFF_INVERT | The buffer is to be inverted during capture. |
| DDADDBUFF_NONLOCALVIDMEM | The destination buffer exists in nonlocal display memory. |
| DDADDBUFF_SYSTEMMEMORY | The destination buffer exists in system memory. |
pMDL
Points to an MDL (defined in wdm.h) that describes the physical pages of the destination buffer.
pKEvent
Points to a KEVENT that the kernel-mode video transport sets when the destination has been filled.
lpBuffInfo
Points to a DDCAPBUFFINFO structure that the kernel-mode video transport fills in before setting the KEVENT.
Requirements
| Requirement | Value |
|---|---|
| Header | ddkmapi.h (include Ddkmapi.h) |