// -------------------------------------------------------------------------
private bool ShouldBlockWheel(InputOptionsInfo info)
{
var options = _inputHookOptions.inputInfo;
if ((!options.wheelDown || !info.wheelDown) && (!options.wheelUp || !info.wheelUp))
{
return(false);
}
return(options.controlPressed == info.controlPressed &&
options.shiftPressed == info.shiftPressed);
}
/// <summary>
/// This is called on another thread
/// </summary>
/// <param name="info"></param>
/// <returns></returns>
private bool OnllMouseHook_WheelInputEvent(InputOptionsInfo info)
{
if (_inputHookOptions == null)
{
return(false);
}
lock (this)
{
if (!_nativeWindow.IsWindowInForeground() || !ShouldBlockWheel(info))
{
return(false);
}
// TODO: Consider running this callback on a separate thread
// so that the input doesn't become laggy
onMouseWheelBlocked?.Invoke(info);
return(true);
}
}
/// <summary>
///
/// </summary>
/// <param name="mouseLowLevelHook"></param>
/// <returns></returns>
private InputOptionsInfo ExtractInfo(MSLLHOOKSTRUCT mouseLowLevelHook)
{
var info = new InputOptionsInfo();
int delta = ((short)(mouseLowLevelHook.mouseData >> 16));
info.wheelUp = (delta == 120);
info.wheelDown = (delta == -120);
if (!info.wheelUp && !info.wheelDown)
{
return(info);
}
info.controlPressed =
(GetKeyState(VirtualKeyStates.VK_CONTROL) & 0x8000) > 0;
info.shiftPressed =
(GetKeyState(VirtualKeyStates.VK_SHIFT) & 0x8000) > 0;
return(info);
}
