n-waters@NIMR.MRC.AC.UK (Nick Waterson) (03/03/90)
Hi there all, A short while ago I was asking about printing with GDOS, thanks to all who replied. I can now print text and vdi graphic commands, but I am confused about printing bit images. By the way I'm using GFA Basic 3. The only way I haveachieved anything is to load the pic a byte at a time and plot its colour. I am working in monochrome. This results in a postage stamp print out of my pic. I then proceeded to think about scaling the pic and ended up in total confusion. Hence anymore help would be gratfully appreciated. My second query is about IMG files. I know they contain a header which has the x,y info etc. However, how do you set memory up so that pixel values off the screen do not wrap round to the next line ie how do you increase the page width in memory. Many thanks, Nick.