IMediaParams::SetParam
The SetParam method sets the value of a parameter.
Syntax
HRESULT SetParam(
DWORD dwParamIndex,
MP_DATA value
);
Parameters
dwParamIndex
[in] Zero-based index of the parameter, or DWORD_ALLPARAMS to apply the value to every parameter.
value
[in] New value of the parameter.
Return Values
Returns an HRESULT value. Possible values include the following.
| Return Code | Description |
| E_INVALIDARG | Index out of range, or illegal parameter value. |
| S_OK | Success. |
Remarks
If the parameter is currently within an envelope segment, the envelope segment will overwrite the new value. To remove an envelope segment, call the FlushEnvelope method.
To enumerate the parameters supported by this object, along with their index values, use the IMediaParamInfo interface.
Requirements
Header: Medparam.h
Library: Dmoguids.lib.
See Also