看看鼠标左键在事件的OnMouseMove按住 [英] See if left mouse button is held down in the OnMouseMove event

问题描述

我如何检测是否鼠标左键被按下了的OnMouseMove 事件控制？

How do I detect if the left mouse button is being held down in the OnMouseMove event for a control?

推荐答案

您事件处理程序的的OnMouseMove事件应该免费获赠 MouseEventArgs 应该告诉你，如果按下左键

Your eventhandler for the OnMouseMove event should recieve a MouseEventArgs that should tell you if the left button is pressed

private void mouseMoveEventHandler(object sender, MouseEventArgs e)
{
   if(e.Button == MouseButtons.Left)
   {
     //do left stuff
   }
   else 
   {
     // do other stuff
   }
}

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