****¢ KOALA PAD/ATARI ARTIST PICTURE PRINTER¢ by TED BURGER.¢¢ Program will be found in this¢ May/June 1996 OL' HACKERS Newsletter.¢ (Ed. It is a program worthy of a¢ second printing! A.P.)¢¢ WHAT FRUSTRATION CAN DO TO YOU!¢ This program is a result of becoming¢ frustrated while printing pictures¢ from the Koala Pad system. The program¢ is written in Atari basic with many¢ machine language subroutines. Some of¢ the ML routines are my own and some of¢ them came from other authors. At the¢ moment I can't remember the sources. ¢ If you see some of your code in here,¢ Thanks. The program supports several¢ printers, at least Epson, Gemini, NEC,¢ and Prowriter. To modify it for a¢ different printer is very simple. You¢ can add the printer name to the list¢ around line 100, add the first letter¢ to the check in the same area. The¢ lines between 800 and 900 are where¢ the printer is set up. Add another¢ 'IF' statement with the proper¢ graphics control characters to set up¢ your printer.¢¢ OPERATION OF THE PROGRAM¢ The program will ask you for the¢ 'picture disk', picture files must end¢ with the '.PIC' extender. The screen¢ will display a list of the files on¢ the disk, up to 38 files. You make¢ your selection from the list. The¢ program will load the selected picture¢ from the disk. The picture will appear¢ in color at first then switch to black¢ and white. The bottom of the screen¢ will switch to text to prompt you. ¢ Below the text block is another line¢ of graphics, this shows the shade of¢ gray assigned to each of the four¢ color registers. To change the gray¢ shade of one of the color registers,¢ select which one 1-4. The prompt will¢ change and ask which shade you want.¢¢ WHAT THE NUMBERS MEAN¢ Black = 1 and white = 5. The¢ numbers 2,3,4 will give you different¢ shades of gray in order between black¢ and white. This will allow you to set¢ up the picture in shades of gray on¢ the display screen.¢¢ NOTE:¢ If you set color 3 and 4 to the¢ same shade, the text will not be¢ visible but things will still work. ¢ When you get the picture set up the¢ way you want it, a tap of the 'P' key¢ will send it to the printer. The¢ other choices you have here are:¢ 'M'enu will take you back to the list¢ of the picture files, 'V'eiw will¢ temporarily show you the entire¢ graphics screen just in case something¢ important is hidden by the text¢ block.¢¢ WYSIWYG¢ This is a case of 'WHAT YOU SEE¢ IS WHAT YOU GET', the gray scales from¢ the screen will be duplicated on the¢ printer.¢ HAVE FUN, TED BURGER ¢ ( E-N-D )¢¢
