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Chapter 14: Advanced program features
ActiveX controls
About ActiveX controls
ActiveX controls are Microsoft Windows-based applications that you can plug into projects. They are small, pre-
compiled, modular, and reusable. Web developers use ActiveX controls to extend the functionality of their HTML
pages. You can use ActiveX controls to extend the functionality of topics.
ActiveX controls work exclusively in browsers that support ActiveX technology. Microsoft Internet Explorer and the
HTML Help viewer support these controls. Netscape Navigator does not support ActiveX controls.
RoboHelp includes several ActiveX controls for HTML Help functionality, including link controls and HTML Help
controls. You can add other ActiveX controls. ActiveX controls can perform credit card transactions, spreadsheet
calculations and provide database communications.
Some ActiveX controls are included with projects. For example, the HHCTRL.OCX provided by Microsoft is a
required ActiveX control. It enables the table of contents, index, and full-text search.
Note: Copy ActiveX controls to and register them on user systems. ActiveX controls are not included in compiled CHM
files. For WebHelp and WebHelp Pro projects, Internet Explorer 4.0 or later supports ActiveX controls.
Add design-time controls
Note: This information applies to Microsoft HTML Help projects.
Insert the cursor in the topic where you want to place the control.
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Select Insert > HTML > Advanced > Design-Time Control.
From the list of controls, select a control to insert into the project.
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Click OK.
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Types of HTML Help ActiveX controls
When users open a topic with a calendar control, a calendar appears in the text. Users can select
Calendar Control
months and years to view and print.
Users can download the latest information from a database or the latest version of the application
Custom Buttons
with custom buttons.
When users open a topic that contains a banner, they are directed to the content. The banner lets you design
Banner
and test text, images, and icons to display at designated intervals in a topic.
Lets users draw charts that they can view and print. They can change the chart properties by selecting options
Chart
and check boxes. They can also enter data to display in the chart or graph.
Lets users enter data, for example, in an online test. Users can obtain test results and view results (the
Calculations
correct answers to each question).
Last updated 7/13/2012
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