Retrieving Information About A Device Driver
Since guard band clipping is fully supported by DirectX and the Windows Driver Model, it is easy for a developer to query a device's guard band clipping settings without knowledge of any hardware specific commands.
The following code snippet retrieves the offset of the guard band and displays them on a dialog box:
// ... Device creation ... - renderingDevice is assumed to be the name of the Microsoft.DirectX.Direct3D.Device which is queried.
MessageBox.Show ("Top margin: " + renderingDevice.DeviceCaps.GuardBandTop.ToString);
MessageBox.Show ("Left margin: " + renderingDevice.DeviceCaps.GuardBandLeft.ToString);
MessageBox.Show ("Right margin: " + renderingDevice.DeviceCaps.GuardBandRight.ToString);
MessageBox.Show ("Bottom margin: " + renderingDevice.DeviceCaps.GuardBandBottom.ToString);
'' // ... Device disposal ...
Read more about this topic: Guard-band Clipping
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