I would like to find the values of some of windows API constants, such as, but not limited to LVM_ENABLEGROUPVIEW & WM_SHOWWINDOW
Looking on the n
You can look at the windows unit source (and related units) for the constants. They have limited comments for their use.
The windows SDK help provides some more answers.
Else the MSDN on the internet.
Getting a complete list will require some research. But in the end you will be able to find all the answers.