MCI_OVLY_OPEN_PARMS - Win32 Multimedia Programmer's Reference (mmedia.hlp)

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MCI_OVLY_OPEN_PARMS

The MCI_OVLY_OPEN_PARMS structure contains information for the MCI_OPEN command for video-overlay devices.

typedef struct {

DWORD dwCallback;

MCIDEVICEID wDeviceID;

LPCSTR lpstrDeviceType;

LPCSTR lpstrElementName;

LPCSTR lpstrAlias;

DWORD dwStyle;

DWORD hWndParent;

} MCI_OVLY_OPEN_PARMS;

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

wDeviceID
Identifier 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.) If this member is a constant, it can be one of the values listed in Constants: Device Types.

lpstrElementName
Device element name (usually a path).

lpstrAlias
Optional device alias.

dwStyle
Window style.

hWndParent
Handle of parent window.

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 in place of MCI_OVLY_OPEN_PARMS if you are not using the extended data members.

See Also
MCI_OPEN, MCI_OPEN_PARMS, mciSendCommand

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