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2 Visual Components Manuals

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4.10.3 Creating Keys on the Touch Display<br />

Displays which do not have panel keys are operated using a touch screen. This allows input of numeric and<br />

alphanumeric values, the operation of the application, as well as visualization process operation.<br />

Tools for entering numeric or alphanumeric values are automatically provided by <strong>Visual</strong> <strong>Components</strong> if the panel<br />

comes with a touch display.<br />

This section describes options for implementing key functions using the touch display.<br />

4.10.3.1 Inserting Touch−Operated Fields<br />

Two types of fields are available for touch displays:<br />

A touch field is inserted using the icon from the picture editor toolbar.<br />

After selecting the desired touch field, insert mode is activated and as many touch fields as desired can be<br />

placed on the current page.<br />

Both touch fields allow their pressed states to be edited along with the action which is triggered when they are<br />

activated.<br />

The difference between the two fields is their graphic appearance. The touch button allows a visible,<br />

configurable surface.<br />

Using the HotSpot, the user can create an invisible touch field whose appearance is configured later by the user.<br />

<strong>Visual</strong> <strong>Components</strong> only provides the surface.<br />

4.10.3.2 HotSpot<br />

Introduction to <strong>Visual</strong> <strong>Components</strong> 2.3<br />

The HotSpot is invisible during runtime and can be used to define areas and actions in bitmaps. The HotSpot is<br />

displayed in the editor as a dashed rectangle.<br />

378 4.10.3 Creating Keys on the Touch Display

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