Try with these parameter. Not tested. No Blitz+'s license
width = BLZPeekInt(buffer_image+28)
height = BLZPeekInt(buffer_image+32)
adrvideo = BLZPeekInt(buffer_image+76)
width = BLZPeekInt(buffer_image+28)
height = BLZPeekInt(buffer_image+32)
adrvideo = BLZPeekInt(buffer_image+76)