MCI_DGV_QUALITY_PARMSW structure (digitalv.h)

The MCI_DGV_QUALITY_PARMS structure contains parameters for the MCI_QUALITY command for digital-video devices.

Syntax

typedef struct {
  DWORD_PTR dwCallback;
  DWORD     dwItem;
  LPWSTR    lpstrName;
  DWORD     lpstrAlgorithm;
  DWORD     dwHandle;
} MCI_DGV_QUALITY_PARMSW;

Members

dwCallback

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

dwItem

One of the following constants indicating the type of algorithm:

Name	Description
MCI_QUALITY_ITEM_AUDIO	Definitions are for an audio compression algorithm.
MCI_QUALITY_ITEM_STILL	Definitions are for a still video compression algorithm.
MCI_QUALITY_ITEM_VIDEO	Definitions are for a video compression algorithm.

lpstrName

String naming description.

lpstrAlgorithm

String naming algorithm.

dwHandle

Handle to a structure containing information describing the quality attributes.

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_QUALITY_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_QUALITY

mciSendCommand