本文介绍了没有从代码中画出任何线条的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
你好,
为什么没有在屏幕上用以下代码绘制一条线??
Hi there,
Why doesn''t a Line get drawn on the screen with below code???
//Declaration
public Graphics obj_Graphics;
private Bitmap obj_Bitmap;
//Coding
obj_Bitmap = new Bitmap(1000, 1000);
obj_Graphics = Graphics.FromImage(obj_Bitmap);
obj_Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 5), 100, 500, 400, 500);
在此先感谢...
Thanks in advance...
推荐答案
obj_Graphics = Graphics.FromImage(obj_Bitmap);
如果要在屏幕上绘制它,请处理窗体或窗体上的面板的Paint事件,并使用在EventArgs参数中处理的Graphics对象:
If you want to draw it i=on teh screen, then handle the Paint event for your form, or a panel on your form and use the Graphics object you are handled in the EventArgs parameter:
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 5), 100, 500, 400, 500);
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