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Contributor
Posts: 32
Registered: ‎03-19-2012
My Device: developer
My Carrier: Reliance

How to change Brightness in Blackberry programmatically

This Que belongs to Blackberry Application Development.

can any tell me how to change brightness/contrast of an image in Blackberry?

I tried something but It doesn't work for me.

 

 

I have used a class and implement a interface called ImageTonalityControll.

It has methods like getContrast(),setContrast(int val),getBrightness(),setBrightness(int val), and more.

 

following is the code I use-

LoginSuccessScreen is my class.  I have loaded one image in this class. But the there is no effect of changing Contrast on Image. Help me in this case..It will solve my other controls also. If U have your logic plz share....

 

 


private void changeImageContrast()

{

LoginSuccessScreen login=new LoginSuccessScreen(bp1);


login.setContrast(50);//set contrast value 50
contrast=login.getContrast();//reading contrast value to check the result
String s1=Integer.toString(contrast);
Dialog.inform(s1); //display the result on dialog

}