FILELIST$
Jump to navigation
Jump to search
This version of the FILELIST$ string Function can be set up as a separate Window or be positioned anywhere on program screens larger than 640 X 480. Two position parameters are added to place the top left corner position on a QB64 custom _NEWIMAGE screen. It can be used with ANY screen mode either as a separate window or combined with your program screen! Simply set the parameters to zero if you want to use it as a Window. It will completely restore your program after a file list is displayed. Like the original version, this setup can also be INCLUDEd as a library and supports all of the original file specifications listed on the FILELIST$ (function) page.
_TITLE "Demo of FILELIST$ Function by Ted Weissgerber 2010" dst& = _NEWIMAGE(800, 600, 32) 'for console bitmap SCREEN dst& PAINT (799, 599), _RGB(180, 180, 180) LINE (7, 15)-(648, 496), _RGB(0, 0, 80), BF LOCATE 33, 10: PRINT "Do you want file display in a new window? (Y/N)" DO: SLEEP: yesno$ = UCASE$(INKEY$): LOOP UNTIL yesno$ <> "" IF yesno$ = "Y" THEN x% = 0: y% = 0 ELSE x% = 8: y% = 16 'set parameters LOCATE 33, 10: INPUT "Enter a File Type extension(*.BMP, *.TXT, etc): ", spec$ spec$ = UCASE$(spec$) IF LEN(spec$) = 0 THEN spec$ = "*.BMP" 'IF INSTR(spec$, "*.") = 0 THEN spec$ = "*." + spec$ '<<<<<<< If x% and y% parameters are 0, the display is in separate window.>>>>>> filename$ = FILELIST$(spec$, x%, y%) '<<<<<<<< added display position parameters LOCATE 35, 10: PRINT filename$, LFN$ SLEEP '------------------------------------- END DEMO CODE ------------------------------- |
FUNCTION FILELIST$ (Spec$, xpos%, ypos%) SHARED Path$, LFN$ 'values also accessable by program REDIM LGFN$(25), SHFN$(25), Last$(25), DIR$(25), Paths$(25) '<<<< $DYNAMIC only IF LEN(ENVIRON$("OS")) = 0 THEN EXIT FUNCTION 'DIR X cannot be used on Win 9X f% = FREEFILE IF xpos% + ypos% = 0 THEN '****************** Root path TITLE in separate window only SHELL _HIDE "CD > D0S-DATA.INF" OPEN "D0S-DATA.INF" FOR INPUT AS #f% LINE INPUT #f%, current$ CLOSE #f% END IF ' ******************************************** END TITLE(see _TITLE below) Spec$ = UCASE$(LTRIM$(RTRIM$(Spec$))) IF INSTR(Spec$, "/A:D") OR INSTR(Spec$, "/O:G") THEN DL$ = "DIR": BS$ = "\" 'directory searches only ELSE: DL$ = SPACE$(3): BS$ = "" END IF mode& = _COPYIMAGE(0) 'save previous screen value to restore if files displayed. ' Get Specific file information if available SHELL _HIDE "cmd /c dir " + Spec$ + " /X > D0S-DATA.INF" 'get data Head$ = " Short Name Long Name Last Modified " tmp$ = " \ \ \ \ \ \ \ \" OPEN "D0S-DATA.INF" FOR INPUT AS #f% 'read the data file DO UNTIL EOF(f%) LINE INPUT #f%, line$ IF INSTR(line$, ":\") THEN Path$ = MID$(line$, INSTR(line$, ":\") - 1) IF RIGHT$(Path$, 1) <> "\" THEN Path$ = Path$ + "\" setcode% = 0: filecode% = 0 END IF IF LEN(line$) > 25 AND MID$(line$, 1, 1) <> " " THEN 'don't read other info IF format% = 0 THEN IF MID$(line$, 20, 1) = "M" OR INSTR(line$, "<") = 25 THEN Sst% = 40: Lst% = 53: Dst% = 26: format% = 1 ' XP ELSE: Sst% = 37: Lst% = 50: Dst% = 23: format% = 2 'VISTA END IF END IF IF LEN(line$) >= Lst% THEN filecode% = ASC(UCASE$(MID$(line$, Lst%, 1))) ELSE filecode% = 0 D1R$ = MID$(line$, Dst%, 3) 'returns directories only with Spec$ = "/A:D" or "/O:G" IF D1R$ <> "DIR" THEN D1R$ = SPACE$(3) 'change if anything else IF D1R$ = DL$ AND filecode% >= setcode% THEN cnt% = cnt% + 1 DIR$(cnt%) = D1R$: Paths$(cnt%) = Path$ Last$(cnt%) = MID$(line$, 1, 20) IF MID$(line$, Sst%, 1) <> SPACE$(1) THEN SHFN$(cnt%) = MID$(line$, Sst%, INSTR(Sst%, line$, " ") - Sst%) LGFN$(cnt%) = MID$(line$, Lst%) ELSE: SHFN$(cnt%) = MID$(line$, Lst%): LGFN$(cnt%) = "" END IF IF LEN(Spec$) AND (Spec$ = UCASE$(SHFN$(cnt%)) OR Spec$ = UCASE$(LGFN$(cnt%))) THEN Spec$ = SHFN$(cnt%) + BS$: FILELIST$ = Spec$: LFN$ = LGFN$(cnt%) + BS$ noshow = -1: GOSUB KILLdata ' verifies file exist query (no display) END IF IF page% > 0 THEN ' pages after first IF cnt% = 1 THEN GOSUB NewScreen COLOR 11: LOCATE , 3: PRINT USING tmp$; DIR$(cnt%); SHFN$(cnt%); LGFN$(cnt%); Last$(cnt%) IF DIR$(cnt%) = "DIR" AND LEFT$(SHFN$(cnt%), 1) = "." THEN SHFN$(cnt%) = "": LGFN$(cnt%) = "" ELSE 'first page = 0 IF cnt% = 2 THEN 'only display to screen if 2 or more files are found FList& = _NEWIMAGE(640, 480, 256) IF xpos% + ypos% > 0 THEN ' user wants display on program screen Show& = _NEWIMAGE(640, 480, 256) '<<<<<< ONSCREEN program displays only _DEST FList& ELSE: SCREEN FList& ' <<<<<<<<< Separate Window _TITLE current$ '<<<<<<<<<<<<<<<<<<<<<<<<<<< TITLE optional END IF GOSUB NewScreen '<<<< update function's screen with Putimage(see notes) COLOR 11: LOCATE , 3: PRINT USING tmp$; DIR$(1); SHFN$(1); LGFN$(1); Last$(1) IF DIR$(1) = "DIR" AND LEFT$(SHFN$(1), 1) = "." THEN SHFN$(1) = "": LGFN$(1) = "" END IF IF cnt% > 1 THEN COLOR 11: LOCATE , 3: PRINT USING tmp$; DIR$(cnt%); SHFN$(cnt%); LGFN$(cnt%); Last$(cnt%) IF DIR$(cnt%) = "DIR" AND LEFT$(SHFN$(cnt%), 1) = "." THEN SHFN$(cnt%) = "": LGFN$(cnt%) = "" END IF END IF 'page% IF cnt% MOD 25 = 0 THEN 'each page holds 25 file names COLOR 14: LOCATE 28, 24: PRINT "Select file or click here for next."; GOSUB pickfile page% = page% + 1: cnt% = 0 REDIM LGFN$(25), SHFN$(25), Last$(25), DIR$(25), Paths$(25) '<<<< $DYNAMIC only END IF 'mod 25 END IF 'DIR = DL$ END IF 'len line$ > 25 LOOP CLOSE #f% last = 1: total% = cnt% + (page% * 25) IF total% = 0 THEN FILELIST$ = "": Spec$ = "": LFN$ = "": noshow = -1: GOSUB KILLdata: 'no files(no display) IF total% = 1 THEN 'one file(no display) Spec$ = SHFN$(1) + BS$: FILELIST$ = Spec$: LFN$ = LGFN$(1) + BS$: noshow = -1: GOSUB KILLdata END IF IF DL$ = SPACE$(3) THEN COLOR 10: LOCATE 28, 65: PRINT total%; "Files" ELSE: COLOR 10: LOCATE 28, 65: PRINT total%; "Folders" END IF COLOR 14: LOCATE 28, 24: PRINT "Select file or click here to Exit. "; pickfile: _DEST FList& ShowPath$ = RIGHT$(Path$, 78) COLOR 15: LOCATE 29, 41 - (LEN(ShowPath$) \ 2): PRINT ShowPath$; GOSUB NewDisplay DO: Key$ = UCASE$(INKEY$): _LIMIT 30 DO WHILE _MOUSEINPUT Tcol% = ((_MOUSEX - xpos%) \ 8) + 1 'mouse column with Putimage offset Trow% = ((_MOUSEY - ypos%) \ 16) + 1 'mouse row with offset Pick = _MOUSEBUTTON(1) ' get left button selection click LOOP IF Trow% > 2 AND Trow% < cnt% + 3 AND Tcol% > 0 AND Tcol% < 80 THEN 'when mouse in area R% = Trow% - 2 IF P% = 0 OR P% > cnt% + 3 THEN P% = R% IF P% = R% THEN COLOR 15: LOCATE R% + 2, 3: PRINT USING tmp$; DIR$(R%); SHFN$(R%); LGFN$(R%); Last$(R%) ELSE COLOR 11: LOCATE P% + 2, 3: PRINT USING tmp$; DIR$(P%); SHFN$(P%); LGFN$(P%); Last$(P%) END IF GOSUB NewDisplay P% = R% IF Pick THEN Spec$ = SHFN$(R%) IF LEN(Spec$) THEN COLOR 13: LOCATE R% + 2, 3: PRINT USING tmp$; DIR$(R%); SHFN$(R%); LGFN$(R%); Last$(R%) GOSUB NewDisplay Spec$ = Spec$ + BS$: FILELIST$ = Spec$: Path$ = Paths$(R%) IF LEN(LGFN$(R%)) THEN LFN$ = LGFN$(R%) + BS$ ELSE LFN$ = "" _DELAY 1.5: CLS: SCREEN mode&: GOSUB KILLdata 'exit if user selection END IF END IF 'len spec END IF 'pick IF LEN(Key$) THEN usercode% = ASC(Key$) ELSE usercode% = 0 IF usercode% > setcode% THEN setcode% = usercode% 'user can press letter to jump to IF Pick AND Trow% > 27 THEN EXIT DO LOOP UNTIL LEN(Key$) _DELAY .4 'adjust delay for page scroll speed DO: Key$ = INKEY$: LOOP UNTIL Key$ = "" IF last = 0 THEN RETURN 'exit if file no more data FILELIST$ = "": Spec$ = "": LFN$ = "" CLS: SCREEN mode& 'resets program screen to previous condition KILLdata: CLOSE #f%: KILL "D0S-DATA.INF" 'kill D0S-DATA.INF file and exit IF FList& < -1 THEN _FREEIMAGE FList& IF Show& < -1 THEN _FREEIMAGE Show& IF noshow = -1 AND mode& < -1 THEN _FREEIMAGE mode& _AUTODISPLAY 'reset default settings EXIT FUNCTION RETURN NewScreen: 'clear screen and set display format LINE (0, 0)-(639, 499), 0, BF COLOR 14: LOCATE 2, 3: PRINT Head$ LINE (4, 4)-(636, 476), 13, B: LINE (5, 5)-(635, 475), 13, B GOSUB NewDisplay RETURN NewDisplay: 'show program or window displays IF xpos% + ypos% > 0 THEN _PUTIMAGE , FList&, Show& _DEST 0: _PUTIMAGE (xpos%, ypos%), Show&: _DISPLAY _DEST FList& ELSE: _DISPLAY END IF RETURN END FUNCTION |
See also:
Return to original FILELIST$ function