改变形式的背景 [英] change background of form

问题描述

我想通过imagelist在表单加载时随机更改背景图片

但是如何..............

i want to change background image randomly on form load through imagelist
but how..............

推荐答案

还不够： http：// msdn.microsoft.com/en-us/library/system.windows.forms.control.backgroundimage.aspx [ ^ ]？



如果你需要什么更复杂，只需渲染表单表面的任何内容，覆盖虚拟方法 System.Windows.Forms.Control.OnPaint 或处理表单的事件油漆。如果图像应不时更改，请更改渲染中使用的数据（例如，图像列表中的图像索引）并调用 System.Windows.Forms.Control.Invalidate 。

-SA

Isn't that enough: http://msdn.microsoft.com/en-us/library/system.windows.forms.control.backgroundimage.aspx[^]?

If you need something more sophisticated, simply render whatever your want of the surface of the form overriding the virtual method System.Windows.Forms.Control.OnPaint or handling the form's event Paint. If the image should change from time to time, change the data used in rendering (index of the image in the image list, for example) and call System.Windows.Forms.Control.Invalidate.

—SA

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