private static bool HandleMouseEvent(NativeMouseEvent eventCode, MousePosition pos, int wheelDelta)
{
switch (eventCode)
{
case NativeMouseEvent.WM_MOUSEMOVE:
OnMouseMove?.Invoke(pos);
return(true);
case NativeMouseEvent.WM_LBUTTONDOWN:
OnMouseLeftDown?.Invoke(pos);
return(true);
case NativeMouseEvent.WM_LBUTTONUP:
OnMouseLeftUp?.Invoke(pos);
return(true);
case NativeMouseEvent.WM_RBUTTONDOWN:
OnMouseRightDown?.Invoke(pos);
return(true);
case NativeMouseEvent.WM_RBUTTONUP:
OnMouseRightUp?.Invoke(pos);
return(true);
case NativeMouseEvent.WM_MOUSEWHEEL:
OnMouseWheel?.Invoke(pos, wheelDelta);
return(true);
default:
return(false);
}
}
private static int HandleLowLevelHookProc(int code, IntPtr wParam, IntPtr lParam)
{
if (code < 0)
{
return(Win32API.CallNextHookEx(hookPtr, code, wParam, lParam));
}
NativeMouseEvent eventCode = unchecked ((NativeMouseEvent)wParam);
MSLLHOOKSTRUCT data = MSLLHOOKSTRUCT.CreateFromPtr(lParam);
MousePosition pos = new MousePosition {
x = data.pt.x, y = data.pt.y
};
int wheelDelta = unchecked ((short)((long)data.mouseData >> 16));
if (HandleMouseEvent(eventCode, pos, wheelDelta) && InterceptMessages)
{
return(1);
}
else
{
return(Win32API.CallNextHookEx(hookPtr, 0, wParam, lParam));
}
}