/// <summary>
/// 引发 FilterMessageEvent 事件
/// </summary>
/// <param name="e">事件参数</param>
protected virtual void OnFilterMessage(MessageFilterEventArgs e)
{
if (this.FilterMessageEvent != null)
{
this.FilterMessageEvent(this, e);
}
}
private void AppClickFilter_FilterMessageEvent(object sender, MessageFilterEventArgs e)
{
if (this.ExcludeControls != null && this.ProcessFun != null)
{
List <IntPtr> childWindows = WindowsAPI.GetWindows(this.ExcludeControls.ToArray());
if (!childWindows.Contains(e.CurrentMessage.HWnd))
{
this.ProcessFun();
}
}
}
private void MouseWheelFilter_FilterMessageEvent(object sender, MessageFilterEventArgs e)
{
if (this.SendToControls != null)
{
foreach (Control c in this.SendToControls)
{
WindowsAPI.SendMessage(c.Handle, e.CurrentMessage.Msg, e.CurrentMessage.WParam, e.CurrentMessage.LParam);
}
e.StopMessage = false;
}
}
/// <summary>
/// 实现 IMessageFilter 接口, 当匹配到消息时引发 FilterMessageEvent 事件.
/// </summary>
/// <param name="m"></param>
/// <returns></returns>
public virtual bool PreFilterMessage(ref Message m)
{
bool result = false;
if (this.Enable)
{
//是否应过滤消息
bool isOk = true;
if (this.FilterMessages != null && this.FilterMessages.Count > 0)
{
if (!this.FilterMessages.Contains(m.Msg))
{
isOk = false;
}
}
if (this.TargetHandles != null && this.TargetHandles.Count > 0)
{
if (!this.TargetHandles.Contains(m.HWnd))
{
isOk = false;
}
}
if (isOk)
{
MessageFilterEventArgs e = new MessageFilterEventArgs();
e.CurrentMessage = m;
e.StopMessage = result;
this.OnFilterMessage(e);
result = e.StopMessage;
}
}
return(result);
}