如何从JFrame屏幕截图中删除标题栏? [英] How to remove the title bar from a JFrame screenshot?

问题描述

我正在通过双重缓冲"方法捕获JFrame的屏幕截图，如下所示:

I'm capturing a screenshot image of a JFrame via a "double buffering" approach, per below:

public BufferedImage getScreenshot() {      
  java.awt.Dimension dim = this.getPreferredSize();         
  BufferedImage image = new BufferedImage(dim.width, dim.height, BufferedImage.TYPE_INT_RGB);            
  this.paint(image.getGraphics());      
  return image;     
}

其中this扩展JFrame.我得到的图像在标题栏所在的顶部有一个空白条.在没有为标题栏分配额外空间的情况下，捕获JFrame内容图像的最直接方法是什么?

where this extends JFrame. The image that I get has a blank strip along the top where the title bar was. What's the most straightforward way to capture an image of the contents of the JFrame without the extra space allocated for the title bar?

推荐答案

您应该可以使用屏幕图像类.只需将框架的内容窗格(如果有菜单，则指定为根窗格)作为想要图像的组件.

You should be able to use the Screen Image class. Just specify the content pane of the frame (or the root pane if you have a menu) as the component you want the image of.

或者您的基本代码应该起作用，再次将内容窗格(或根窗格)指定为要绘制的组件，而不是框架itelf.

Or your basic code should work, again just specify the content pane (or root pane) as the component you want to paint, not the frame itelf.

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