How to flash screen programmatically ?
After long time of searching I have to give up and ask.

Is it possible to **flash screen** (just like in taking screenshot using home button + power button) ?

If yes, then how ?

Thanks in advance for answers.
How to flash screen programmatically ?
===

After long time of searching I have to give up and ask.

Is it possible to **flash screen** (just like in taking screenshot using home button + power button) ?

If yes, then how ?

Thanks in advance for answers.