【机器视觉】 dev_close_window算子

- 日理万妓 2022-10-07 08:59 102阅读 0赞

## 00. 目录 ##

### 文章目录 ###

*   *  00. 目录
     *  01. 概述
     *  02. 签名
     *  03. 描述
     *  04. 注意
     *  05. 参数
     *  06. 结果
     *  07. 附录

## 01. 概述 ##

dev\_close\_window - 关闭活动图形窗口。

## 02. 签名 ##

`dev_close_window( : : : )`

## 03. 描述 ##

dev\_close\_window关闭由dev\_open\_window（一个合适的菜单条目a suitable menu entry）打开的活动图形窗口，或者关闭程序启动或加载新程序后自动由HDevelop创建的窗口（默认窗口）。

算子相当于在活动窗口的标题栏中按关闭按钮或从可视化菜单中选择适当的菜单项关闭。

图形窗口可以通过调用dev\_set\_window或通过按下所选图形窗口的工具栏中的激活按钮来激活。

**原文描述**：

dev\_close\_window closes the active graphics window which has been opened by dev\_open\_window, a suitable menu entry, or automatically by HDevelop itself at program start or after loading a new program (default window).

The operator is equivalent to pressing the Close button in the title bar of the active window or selecting the appropriate menu entry from the visualization menu.

A graphics window can be activated by calling dev\_set\_window or by pressing the Activate button in the tool bar of the selected graphics window.

## 04. 注意 ##

使用HDevelop的代码导出功能，为该算子生成的代码可能与相关的HALCON算子具有不同的行为。 有关将HDevelop图形算子导出为不同编程语言的代码的详细说明，请参阅“HDevelop User’s Guide” 中的Code Export -> General Aspects of Code Generation -> Graphics Windows一章。

## 05. 参数 ##

无

## 06. 结果 ##

dev\_close\_window总是返回2（H\_MSG\_TRUE）。

**HDevelop例程**

> measure\_screw.hdev Measure several features of a screw  
> find\_pads.hdev Find pads on a die  
> display\_operators.hdev Visualize results  
> dev\_open\_window.hdev Open graphics windows in HDevelop  
> dev\_close\_window.hdev Close graphics windows in HDevelop  
> clip\_contours\_xld.hdev Clip an XLD contour  
> advanced\_visualization\_settings.hdev Improve the visualization with transparency, anti-aliasing, and more

**程序示例**

* close all windows
    for i := 1 to 10 by 1
      dev_close_window ()
    endfor
    read_image (For5, 'for5')
    get_image_size (For5, Width, Height)
    dev_open_window (0, 0, Width, Height, 'black', WindowHandle)
    dev_display (For5)

## 07. 附录 ##

**7.1 机器视觉博客汇总**  
网址：[https://dengjin.blog.csdn.net/article/details/116837497][https_dengjin.blog.csdn.net_article_details_116837497]

[https_dengjin.blog.csdn.net_article_details_116837497]: https://dengjin.blog.csdn.net/article/details/116837497