MCI_DGV_LIST_PARMSW structure (digitalv.h)
The MCI_DGV_LIST_PARMS structure contains the information for the MCI_LIST command for digital-video devices.
Syntax
typedef struct {
DWORD_PTR dwCallback;
LPWSTR lpstrReturn;
DWORD dwLength;
DWORD dwNumber;
DWORD dwItem;
LPWSTR lpstrAlgorithm;
} MCI_DGV_LIST_PARMSW;
Members
dwCallback
The low-order word specifies a window handle used for the MCI_NOTIFY flag.
lpstrReturn
Buffer for return string.
dwLength
Length, in bytes, of buffer.
dwNumber
Index of item in list.
dwItem
Type of list item.
lpstrAlgorithm
String containing algorithm name.
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_LIST_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 |