Title: Application path & name from windows handle.
Question: How do I retrieve a filename from a windows handle?
Answer:
This function will return the executable name and path of an application specified by it's windows handle.
function GetAppName(hwindow: HWND): string;
var
h : HMODULE;
begin
SetLength(Result, 100);
h:=GetClassLong(hwindow, GCL_HMODULE);
GetModuleFileName(h, PChar(Result), 100);
end;
eg. ShowMessage(GetAppName(FindWindow('notepad.exe', nil)));