GetWindowLong (GetTopWindow(NULL),GWL_HINSTANCE) returns 0 ... (Also tried with GetWindowLongPtr) Does anyone have an idea why is that?
Also how do you convert LONG to HINSTANCE?
- GetTopWindow(NULL) does not return null
EDIT: The check is for a keylogger that is injected inside the application I want to log from. Using GetModuleHandle(0) I get the HINSTANCE of my injected app and if I could have the top window's HINSTANCE I could check to see if the input I get is for my application or not.