public void Uninstall()
{
if (!IsInstalled)
{
return;
}
_handle.Dispose();
_handle = null;
_pinnedDelegate.Free();
}
/// <inheritdoc/>
/// <exception cref="Win32Exception"/>
public void Install()
{
if (IsInstalled)
{
return;
}
// prevent managed callback from being garbage collected
_pinnedDelegate = GCHandle.Alloc(Callback);
_handle = new SafeHookHandle(
SetWindowsHookEx(Type, Callback, IntPtr.Zero, 0));
if (_handle.IsInvalid)
{
throw new Win32Exception("SetWindowsHookEx error: " + Marshal.GetLastWin32Error());
}
}