public virtual void Subscribe()
{
if (_hooksHandle != 0)
{
return;
}
lock (_padLock)
{
// install Mouse hook only if it is not installed and must be installed
if (_hooksHandle == 0)
{
_hooksProc = HooksProc;
//install hook
_hooksHandle = ChoUser32.SetWindowsHookEx(
(int)_hookType,
_hooksProc, IntPtr.Zero,
//Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),
0);
//If SetWindowsHookEx fails.
if (_hooksHandle == 0)
{
ChoWin32Exception.CheckNThrowException();
}
}
}
}
public virtual void Unsubscribe()
{
if (_hooksHandle == 0)
{
return;
}
lock (_padLock)
{
// install Mouse hook only if it is not installed and must be installed
if (_hooksHandle != 0)
{
//install hook
int result = ChoUser32.UnhookWindowsHookEx(_hooksHandle);
_hooksHandle = 0;
//If SetWindowsHookEx fails.
if (result == 0)
{
ChoWin32Exception.CheckNThrowException();
}
}
}
}