public void UninstallHook()
{
if (KeyboardHookLib._hHookValue == 0 || !KeyboardHookLib.UnhookWindowsHookEx(KeyboardHookLib._hHookValue))
{
return;
}
KeyboardHookLib._hHookValue = 0;
}
public void InstallHook(KeyboardHookLib.ProcessKeyHandle clientMethod)
{
KeyboardHookLib._clientMethod = clientMethod;
if (KeyboardHookLib._hHookValue != 0)
{
return;
}
this._KeyBoardHookProcedure = new KeyboardHookLib.HookHandle(KeyboardHookLib.OnHookProc);
this._hookWindowPtr = KeyboardHookLib.GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName);
KeyboardHookLib._hHookValue = KeyboardHookLib.SetWindowsHookEx(13, this._KeyBoardHookProcedure, this._hookWindowPtr, 0);
if (KeyboardHookLib._hHookValue != 0)
{
return;
}
this.UninstallHook();
}
private static int OnHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
KeyboardHookLib.HookStruct structure = (KeyboardHookLib.HookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookLib.HookStruct));
if (KeyboardHookLib._clientMethod != null && wParam == 256)
{
bool handle = false;
KeyboardHookLib._clientMethod(structure, out handle);
if (handle)
{
return(1);
}
}
}
return(KeyboardHookLib.CallNextHookEx(KeyboardHookLib._hHookValue, nCode, wParam, lParam));
}