keyboard hook - Blocking shortcut keys using c# -

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I use the code given below to disable Alt + Tab, Alt + Esc, Ctrl + Esc, and Windows key Is doing it, but in some way it is not working. Please help me improve it. 

  Nameslorn Block Shortcuts {Public Partial Category Form 1: Form {Public Form 1 () {Initial Group (); } Private Representative Int Livelweel ChebierPcrilGetGet (Int Encoded, Int. Vapam, Ref KBDLLHoccard ElPiram); [DllImport ( "user32.dll", EntryPoint = "SetWindowsHookExA", charset = CharSet.Ansi)] private static extern int SetWindowsHookEx (int IdHook, LowLevelKeyboardProcDelegate Lpfn, integer hmod, integer dwThreadId); [DllImport ("user32.dll")] Private static extern int UnhookWindowsHookEx (int hHook); [DllImport ( "user32.dll", EntryPoint = "CallNextHookEx", charset = CharSet.Ansi)] private static extern int CallNextHookEx (integer hHook, int nCode, int wParam, ref KBDLLHOOKSTRUCT lParam); Const int WH_KEYBOARD_LL = 13; Private Ind IntLLKey; Personal KBDLLHOOKSTRUCT lParam; Personal structure KBDLLHOOKSTRUCT {Public Inc. vkCode; Int scanCode; Public integer flags; Int time; Int dwExtraInfo; } Private Ent Loyalwell Kebard Proc (Int Encoded, Int WAPRAM, Referee KBDLLHoccard LPRAM) {Bull Blain at = Falls; Switch (wParam) {Case 256: Case 257: Case 260: Case 261: // Alt + Tab, Alt + Esc, Ctrl + Esc, Windows Key if (((lParam.vkCode == 9) & amp; (LParam .flags ==32)) || ((lParam.vkCode == 27) & amp; (lParam.flags ==32)) || ((lParam.vkCode == 27) & amp; Amp; (lParam.flags == 0)) || ((lParam.vkCode == 91) & amp; (lParam.flags == 1)) || ((lParam.vkCode == 92) & amp; ; & Amp; (lParam.flags == 1)) || ((true) & amp; amp; (lParam.flags ==32)) {blnEat = true; }                     break; } If (blnEat) return 1; And return colonaxacqux (0, encoded, WPMAM, referee wrap); } Private Zero Keyboard Hook (Object Sender, EventAurge E) {intLLKey = SetWindowsHookEx (WH_KEYBOARD_LL, New Low Level KeyboardPracleGate (Low Level Keyboard Board), System Time Periodic Interp Services Mistle Gatehinsteens (System. Reflections.execxeterGet Accringing Assembled () GetModules () [0]). ToInt32 (), 0); } Private Zero Release Keyboard () {intLLKey = UnhookWindowsHookEx (intLLKey); } Private Zero checkbox 1 checked (object sender, event AGS E) {if (check box 1. checked) keyboardhook (this, e); Other release keyboardboards (); }}}

The code is working fine in general. You see the possibility of running under Visual Studio debugger, which are usually running within Visual Studio.

This means that the call to System.Reflection.Assembly.GetExecutingAssembly () your keyboard hook () function vshost.exe instead of your executable Returning, as a result, the desired effect of installing a hook for your executable can not be obtained.

So to see your code effectively, you have to do one of the following:

  • Run it outside Visual Studio
  • Run in Visual Studio, but through it

    • Note that you can do but please know about potential side effects, quotes:

    when The hosting process is disabled, so many debugging features are unavailable or the experience decreases. For more information, see.


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