DavidWall

Thanks randallc, very much appreciated - sorry for delay - was working a few night shifts & had little time to spare thanks again dave wall

Actually - No !! The sample macro for the calculator doesn't work as follows. The specified control, C1, could not be found. The macro will be aborted. dave

Thanks Guys, Just shows how much I use a calculator - I've never noticed the view button on the calculator & didn't realise it had a scientific mode with a tan function. Ah well - back to the macro code. dave wall

I need to rotate slightly some images - there is a built in function of IrfanView which lets me type in a positive or negative angle to rotate an image. I can use getmouseposition to work out adjacent and opposite sides of a right angle triangle but then need Tan function to calculate the angle. I see randallc has made up some wonderful macros for this type of stuff but am totally at a loss as to how to incorporate them into my simple task. heeelllppp !! tia dave wall