bool IMessageFilter.PreFilterMessage(ref Message m)
{
var hWnd = NativeMethods.WindowFromPoint(WindowsMouseInput.GetPointLParam(m.LParam));
var ctl = Control.FromHandle(hWnd);
if (hWnd != IntPtr.Zero && hWnd != m.HWnd && ctl != null)
{
switch ((WM)m.Msg)
{
default: break;
case WM.MOUSEWHEEL:
#if DEBUG
DebugTracing.Trace(TraceFlags.ScrollEvents, true, " - {0}.WM.{1}: ", Name,
((WM)m.Msg));
#endif
if (ctl is HexgridPanel.HexgridPanel || ctl is HexgridExampleForm)
{
return(NativeMethods.SendMessage(hWnd, m.Msg, m.WParam, m.LParam) == IntPtr.Zero);
}
break;
}
}
return(false);
}
public bool PreFilterMessage(ref Message m)
{
if ((WM)m.Msg != WM.MouseHWheel && (WM)m.Msg != WM.MouseWheel)
{
return(false);
}
var hWnd = NativeMethods.WindowFromPoint(WindowsMouseInput.GetPointLParam(m.LParam));
var ctl = FromChildHandle(hWnd);
if (hWnd != IntPtr.Zero && hWnd != m.HWnd && ctl != null)
{
switch ((WM)m.Msg)
{
case WM.MouseHWheel:
case WM.MouseWheel:
Tracing.ScrollEvents.Trace(true, $" - {Name}.WM.{(WM)m.Msg}: ");
return(NativeMethods.SendMessage(hWnd, m.Msg, m.WParam, m.LParam) == IntPtr.Zero);
default: break;
}
}
return(false);
}
public bool PreFilterMessage(ref Message m)
{
if ((WM)m.Msg != WM.MOUSEHWHEEL && (WM)m.Msg != WM.MOUSEWHEEL)
{
return(false);
}
var hWnd = NativeMethods.WindowFromPoint(WindowsMouseInput.GetPointLParam(m.LParam));
var ctl = Control.FromChildHandle(hWnd);
if (hWnd != IntPtr.Zero && hWnd != m.HWnd && ctl != null)
{
switch ((WM)m.Msg)
{
case WM.MOUSEHWHEEL:
case WM.MOUSEWHEEL:
DebugTracing.Trace(TraceFlags.ScrollEvents, true, " - {0}.WM.{1}: ", Name, ((WM)m.Msg));
return(NativeMethods.SendMessage(hWnd, m.Msg, m.WParam, m.LParam) == IntPtr.Zero);
default: break;
}
}
return(false);
}