FAQ-1087 Does Symbian's javax.microedition.lcdui.Canvas implement double buffering?


FAQ-1087 Does Symbian's javax.microedition.lcdui.Canvas implement double buffering?

» Symbian OS » Developer Knowledgebase » FAQ-1087

Classification:	Java	Category:	J2ME MIDP
Created:	07/12/2004	Modified:	07/12/2004
Number:	FAQ-1087
Platform:	Symbian OS v7.0, Symbian OS v7.0s, Symbian OS v8.0

Question:
Does Symbian's javax.microedition.lcdui.Canvas implement double buffering?

Answer:
Yes, javax.microedition.lcdui.Canvas is rendered with double buffering on Symbian OS. Therefore the isDoubleBuffered method of Canvas returns true.

Note as a consequence developers should not implement their own double buffering via createImage, drawImage etc as this will incur an additional overhead.