您必须自己管理-图片可以不能以这种方式加载:发出load命令，然后加载整个图像，然后完整显示.可以通过使用Paint事件来伪造它，并且只显示已加载图像的一部分，但是我不知道为什么您会这样做.

You would have to manage that yourself - Images do not load in such a fashion: you issue the load command, and the whole image is loaded, and then displayed in it''s entirety. It is possible to fake it, by using the Paint event, and only displaying a portion of the loaded image, but why you would ant to do that, I do not know.