MCI_DGV_INFO_PARMSW structure (digitalv.h)
The MCI_DGV_INFO_PARMS structure contains parameters for the MCI_INFO command for digital-video devices.
Syntax
typedef struct {
DWORD_PTR dwCallback;
LPWSTR lpstrReturn;
DWORD dwRetSize;
DWORD dwItem;
} MCI_DGV_INFO_PARMSW;
Members
dwCallback
The low-order word specifies a window handle used for the MCI_NOTIFY flag.
lpstrReturn
Pointer to buffer for return string.
dwRetSize
Size, in bytes, of return buffer.
dwItem
Constant describing information to return.
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_INFO_PARMS as an alias that 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 is 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 |