/// <summary>
/// Disable keyboard hooking.
/// </summary>
/// <returns>True if disabled correctly.</returns>
public static bool Disable()
{
if (Enabled == true)
{
try
{
Hooks.UnhookWindowsHookEx(hHook);
Enabled = false;
return(true);
}
catch
{
Enabled = true;
return(false);
}
}
else
{
return(false);
}
}
/// <summary>
/// Start the keyboard hook.
/// </summary>
/// <returns>True if no exceptions.</returns>
public static bool Enable()
{
if (Enabled == false)
{
try
{
using (Process curProcess = Process.GetCurrentProcess())
using (ProcessModule curModule = curProcess.MainModule)
hHook = Hooks.SetWindowsHookEx((int)Hooks.HookType.WH_KEYBOARD_LL, hookproc, Hooks.GetModuleHandle(curModule.ModuleName), 0);
Enabled = true;
return(true);
}
catch
{
Enabled = false;
return(false);
}
}
else
{
return(false);
}
}
private static IntPtr Filter(int nCode, IntPtr wParam, IntPtr lParam)
{
bool result = true;
if (nCode >= 0)
{
if (wParam == (IntPtr)Hooks.WM_KEYDOWN ||
wParam == (IntPtr)Hooks.WM_SYSKEYDOWN)
{
int vkCode = Marshal.ReadInt32(lParam);
if ((Keys)vkCode == Keys.LControlKey ||
(Keys)vkCode == Keys.RControlKey)
{
Control = true;
}
else if ((Keys)vkCode == Keys.LShiftKey ||
(Keys)vkCode == Keys.RShiftKey)
{
Shift = true;
}
else if ((Keys)vkCode == Keys.RMenu ||
(Keys)vkCode == Keys.LMenu)
{
Alt = true;
}
else if ((Keys)vkCode == Keys.RWin ||
(Keys)vkCode == Keys.LWin)
{
Win = true;
}
else
{
result = OnKeyDown((Keys)vkCode);
}
}
else if (wParam == (IntPtr)Hooks.WM_KEYUP ||
wParam == (IntPtr)Hooks.WM_SYSKEYUP)
{
int vkCode = Marshal.ReadInt32(lParam);
if ((Keys)vkCode == Keys.LControlKey ||
(Keys)vkCode == Keys.RControlKey)
{
Control = false;
}
else if ((Keys)vkCode == Keys.LShiftKey ||
(Keys)vkCode == Keys.RShiftKey)
{
Shift = false;
}
else if ((Keys)vkCode == Keys.RMenu ||
(Keys)vkCode == Keys.LMenu)
{
Alt = false;
}
else if ((Keys)vkCode == Keys.RWin ||
(Keys)vkCode == Keys.LWin)
{
Win = false;
}
else
{
result = OnKeyUp((Keys)vkCode);
}
}
}
return(result ? Hooks.CallNextHookEx(hHook, nCode, wParam, lParam) : new IntPtr(1));
}