fIsImage (Function)

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External file management functions

Constants for the external files

Functions for handling directories and external files

Handling the external files

Storing files in Android

Summary table: Managing the application directories according to the platform

fCurrentDir (Example)

fCurrentDir

fCurrentDrive (Example)

fDetectRemovableStorage

fDriveReady (Example)

fExtractPath (Example)

fGraphicFilter (Example)

fGraphicFilter

fImageSelect (Example)

fImageSelect

fInsertTextAtBeginning

fIsImage

fListDirectory (Example)

fReadLineRegularExpression

fReportsAndQueriesDir

fSizeUncompressed (Example)

fSizeUncompressed

fSplit

fStopCompress (Example)

fUncompress (Example)

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

Functions for handling directories and external files

fIsImage (Function)

In french: fEstUneImage

Used to find out whether a file found on disk or a file contained in a buffer corresponds to an image format recognized by WINDEV, WEBDEV or WINDEV Mobile.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

IF fIsImage(MyBuffer) = True THEN
Info("The variable corresponds to an image.")
END

Syntax

Examining an external file Hide the details

<Result> = fIsImage(<File name and path>)

<Result>: Boolean

True if the file is an image that can be loaded by WINDEV, WEBDEV or WINDEV Mobile,
False otherwise.

<File name and path>: Ansi or Unicode character string

Name and full (or relative) path of the file to identify. A UNC path can be used.

Analyzing a Buffer variable Hide the details

<Result> = fIsImage(<Variable name>)

<Result>: Boolean

True if the buffer corresponds to an image,
False otherwise.

<Variable name>: Buffer or Binary Memo variable

Name of the Buffer or Binary Memo variable containing the image to be analyzed.

Remarks

Tip

fIsImage can be quite slow because it tries to load the image. To quickly check whether a file is an image, you also have the ability to check the file extension directly.

Component: wd270std.dll