rassilon@eddie.MIT.EDU (Brian Preble) (07/23/87)
I am writing a program in Turbo Pascal in which I need to read in lines of
text containing ANSI escape sequences. I have no problem reading these,
however, WRITELN will not behave correctly. Instead of clearing the screen,
or changing the text colors, or whatever, ESCAPE is displayed as a left
arrow. How do I get Turbo to do the right thing? (Do I need to send the
text in raw mode or something?)
-- Rassilon
--
Rassilon (Brian Preble)
UUCP: ...{ihnp4 | decvax!genrad}!mit-eddie!rassilon
Internet: rassilon@eddie.mit.eduayac071@ut-ngp.UUCP (William T. Douglass) (07/23/87)
In article <6365@eddie.MIT.EDU> rassilon@eddie.MIT.EDU (Brian Preble) writes: >I am writing a program in Turbo Pascal in which I need to read in lines of >text containing ANSI escape sequences. I have no problem reading these, >however, WRITELN will not behave correctly. Instead of clearing the screen, >or changing the text colors, or whatever, ESCAPE is displayed as a left >arrow. How do I get Turbo to do the right thing? (Do I need to send the >text in raw mode or something?) If you are using the PC-DOS version of TP, then write (should avoid writeln, unless you want a CR-LF written to the screen) is being implemented through the bios screen handler, bypassing DOS and the ANSI.SYS driver. I suggest trying the {$P1} compiler directive, which appears to force TP to use the DOS i/o calls for screen output. I ran into this when trying to implement a ^C handler in a TP program. Seems that the IBM-PC version gets its input without consulting DOS, and handles the ^C character itself. Therefore, setting the int23h address did nothing, as DOS never saw the break character. Re-compiling with the {$Gn} and {$Pn} directives cleared this up. Also, using the generic MS-DOS version proved successful, but left me without all the PC-specific goodies. Hope this is some help. Bill Douglass ayac071@ngp.UUCP (or whatever)