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Creating touchable icons with GAPI

Posted: 20 Dec 2010     Print Version  Bookmark and Share

Keywords:Renesas  graphics application programming interface  bitmap 

This application note provides application examples that show how to implement interactive graphics on an LCD panel. Renesas provides a standard set of functions for creating and manipulating graphics and text on a TFT-LCD panel. These functions are referred to as the graphics application programming interface (GAPI). This document can be used with any available Direct Drive LCD Demo PCB from Renesas.

This document discusses a sample code that uses GAPI calls to access the bitmap in memory and place its first icon at specific coordinates on the screen. This code also maps the coordinates to a touchable area based on the size of the icon, and specifies which function will be called in the event that the icon is touched. Each time the icon is touched, the image will toggle between "On" and "Off".

View the PDF document for more information.





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