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Par2: COPY('*.std','stdfiles.clm') 2003-07-16 -- Greg Berthume > COPY('*.std','stdfiles.clm')
>
> How can I do something like this in Clarion? API?
>
> Need to copy multiple files into a single file like you can in DOS.
Here's some code I whipped up that does the job if anybody else needs it.
Make sure you add the DOS driver to your app/project.
! Procedure Declaration:
MFileCopy PROCEDURE(STRING pFolder, STRING pFiles, STRING
pDestFile, BYTE pFlag, BYTE pEraseFile),LONG
! Globals
gDestFile CSTRING(128)
gCFile CSTRING(FILE:MaxFilePath)
! Usage Example:
E# = MFileCopy('c:\temp','*.asc','ascfiles.sav',1,1)
IF E#
STOP('MFileCopy Error: ' & E#)
END
STOP('MFileCopy Completed')
!---------------------------------------------------------------------------
-------------------------------!
MFileCopy PROCEDURE(STRING pFolder, STRING pFiles, STRING pDestFile, BYTE
pFlag, BYTE pEraseFile)
!---------------------------------------------------------------------------
-------------------------------!
CFile FILE,DRIVER('DOS'),NAME(gCFile),PRE(CFL),CREATE
Record RECORD,PRE()
Chunk STRING(128)
END
END
DFile FILE,DRIVER('DOS'),NAME(gDestFile),PRE(DFL),CREATE
Record RECORD,PRE()
Chunk STRING(128)
END
END
lFolder CSTRING(FILE:MaxFilePath)
lFiles CSTRING(20)
lFlag BYTE
lEraseFile BYTE
CFileQ QUEUE(FILE:Queue),PRE(CFQ)
END
CopyWindow WINDOW,AT(,,148,45),FONT('Tahoma',10,,),CENTER,GRAY,DOUBLE
IMAGE('cmspackage.ico'),AT(6,12),USE(?Image1)
STRING('Copying File
To ->'),AT(29,4),USE(?TransferString),TRN,FONT('Tahoma',10,,FONT:regular)
STRING(@s12),AT(92,4),USE(gDestFile)
PROGRESS,USE(?ProgressBar),AT(29,16,113,10),RANGE(0,100)
STRING('File:'),AT(29,31),USE(?String4)
STRING(@s20),AT(46,31,,10),USE(CFQ:ShortName)
END
CODE
lFolder = pFolder
lFiles = pFiles
gDestFile = pDestFile
lFlag = pFlag ! True if the DestFile needs to be deleted if
exists.
lEraseFile= pEraseFile ! True if erase source file after copying to
gDestFile?
SETPATH(lFolder)
IF ERRORCODE()
BEEP(BEEP:SystemExclamation) ; YIELD()
MESSAGE('The specified folder does not exist.'&|
'||Folder: ' & lFolder & '||The file copy did not occur.', |
'MFileCopy Error', ICON:Exclamation)
RETURN(1)
END
IF lFlag
REMOVE(DFile)
END
IF EXISTS(gDestFile)
OPEN(DFile)
IF ERRORCODE()
STOP('Destination File Open Error: ' & ERROR())
END
ELSE
CREATE(DFile)
IF ERRORCODE()
STOP('Destination File Create Error: ' & ERROR())
END
OPEN(DFile)
IF ERRORCODE()
STOP('DFile Open Error: ' & ERROR())
END
END
FREE(CFileQ)
DIRECTORY(CFileQ,lFiles,ff_:Normal)
IF RECORDS(CFileQ)=0
RETURN(2)
END
SORT(CFileQ,CFQ:ShortName) ! put the files in file name order
OPEN(CopyWindow)
?ProgressBar{PROP:RangeLow} = 1
?ProgressBar{PROP:RangeHigh} = RECORDS(CFileQ)
LOOP LP# = 1 TO RECORDS(CFileQ)
GET(CFileQ,LP#)
gCFile = CFQ:ShortName
OPEN(CFile)
SET(CFile)
LOOP
NEXT(CFile)
IF ERRORCODE()
CLOSE(CFile)
IF lEraseFile
REMOVE(CFile)
END
BREAK
END
DFL:Chunk = CFL:Chunk
APPEND(DFile)
IF ERRORCODE()
STOP('DFile Append Error: ' & ERROR())
CLOSE(CFile)
BREAK
END
END
?ProgressBar{PROP:Progress} = LP# ; DISPLAY
END
CLOSE(DFile)
CLOSE(CopyWindow)
RETURN(0)
Randy Goodhew adds:
NOTE: In your LOOP to get records...
APPEND(DFile) ! not adequate
use
APPEND(DFile,BYTES(NameOfRecord)) ! for variable length records
You can also increase the size of the DOS record to at least
the size of a small HD cluster, about 2048 or so.
Greg tested:
Looks like SIZE() is needed and not BYTES().
Today is April 26, 2024, 10:39 am This article has been viewed 35121 times.
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