The GetForegroundWindow function returns a handle to the foreground window (the window with which the user is currently working). The system assigns a slightly higher priority to the thread that creates the foreground window than it does to other threads.
Syntax
HWND GetForegroundWindow(VOID);
Return Value
The return value is a handle to the foreground window. The foreground window can be NULL in certain circumstances, such as when a window is losing activation.
Function Information
Minimum DLL Versionuser32.dllHeaderDeclared in Winuser.h, include Windows.hImport libraryUser32.libMinimum operating systems Windows 95, Windows NT 3.1
See Also
Windows Overview, SetForegroundWindow
<DllImport("user32.dll", CharSet:=CharSet.Auto, ExactSpelling:=True)> _Public Shared Function GetForegroundWindow() As IntPtr End Function
[DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling=true)] public static extern IntPtr GetForegroundWindow();