EVRConfig_ForceThrottle attribute

Forces the Enhanced Video Renderer (EVR) to limit its output to match GPU bandwidth.

Data type



To get this attribute, call IMFAttributes::GetUINT32.

To set this attribute, call IMFAttributes::SetUINT32.


This attribute can be set on the EVR media sink. To set the attribute, use IUnknown::QueryInterface to query the EVR media sink for the IMFAttributes interface.

Setting this attribute has the same effect as setting the MFVideoRenderPrefs_ForceOutputThrottling flag on the EVR. See MFVideoRenderPrefs for a description of this flag.

The GUID constant for this attribute is exported from strmiids.lib.


Requirement Value
Minimum supported client
Windows 7 [desktop apps only]
Minimum supported server
Windows Server 2008 R2 [desktop apps only]

See also

Alphabetical List of Media Foundation Attributes

EVR Attributes

Video Quality Management