I am trying to use GetWindowLongPtrA but I keep getting the "Unable to find an entry point named 'GetWindowLongPtrA' in DLL 'user32.dll'". (also SetWindowLongPtrA getting the same error). I'v...

I have a window with a solid border around it. How can I remove the border (all of the non-client area) by using SetWindowLong and GetWindowLong?

I want to P/Invoke to GetWindowLongPtr and SetWindowLongPtr, and I'm seeing conflicting information about them. Some sources say that, on 32-bit platforms, GetWindowLongPtr is just a preprocessor ...

I was using GetWindowLong like this: [DllImport("user32.dll")] private static extern IntPtr GetWindowLong(IntPtr hWnd, int nIndex); But according to the MSDN docs I am supposed to be using GetWi...