Chapter 5Adding Target-Specific Documentation© National Instruments Corporation5-7 1,Target Distribution 1, Guide5.(Optional) Enter a .htm or .html filename or index keyword in the Help tag text box if the Help path text box links to a compiled help file. If you want to specify a topic in the compiled help file, the topic .htm or .html filename must match a name of an individual HTML file in the compiled help file. If you want to specify an index entry, the index keyword must match a keyword in the index of the compiled help file.6.Click the OK button to save the changes. When you move the cursor over the VI icon, a blue Detailed Help link appears in the Context Help window, and the Detailed Help button is enabled.To link VIs to HTML files or compiled help files programmatically, you can use the VI properties Help:Document Path and Help:Document Tag in a Property Node and the Help functions on the Help palette, available on the Functions palette when the VI is in a My Computer or Main Application Instance.Linking Dialog Box Help Buttons to Compiled Help Files or HTML FilesDialog boxes with more than one control or indicator usually include a Help button that opens a help topic explaining the objects in the dialog box and how to use them.Linking to a Topic in a Compiled Help FileYou can wire a Boolean button to a Case or Event structure that runs the _LaunchHelp.vi, available in the labview\help directory.Wire the name of the .htm or .html file you want to link to within a compiled help file to the HTML filename input of _LaunchHelp VI. Wire the name of the compiled help file containing the topic to the CHM or HLP filename input.NoteYou must put the compiled help file in the labview\help directory to use the _LaunchHelp VI. Linking to an Independent HTML FileYou also can wire a Boolean button to a Case or Event structure containing the Open URL in Default Browser VI if you want to open the .htm or .html file in the default browser. NoteYou must enter the whole path to the .htm or .html file you want to open.