| Microsoft DirectX 9.0 |
The PlayForwards method plays forward at the specified speed from the current location.
Syntax
HRESULT PlayForwards(
double dwSpeed,
DWORD dwFlags,
IDvdCmd **ppCmd
);
Parameters
dwSpeed
[in] Value that specifies the playback speed. This value is a multiplier, where 1.0 is the authored speed, so a value of 2.5 plays at two and one-half times the authored speed, while a value of 0.5 plays at half the authored speed. The actual speed of playback depends on the capabilities of the video decoder.
dwFlags
[in] Bit flag that contains one or more DVD_CMD_FLAGS enumeration specifying command synchronization options.
ppCmd
[out] Address of a pointer to an IDvdCmd object that can be used to synchronize DVD commands.
Return Values
Returns one of the following values.
| Return code | Description |
| S_OK | Success. |
| VFW_E_DVD_OPERATION_INHIBITED | UOP control prohibits the operation. |
Remarks
This method is demonstrated in the DVDSample application in CDvdCore::FastForward.
The following table shows the Annex J command name to which this method name corresponds, and the domains in which this method is valid.
| Annex J Command Name | Valid Domains |
| Forward_Scan | DVD_DOMAIN_VideoManagerMenu DVD_DOMAIN_VideoTitleSetMenu DVD_DOMAIN_Title |
See Also