Variable SurfaceCaps.supportedAlpha

Supported composition mode for the surface. At least one bit is always included. Opaque composition is always feasible by having no alpha channel or with alpha channel equals to 1.0.


						
				struct SurfaceCaps
				

				
					{
					

				
				  // ...
				

				  CompositeAlpha supportedAlpha
				;
				

				  // ...
				

				}