MCI_WAVE_OPEN_PARMS structure
The MCI_WAVE_OPEN_PARMS structure contains information for MCI_OPEN command for waveform-audio devices.
Syntax
typedef struct {
DWORD_PTR dwCallback;
MCIDEVICEID wDeviceID;
LPCTSTR lpstrDeviceType;
LPCTSTR lpstrElementName;
LPCTSTR lpstrAlias;
DWORD dwBufferSeconds;
} MCI_WAVE_OPEN_PARMS;
Members
-
dwCallback
-
The low-order word specifies a window handle used for the MCI_NOTIFY flag.
-
wDeviceID
-
Indentifier returned to application.
-
lpstrDeviceType
-
Name or constant identifier of the device type. (The name of the device is typically obtained from the registry or SYSTEM.INI file.) This member can be one of the values listed in MCI Device Types.
-
lpstrElementName
-
Device element name (usually a path).
-
lpstrAlias
-
Optional device alias.
-
dwBufferSeconds
-
Buffer length, in seconds.
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.
You can use the MCI_OPEN_PARMS structure instead of MCI_WAVE_OPEN_PARMS if you are not using the extended data members.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|