Aku_Aku,first time i have used BMAP*.after that i have used image files directly to test.there was no difference.so i had decided to use image file directly.may be it can save a bit of ram.
may be i was wrong.but what is the advantage of using BMAP*.
what u are meaning by this :
bmapOn Bmap displayed when the button is switched on; gives also the size of the button.

when i am directly using images,is not compiler able to find the size of the button?only using BMAP* can give it.
i am from c++.pointer does not work in this way in c++.may be it is a matter of compiler.i do not know about compiler's aecitecture.

all though,i have done it.but it is not the way i am looking for.