National instruments labwindows cvi

Reported In. Reported In shows products that are verified to work for the solution described in this article. This solution might also apply to other similar products or applications. File not found Build failed. When I try to compile the program, I receive the following error message:. Your browser may include features that can help translate the text. This content is not available in your preferred language.

Reported In. Reported In shows products that are verified to work for the solution described in this article. This solution might also apply to other similar products or applications. The function returns a file handle of type interger which you can use to determine whether or not a file actually exists. If the file does not exist, then the file handle will be negative. To prevent the error window from appearing, you can disable the library errors by deselecting library errors on the Run menu: Run » Break-on » Library Errors.

Click the Test button to verify that the task works properly. Specify a task name, create task function, and a target directory. Task Name --The name you associate with the task as well as the prefix to the.

Create Task Function --The name of the function that you will call to create and configure the task programmatically. Target Directory --The directory where the three generated files will be stored. Figure 3. Click OK to generate the task. The generated source and header files define the task creation function, which contains the code necessary to create and configure the specified task programmatically. The generated task description file. Opening the.

These files are all linked to the task, so any changes you make to your task from the DAQ Assistant are automatically reflected in the generated code. You also must include its header file into your main project file. See Figure 5 for an example. For example, if you are reading in data from your analog input channels, you might want to use the DAQmxReadAnalogF64 function.

This function stops the task and clears the task from memory.