I have installed Lax 1.6.4, but I cannot fine any refrernce to OPM in the list of packages available for install, or any likely sounding files in the Lazarus directories.
Also, I went to wiki.freepascal.org/BGRABitmap#Download, and the files available there were called "oldbgrab..." which sounds as though they are not current. Also there is LazPaint which I downloaded, but that complains that BGRAB.. files are not present.
Sorry for the dumb questions, but I'm a bit hazy on packages and how to use them, and with what things are needed to get BGRABitmap installed and usable. I'm probably missing some small thing which is incredibly obvious to those more familiar with this. I'd appreciate bit of advice in simple words.