fDelete (Function)

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Standard functions

External file management functions

WLanguage procedures

fDelete

Presentation

Example

Handling errors

Operating mode in Windows Vista (and later)

See also

ChangeSize

FileName

Find

Lock

Read

ReadLine

ReadLineRegularExpression

Seek

Size

Unlock

Write

WriteLine

Constants for external files

DiskFile

Functions for handling directories and external files

Functions for handling directories and external files (prefix syntax)

Handling the external files

Storing files in Android

Summary table: Managing the application directories according to the platform

fAddBuffer

fAddText

fAttribute (Example)

fAttribute

fAttributeReadOnly

fBuildPath

fBuildRelativePath

fCacheDir

fChangeExtension

fChangeSize

fClose (Example)

fClose

fCompare (Example)

fCompare

fCompress (Example)

fCompress

fContentType

fCopyDir (Example)

fCopyDir

fCopyFile (Example)

fCopyFile

fCopyFileWebFolder

fCreate (Example)

fCreate

fCreateLink

fCurrentDir (Example)

fCurrentDir

fCurrentDrive (Example)

fCurrentDrive

fDataDir

fDataDirCommon

fDataDirUser

fDate (Example)

fDate

fDateTime (Example)

fDateTime

fDecrypt (Example)

fDecrypt

fDelete (Example)

fDelete

fDeleteFileWebFolder

fDetectRemovableStorage

fDir (Example)

fDir

fDirAttribute

fDirExist

fDirRename

fDirSize

fDirectoryExist

fDriveInfo (Example)

fDriveInfo

fDriveReady (Example)

fDriveReady

fEncrypt (Example)

fEncrypt

fExeDir

fExtractPath (Example)

fExtractPath

fExtractResource

fFileExist

fFileName

fFind

fGlobalDirCommon

fGlobalDirUser

fGraphicFilter (Example)

fGraphicFilter

fImageSelect (Example)

fImageSelect

fInsertTextAtBeginning

fIsImage

fListDirectory (Example)

fListDirectory

fListDisk

fListFile (Example)

fListFile

fListResource

fLoadBuffer

fLoadResource

fLoadText

fLock (Example)

fLock

fLongName (Example)

fLongName

fLongPath (Example)

fLongPath

fMIMEType

fMakeDir (Example)

fMakeDir

fMerge

fMoveDir (Example)

fMoveDir

fMoveFile

fOpen (Example)

fOpen

fOpenTempFile

fParentDir

fRead (Example)

fRead

fReadLine (Example)

fReadLine

fReadLineRegularExpression

fRemoveDir (Example)

fRemoveDir

fRename (Example)

fRename

fReportsAndQueriesDir

fResourceDir

fSaveBuffer

fSaveText

fSeek (Example)

fSeek

fSelect (Example)

fSelect

fSelectDir (Example)

fSelectDir

fSep

fSeparator

fShortName (Example)

fShortName

fShortPath (Example)

fShortPath

fSize (Example)

fSize

fSizeUncompressed (Example)

fSizeUncompressed

fSplit

fStopCompress (Example)

fStopCompress

fTempDir

fTempFile (Example)

fTempFile

fTempPath (Example)

fTempPath

fTime (Example)

fTime

fTrackDirectory

fTrackFile

fTrackStop

fTrackStopAll

fUncompress (Example)

fUncompress

fUnlock (Example)

fUnlock

fWebDir

fWrite (Example)

fWrite

fWriteLine (Example)

fWriteLine

Handling errors
Operating mode in Windows Vista (and later)

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

fDelete (Function)

In french: fSupprime

Deletes a file accessible from the current computer.

Example

See additional examples

// Delete a file
ResDelete = fDelete("C:\MyDirectories\File.doc")
// ------------------
let nRes = fDelete("C:\my projects\My File.txt")
IF nRes = False THEN ErrorInfo(errMessage)

Syntax

<Result> = fDelete(<File name> [, <Option>])

<Result>: Boolean

True if the file was deleted,
False otherwise. To get more details on the error, use ErrorInfo with the errMessage constant.

<File name>: Character string

Name of the file to delete. This parameter can be:
a file name. This file will be automatically sought in the current directory (returned by fCurrentDir).
a file name with its full or relative path. A UNC path can be used.
Wildcard characters (*,?) are allowed in the file name.
If no drive is specified, the file will be deleted from the current drive.
If the "*.*" expression is used, only the files that have an extension will be deleted.
This parameter can be in Ansi or Unicode format.
This parameter can correspond to a full path or a path relative to the current directory (returned by fCurrentDir). This parameter is case-sensitive.
Reminder: In Android, the file system is read-only on the device and on the emulator. An application can only write to its setup directory or one of its subdirectories, as well as to the external memory (SDCard).
This parameter can correspond to a full path or a path relative to the current directory (returned by fCurrentDir). This parameter is case-sensitive.
Reminder: On iPhone/iPad, the file system is read-only on the device and on the emulator. An application can only write to its setup directory or one of its subdirectories.

<Option>: Optional constant

Type of deletion to perform:
frReadOnly Automatically deletes the read-only files (without confirmation).
frToRecycleBin Sends the file to the Windows recycle bin instead of deleting it.
This constant is not available.
This parameter is not available.

Remarks

Handling errors

fDelete throws an error in the following cases:

the file to delete does not exist,
the file to delete is open or locked,
the user has no read or write rights on the file to delete.

Operating mode in Windows Vista (and later)

If this function does not operate properly in Windows Vista (and later), check whether the file or directory used is not in one of the system directories (Windows directory or "Program Files" directory).

In Windows Vista (and later), with the UAC mechanism (User Account Control) enabled, you must have administrator privileges to handle and/or modify the files or directories in system directories (Windows directory or "Program Files" directory).

Programming tip: To handle and/or modify the files or directories without administrator privileges, you should:

avoid writing to the Windows directory or to the "Program Files" directory,
use the system directory of the application (returned by SysDir with the srAppDataCommun constant, for example).

Component: wd280std.dll