C # Implementation of mouse keyboard monitoring and shielding

The running interface is as follows:

Two notes:

Implementation of this function in C + + is very simple, there are many classic examples can be achieved, in C # There are many problems will occur.

For the hook is not familiar with the knowledge can refer to another article I reproduced: http://www.cnblogs.com/hocylan/articles/1033895.html[Microsoft Hook Technical Topic]

Three approximate steps

The main thing is to call the Windows API

Step One: Install hooks: SetWindowsHookEx (wh_codes idhook, HookProc lpfn,intptr pinstance, int threadId);

Step two: Callback and processing CallNextHookEx (IntPtr phookhandle, int ncode,int32 wParam, IntPtr lParam);

Step three: Complete the ordinary business process other processes

Apply the encapsulated hooks to the system ....

private void start_Click(object sender, EventArgs e)
　　　　{hook_Main.InstallHook("1");}
　　　　private void stop_Click(object sender, EventArgs e)
　　　　{this.hook_Main.UnInstallHook();}
　　　　private void stopkeyboard_Click(object sender, EventArgs e)
　　　　{ hook_Main.InstallHook("2"); }

Fourth step: Remove Hook UnhookWindowsHookEx (IntPtr phookhandle);