/// <summary>
/// 处理鼠标左键按下消息
/// </summary>
/// <param name="m">消息</param>
protected virtual void WmLButtonDown(ref Message m)
{
UIControl control = this.FindUIChild(Util.GetMousePosition(m.LParam));
this.CaptureControl = control = (control != null && control.Enabled) ? control : null;
if (control != null)
{
control.WndProc(ref m);
m.Result = NativeMethods.TRUE;
}
}
/// <summary>
/// 处理鼠标移动消息
/// </summary>
/// <param name="m">消息</param>
protected virtual void WmMouseMove(ref Message m)
{
if ((Control.MouseButtons & MouseButtons.Left) == MouseButtons.None)//未按下左键
{
this.WmLButtonDown(ref m);
}
else//左键按下
{
UIControl lastAccess = this.CaptureControl;
if (lastAccess != null)
{
lastAccess.WndProc(ref m);
m.Result = NativeMethods.TRUE;
}
}
}