如何访问/获取OnPaint"PaintEventArgs"在OnLeave中的"EventArgs"中 [英] How to access/get OnPaint "PaintEventArgs" in OnLeave "EventArgs"

问题描述

我想从离开事件(OnLeave)的PaintEvent(OnPaint)中获取参数.任何想法如何访问/获取它们.

I want to get the arguments from PaintEvent (OnPaint) in the Leave Event (OnLeave). Any idea how to access/get them.

推荐答案

如果要在事件触发时进行绘画操作，则
使用 Invalidate()方法和一个标志，该标志现在将告诉您的绘画事件，有关是否应运行if-else块的事件离开.

if you want to do something in paint when leave event fire then
use Invalidate() method and a flag which will tell your paint event now, leave event regarding if-else block should be run or not.

boolean flag = false;

Leave event ...
{
   flag = true;
   Mycontrol1.Invalidate(); // it will fire paint event of Mycontrol1
}

MyControl1 paint event ...
{
     if (flag==true)
     {
        //draw something
        flag = false;
     }
}

祝您编程愉快！
:)

Happy coding!
:)

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