<Image variable>.SaveJPEG (Function)

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<Image variable>.SaveJPEG (Function)

In french: <Variable Image>.SauveJPEG

Saves an image found in an Image variable:

in a file in JPEG format.
in memory.

Remarks:

This function can only be used to save the images for screen resolutions up to 32 bits.
The backup of images in JPEG format is supported only if the application is run by the Java virtual machine (JVM) distributed by SUN. This backup does not operate with the other Java virtual machines.

Versions 15 and later

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

New in version 15

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

Versions 16 and later

This function is now available for Android applications.

New in version 16

This function is now available for Android applications.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

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

MyImage is Image = "Test.gif"
// Saves the image contained in MyImage in memory
ResSave = MyImage.SaveJPEG(inMemory)

MyImage is Image = "Test.gif"
// Saves the image found in MyImage in "C:\Documents\Image.JPEG"
ResSave = MyImage.SaveJPEG("C:\Documents\Image.JPEG")

Syntax

Saving an image in a file in JPEG format Hide the details

<Result> = <Image variable>.SaveJPEG(<File name> [, <Quality> [, <Exif tag>]])

<Result>: Boolean

True if the image was saved,
False otherwise. To know the error details, use ErrorInfo with the errMessage constant.

<Image variable>: Image variable

Name of the Image variable to use.

<File name>: Character string (with quotes)

Name and full (or relative) path of JPEG file. A UNC path can be used. The file extension is optional.
Caution:
The destination directory must exist in order for the image to be saved.
The existence of the JPEG file is not checked. This file is automatically overwritten if it already exists.

<Quality>: Optional integer

Quality of the image saved. Value included between 1 and 100 (80 by default). Lower image quality translates into higher image compression rate and smaller file size.

<Exif tag>: Optional constant (or combination of constants)

Save the Exif tags modified by ImageInfoModify:
imgAddThumbnail Adds a thumbnail into the image file (<File name>).
This constant is ignored if a thumbnail is found in the image file displayed in the Image control.
This constant is not available.
imgProgressiveJPEG Used to save the image in progressive JPEG format. This format is mainly used for the Web sites. It allows the pages to be loaded faster (the images being loaded and displayed progressively).
imgGrayScale Used to save the image in black and white ("Grayscale" display mode).
imgSaveTag Saves the Exif tags.
A new thumbnail is calculated if a thumbnail is found in the image file displayed in the Image control.
This constant is not available.
By default, the Exif tags are not saved, no operation is performed on the thumbnails.
This parameter is available only if <Control name> corresponds to the name of an Image control.
This parameter is not available.

Syntax not available

Saving an image in memory Hide the details

<Result> = <Image variable>.SaveJPEG([<Quality> [, <Exif tag>]])

<Result>: Buffer

Byte string containing the image in JPEG format.
Then this byte string can be assigned to an Image control, saved in a file (fSaveText), sent via a network (with the Socket functions), ...

<Image variable>: Image variable

Name of the Image variable to use.

<Quality>: Optional integer

Quality of the image saved. Value included between 1 and 100 (80 by default). Lower image quality translates into higher image compression rate and smaller file size.

<Exif tag>: Optional constant (or combination of constants)

Save the Exif tags modified by ImageInfoModify:
imgAddThumbnail Adds a thumbnail into the image file (<File name>).
This constant is ignored if a thumbnail is found in the image file displayed in the Image control.
This constant is not available.
imgProgressiveJPEG Used to save the image in progressive JPEG format. This format is mainly used for the Web sites. It allows the pages to be loaded faster (the images being loaded and displayed progressively).
imgSaveTag Saves the Exif tags.
A new thumbnail is calculated if a thumbnail is found in the image file displayed in the Image control.
This constant is not available.
By default, the Exif tags are not saved, no operation is performed on the thumbnails.
This parameter is available only if <Control name> corresponds to the name of an Image control.
This parameter is not available.

Remarks

Component : wd250pnt.dll