BBS: Inland Empire Archive Date: 02-03-93 (09:02) Number: 373 From: LAWRENCE GORDON Refer#: NONE To: DENIS DUBUC Recvd: NO Subj: File viewer Conf: (2) Quik_Bas
> I would like to know how to the Command for viewing a > text file that is more then 25 line long by having a > thing like press a key to continue without having the > file scrolling down to the END.The only thing that > I've been able to do so far is using the | MORE > Command, but there must be another way to control the > text, I checked the 3 Books that I have but I haven't > find anything. Could someone please help me? Here's one that works in PowerBASIC. You would only need to modify a few lines to change it over to QuickBasic. It has the ability to scroll up or down, but not left or right. =================================start========================= rem ** viewer.bas ** defint a-z %false = 0 %true = NOT %false uparrow = 18432 downarrow = 20480 pgup = 18688 pgdn = 20736 home = 18176 endkey = 20224 escape = 27 dim a$(1:2000) filename$ = command$ on error goto fileerror call fileread (filename$, linecount%, a$()) on error goto 0 cls lineptr% = 1 do color 0,3 locate 1,1 print "Line:";left$(str$(lineptr%)+space$(7),8); print "File: ";left$(filename$+space$(19),19); print "Quit: ESC";space$(3); print "Move ";chr$(24);" ";chr$(25);" PGUP PGDN HOME END "; color 7,1 for i% = 0 to 23 locate i% + 2, 1 print left$(a$(i% + lineptr%)+ space$(80),80); next i% select case keycode% case uparrow if lineptr% > 1 then lineptr% = lineptr% - 1 end if case downarrow if lineptr% < linecount% then lineptr% = lineptr% + 1 end if case pgup if lineptr% > 1 then lineptr% = lineptr - 24 if lineptr% < 1 then lineptr% = 1 end if end if case pgdn if lineptr% < linecount% - 24 then lineptr% = lineptr% + 24 if lineptr% > linecount% then lineptr% = linecount% end if end if case home if lineptr% > 1 then lineptr% = 1 end if case endkey if lineptr% < linecount% - 24 then lineptr% = linecount% - 24 end if case escape quitflag% = %true case else updateflag% = %false end select loop until quitflag% color 7,0 end fileerror: print print "Usage: VIEWER filename.ext" system resume next sub fileread (filename$, linecount%, a$()) STATIC filenumber% = freefile open filename$ for input as filenumber% for i% = lbound(a$(1)) to ubound(a$(1)) line input #filenumber%, a$(i%) linecount% = i% if eof(filenumber%) then exit for end if next i% if not eof(filenumber%) then linecount% = -1 end if end sub function keycode% static do k$ = inkey$ loop until k$ <> "" keycode% = cvi(k$ + chr$(0)) end function ==============================end============================ -=> Lawrence <=- ___ Blue Wave/QWK v2.12 --- WM v2.06/92-0545 * Origin: Toast House - (314) 994-0312 - (1:100/560)
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