Detecting full-screen Direct3D applications

Question

Is there any way to detect - through the Direct3D API - Direct3D applications running in full-screen mode?

SHQueryUserNotificationState, which can indicate such applicat

Answer 1

Try 'IDirect3DDevice9::GetDisplayMode':

http://msdn.microsoft.com/en-us/library/bb174387%28VS.85%29.aspx

HRESULT GetDisplayMode(
  UINT  iSwapChain,
  D3DDISPLAYMODE * pMode
);

Parameters:

iSwapChain[in]

An unsigned integer specifying the swap chain. 

pMode[out]

Pointer to a D3DDISPLAYMODE structure containing data about the

display mode of the adapter. As opposed to the display mode of the device, which may not be active if the device does not own full-screen mode.