winform gmap 随着鼠标滚动，改变字体大小

Question

想实现第一幅图不显示自定义的字体，随着鼠标滚动在显示字体，向第二幅图一样

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Answer 1

已实现

     private void gMapControl1_OnMapZoomChanged()
        {
            if (_my_mark != null)
            {
                if (gMapControl1.Zoom >= 7)
                {
                    for (int i = 0; i < _my_mark.Markers.Count; i++)
                    {
                        ((GMarkerArrow)_my_mark.Markers[i]).StationName = ((GMarkerArrow)_my_mark.Markers[i]).StationName1;
                    }
                }
                else {

                    for (int i = 0; i < _my_mark.Markers.Count; i++)
                    {
                        ((GMarkerArrow)_my_mark.Markers[i]).StationName = null;
                    }
                }
            }

        }

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Answer 2

Hi,

如果你的问题已经解决，请及时标记有用的回复作为答案，这样会帮助其他遇到相同问题的人。

Best Regards,

Hart

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Answer 3

 请问   _my_mark   这个是怎么定义的？

Answer 4

你这"测试"两个字怎么显示出来的啊，请指教。