IMSVidPlayback::get_Rate method (segment.h)
[The feature associated with this page, Microsoft TV Technologies, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]
The get_Rate method retrieves the playback rate.
Syntax
HRESULT get_Rate(
[out] double *plRate
);
Parameters
[out] plRate
Pointer to a variable that receives the playback rate, as a ratio to the authored rate. For example, 0.5 means half the normal speed, 1.0 means normal speed, and 2.0 means twice the normal speed.
Return value
The method returns an HRESULT. Possible values include the following.
| Return code | Description |
|---|---|
|
NULL pointer argument. |
|
The graph is not built. Call the Build or View method on the Video Control. |
|
The method succeeded. |
Note��The value ERROR_INVALID_STATE is converted to an HRESULT with the HRESULT_FROM_WIN32 macro.
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Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows�XP [desktop apps only] |
| Minimum supported server | None supported |
| Target Platform | Windows |
| Header | segment.h (include Msvidctl.h) |