I’m trying to use the following DeviceContext struct to get some Graphics Driver information.
http://msdn.microsoft.com/en-us/library/windows/desktop/dd183569%28v=vs.85%29.aspx
In the documentation, the one parameter says it can be any “reasonable combination” of the given options.
What type are they? Are they defined as pre-compiler fields? And how do I find out each combined value?
The values of the flags are defined in the page you referenced. The combined value is created by ORing the fields together, for example: