Archives by Tag 'control'
A Better Way to Program Controls of the Same Kind in LabWindows/CVI
Usually, there are only one or two controls of the same kind in a normal VI(Virtual Instruments, computer based measurements and automation systems) application. And, we can write the callback functions of these controls one by one in LabWindows/CVI. But, if there are more than four in number of the same kind of control, it’ll [...]
Three Principles to Follow when Design LabVIEW Applications
When using LabVIEW to develop huge and complex applications, we would encounter many problems not only the same as we use text based programming languages but also some problems which are unique for LabVIEW. LabVIEW is a graphic based programming language, it free us from the worry of syntax error and memory problems, but on [...]
Create a Tri-State LED Indicator in LabVIEW
Under some conditions, the traditional boolean LED indicator is not enough to indicate the test result. For example, before the test finish, the status of current UUT(Unit Under Test) is unknown, which value should be displayed, the green TRUE with the meaning of success or red FALSE with the meaning of fail? Both are unacceptable, [...]
Create a Custom Control in LabVIEW
Sometimes, the built-in controls or indicators are not enough for our applications. Then we must use custom controls and indicators to extend the built-in set of front panel objects of LabVIEW. We also can save the custom control or indicator you created in a directory or LLB and use the custom control or indicator to other applications. And we [...]