Progress
Help Development
Guide
Accessing Online Help with a Help Button
Context-sensitive help should be made available when a user wants to learn about the purpose of a particular window, dialog box, or widget. You can code the Progress application to display a Help button, as shown in Figure 1–8. When the user chooses the button, the help viewer displays the help topic for the current window or dialog box.
Figure 1–8: Dialog Box with a Help Button
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For example, when the user chooses the Help button in the Procedure Editor Buffer Information dialog box, the user sees context-specific help for that dialog box, as shown in Figure 1–9.
Figure 1–9: Context-sensitive Help for the Buffer Information Dialog Box
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As with menu items, you attach triggers to buttons with the CHOOSE event. In this example, a help trigger is attached to the Help button. In the following code example, a help trigger executes when the user chooses a Help button to access help information from an application window or dialog box:
You can write a help trigger for a field-level widget, a frame, a dialog box, a window, or an application. The following code example demonstrates a help trigger that executes when the current application window has input focus and the user presses HELP:
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