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.

หมายเหตุ

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

See also

MCI

MCI Structures

MCI_LIST

mciSendCommand