IDXGIAdapter3::RegisterVideoMemoryBudgetChangeNotificationEvent method

This method establishes a correlation between a CPU synchronization object and the budget change event.

Syntax

HRESULT RegisterVideoMemoryBudgetChangeNotificationEvent(
  [in]  HANDLE hEvent,
  [out] DWORD  *pdwCookie
);

Parameters

hEvent [in]

Type: HANDLE

Specifies a HANDLE for the event.

pdwCookie [out]

Type: DWORD*

A key value for the window or event to unregister. The IDXGIAdapter3::RegisterHardwareContentProtectionTeardownStatusEvent method returns this value.

Return value

Type: HRESULT

This method returns an HRESULT success or error code.

Remarks

Instead of calling QueryVideoMemoryInfo regularly, applications can use CPU synchronization objects to efficiently wake threads when budget changes occur.

Requirements

See also

IDXGIAdapter3