MCI_DGV_SETVIDEO_PARMSA structure (digitalv.h)
The MCI_DGV_SETVIDEO_PARMS structure contains parameters for the MCI_SETVIDEO command for digital-video devices.
Syntax
typedef struct {
DWORD_PTR dwCallback;
DWORD dwItem;
DWORD dwValue;
DWORD dwOver;
LPSTR lpstrAlgorithm;
LPSTR lpstrQuality;
DWORD dwSourceNumber;
} MCI_DGV_SETVIDEO_PARMSA;
Members
dwCallback
The low-order word specifies a window handle used for the MCI_NOTIFY flag.
dwItem
Constant indicating the target adjustment.
dwValue
Adjustment level.
dwOver
Transmission length.
lpstrAlgorithm
Pointer to a null-terminated string containing the name of the video-compression algorithm.
lpstrQuality
Pointer to a null-terminated string containing a descriptor of the video-compression algorithm.
dwSourceNumber
Index of input source.
Remarks
When assigning data to the members of this structure, set the corresponding flags in the fdwCommand parameter of the mciSendCommand function to validate the members.
Note
The digitalv.h header defines MCI_DGV_SETVIDEO_PARMS as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Header | digitalv.h |