IDirect3DMobileDevice::TestCooperativeLevel
A version of this page is also available for
4/8/2010
This method reports the current cooperative-level status of the Microsoft® Direct3D Mobile® device for a windowed or full-screen application.
Syntax
HRESULT TestCooperativeLevel();
Parameters
None.
Return Value
If the method succeeds, the return value is D3DM_OK (see D3DM Values).
If the method fails, the return value can be one of the following D3DMERR Values.
- D3DMERR_DEVICELOST
- D3DMERR_DEVICENOTRESET
Remarks
If the device is lost but cannot be restored at the current time, IDirect3DMobileDevice::TestCooperativeLevel returns the D3DMERR_DEVICELOST return code. This would be the case, for example, when a full-screen device has lost focus. If an application detects a lost device, it should pause and periodically call IDirect3DMobileDevice::TestCooperativeLevel until it receives a return value of D3DMERR_DEVICENOTRESET.
The application may then attempt to reset the device by calling IDirect3DMobileDevice::Reset and, if this succeeds, restoring the necessary resources and resume normal operation. Note that IDirect3DMobileDevice::Present will return D3DMERR_DEVICELOST if the device is either "lost" or "not reset."
A call to IDirect3DMobileDevice::TestCooperative Level will fail if called on a different thread than that used to create the device being reset.
Requirements
| Header | d3dm.h |
| Library | D3dm.lib, D3dmguid.lib |
| Windows Embedded CE | Windows CE 5.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |
See Also
Reference
IDirect3DMobileDevice
IDirect3DMobileDevice::Reset