Device.TestCooperativeLevel Method
Reports the current cooperative-level status of the Direct3D device for a windowed or full-screen application.
Namespace: Microsoft.WindowsMobile.DirectX.Direct3D
Assembly: Microsoft.WindowsMobile.DirectX (in microsoft.windowsmobile.directx.dll)
Syntax
'Declaration
Public Sub TestCooperativeLevel
'Usage
Dim instance As Device
instance.TestCooperativeLevel
public void TestCooperativeLevel ()
public:
void TestCooperativeLevel ()
public void TestCooperativeLevel ()
public function TestCooperativeLevel ()
Not applicable.
Exceptions
| Exception type | Condition |
|---|---|
The device is lost but cannot be reset at this time. Therefore, rendering is not possible. |
|
The device is lost but can be reset at this time. |
Remarks
If the device is lost and cannot be restored at the current time, TestCooperativeLevel throws a DeviceLostException. This is the case, for example, when a full-screen device loses focus. If an application detects a lost device, it should pause and periodically call TestCooperativeLevel until no exceptions are thrown. The application can then attempt to reset the device by calling Reset and, if this succeeds, restore the necessary resources and resume normal operation. Note that Present throws a DeviceLostException if the device is either "lost" or "not reset."
A call to TestCooperativeLevel fails if made on a thread other than the one used to create the device being reset.
Platforms
Windows CE, Windows Mobile for Pocket PC, Windows Mobile for Smartphone
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.
Version Information
.NET Compact Framework
Supported in: 2.0
See Also
Reference
Device Class
Device Members
Microsoft.WindowsMobile.DirectX.Direct3D Namespace