DwmEnableMMCSS function (dwmapi.h)
Notifies the Desktop Window Manager (DWM) to opt in to or out of Multimedia Class Schedule Service (MMCSS) scheduling while the calling process is alive.
HRESULT DwmEnableMMCSS( BOOL fEnableMMCSS );
TRUE to instruct DWM to participate in MMCSS scheduling; FALSE to opt out or end participation in MMCSS scheduling.
If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
DWM will be scheduled by the MMCSS as long as any process that called DwmEnableMMCSS to enable MMCSS is active and has not previously called DwmEnableMMCSS to disable MMCSS.
|Minimum supported client||Windows Vista [desktop apps only]|
|Minimum supported server||Windows Server 2008 [desktop apps only]|