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LabVIEW获取IMAQ Get Last Event坐标
2022-06-10 22:30:00 【LabVIEW开发】
LabVIEW获取IMAQ Get Last Event坐标
由于视觉开发模块在LabVIEW事件结构中不具有原生事件,例如可以检测按钮何时被按下的Value Change事件,因此该示例使用了IMAQ图像显示控件的MouseUp事件。在至少需要单击鼠标的IMAQ控件上触发任何手动事件。使用MouseUp事件检测到单击后,将调用具有函数GetLastEvent的IMAQ图像显示控件的调用节点,以返回具有该特定IMAQ控件的最后一个事件。
需要注意的是不是每种类型的image Display都可以。Image Display有三种不同的形式,分别如下图所示。经过测试发现,只有第一种是可以始终获取鼠标点击的当前位置。可以结合附件中的录像和源程序进行查看比对。

编辑
添加图片注释,不超过 140 字(可选)
无需硬件即可使用此示例VI
运行VI
在IMAQ图像显示控件中触发事件,例如,选择新的感兴趣区域(ROI)、缩放、单击等。
检查IMAQ图像显示控件下方发现的事件
更详细的内容,参加如下附件的介绍。
LabVIEW、LabVIEW开发、LabVIEW编程、LabVIEW程序
上文中提到的例子和资料,均在word中的附件里,可点击下载。进一步了解,可联系们。
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