File Dialog Box Extension List Is Empty When Calling From LabWindows/CVI

Issue Details

When I try to open the file select dialog box with a custom file extension, the Windows 7 File Explorer extension list is empty. This happens only on the production machine it works fine in the development machine.

Solution

The issue comes from the windows file explorer File name extensions settings, when it is not checked the File Explorer won't show extensions and LabWindows/CVI will not be able to show the list of extensions. In order to overcome this issue check the File name extensions box from File Explorer > View > File name extensions, or instead of 

FileSelectPopupEx (directory, "*.xml", "datafile",
                               "This is a File Select Popup",
                               VAL_SAVE_BUTTON, 0, 0, filename)

, use 

FileSelectPopupEx (directory, "xml file (*.xml);", "datafile",
                               "This is a File Select Popup",
                               VAL_SAVE_BUTTON, 0, 0, filename)