MCI_DGV_STATUS_PARMSA structure (digitalv.h)

The MCI_DGV_STATUS_PARMS structure contains parameters for the MCI_STATUS command for digital-video devices.

Syntax

typedef struct {
  DWORD_PTR dwCallback;
  DWORD_PTR dwReturn;
  DWORD     dwItem;
  DWORD     dwTrack;
  LPSTR     lpstrDrive;
  DWORD     dwReference;
} MCI_DGV_STATUS_PARMSA;

Members

dwCallback

The low-order word specifies a window handle used for the MCI_NOTIFY flag.

dwReturn

Buffer for return information.

dwItem

Identifies capability being queried.

dwTrack

Length or number of tracks.

lpstrDrive

Specifies the approximate amount of disk space that can be obtained by the MCI_RESERVE command.

dwReference

Specifies the approximate location of the nearest previous intraframe-encoded image.

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_STATUS_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

See also

MCI

MCI Structures

MCI_RESERVE

MCI_STATUS

mciSendCommand