MCI_DGV_INFO_PARMSA structure (digitalv.h)

  • Article

The MCI_DGV_INFO_PARMS structure contains parameters for the MCI_INFO command for digital-video devices.

Syntax

typedef struct {
  DWORD_PTR dwCallback;
  LPSTR     lpstrReturn;
  DWORD     dwRetSize;
  DWORD     dwItem;
} MCI_DGV_INFO_PARMSA;

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 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_INFO

mciSendCommand