Help - Low Level CBTProc Hook

[theonlyoneleft1]

Is it possible to create a low level hook of the CBTProc Function (so that I can detect when an external window is minimized, etc)? If it's possible, how would I go about doing it?

Thanks in advanced!
-Eric

[crackersixx]

Windows hooks aren't the easiest thing to accomplish.

You will need to import some win32 functions, and do a google search on how to implement them for your desired methods.

SetWindowsHookEx
UnhookWindowsHookEx
CallNextHookEx

[DllImport("user32.dll", CharSet = CharSet.Auto,
CallingConvention = CallingConvention.StdCall)]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn,
IntPtr hInstance, int threadId);

[DllImport("user32.dll", CharSet = CharSet.Auto,
 CallingConvention = CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(int idHook);

[DllImport("user32.dll", CharSet = CharSet.Auto,
 CallingConvention = CallingConvention.StdCall)]
public static extern int CallNextHookEx(int idHook, int nCode,
Int32 wParam, IntPtr lParam);

[theonlyoneleft1]

The problem I'm running into is that it seems that hooking using the WH_CBT event with SetWindowsHookEx() will only apply to the current process, and does not seem to apply to external applications even when set up like a global hook. Is there any other way besides using the CBT hook that would allow me to be able to detect when any window is minimized?

[Luthv]

This is an old post I made for VB 6 but I think it still holds true for C# RegisterShellHook