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Provides support for NI data acquisition and signal conditioning devices.
Provides support for Ethernet, GPIB, serial, USB, and other types of instruments.
Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
修改时间 09-14-2016 09:45 AM
事件结构的触发条件如果是value change,这个value对应的为何一定要是写类型的变量,读类型的变量如果发生了value change,事件是不会响应的
修改时间 09-14-2016 04:02 PM
用户在面板上改变控件的数值, 只能用事件结构来俘获;
用户无法在面板上改变 indicator 的数值,
indicator 的数值改变只能是程序运行的结果, 所以没有必要用事件结构.
修改时间 09-16-2016 02:07 AM
读类型控件值的改变不是用户操作的结果,而是程序赋值的,不能使用“值改变”这种用户界面事件,因为它的值改变不是用户在界面操作的
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