Brightsign Object Reference Manual (FW 5.1) Manual de usuario descargar pdf (Pagina 124)

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roTouchScreen

This object allows you to accept events from touchscreen panels or mice. Not all touchscreens are supported. However,

we are always working on more driver support. Please see this FAQ for a full list of supported touchscreens, or

contact sales@brightsign.biz if you want to know whether a specific touch-screen model supported.

An roTouchScreen instance responds to the clicks of a USB mouse in the same way it responds to touch events on a

touchscreen.

To use a touchscreen, follow these general steps:

1. Create an roTouchScreen object.

2. Use SetPort() to specify which roMessagePort should receive touch events.

3. Define one or more touch regions.

a. A touch region may be rectangular or circular.

b. When someone touches the screen anywhere inside the area of a touch region, an event will be sent to the

message port.

4. Process the events.

Note: If touch areas overlap such that a touch hits multiple regions, an event for each affected region will be sent.

The roTouchScreen object supports rollover regions. Rollovers are based around touch regions. When a rectangular or

circular region is added, it defaults to having no rollover. You can enable a rollover using the touch region’s ID and

specifying an on and off image. Whenever the mouse cursor is within that region, the on image is displayed. In all other

cases, the off image is displayed. This allows buttons to be highlighted as the mouse cursor moves over them.

Interfaces: ifTouchScreen, ifSetMessagePort, ifTouchScreenCalibration, ifSerialControl

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Brightsign Object Reference Manual (FW 5.1) Manual de usuario Pagina 124