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  • Image found in a Web Camera control
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Stored procedures
Saves an image:
  • in a file in JPEG format.
  • in memory.
This image corresponds to the image contained in a Image control.
Remarks:
  • Only the visible part of Image control is saved.
  • This function can only be used to save the images for screen resolutions up to 32 bits.
  • This function cannot be used with the Image controls found in the reports.
  • This function can also be used to save the modifications performed by ImageInfoModify on the Exif tags of an image.
  • Java 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
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
New in version 15
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Saves in memory the image found in "IMG_ImageDrawing"
ResSave = IMG_ImageDrawing.SaveJPEG(inMemory)
WINDEVUniversal Windows 10 AppUser code (UMC)
// Saves the image found in "IMG_ImageDrawing" in "C:\Documents\Image.JPEG"
ResSave = IMG_ImageDrawing.SaveJPEG("C:\Documents\Image.JPEG")
WINDEVUser code (UMC)
// Modify the comments of the image
// displayed in the "IMG_MyImageControl" control
ImageInfoModify(IMG_MyImageControl, imgComment, "Coral Reef")
// Save the modification in the
// "C:\Diving\Coral.JPG" file
IMG_MyImageControl.SaveJPEG("C:\Dives\Gorgone1.JPG", 100, imgSaveTag)
Syntax
WINDEVUniversal Windows 10 AppJavaUser code (UMC)

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

<Result> = <Image control>.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 control>: Control name
  • Name of Image control, Bar Code control or Web Camera control to use. The Image controls found in a report cannot be used.
  • Java Name of Image control 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:
imgAddThumbnailAdds 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.
Java This constant is not available.
imgProgressiveJPEGUsed 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).
imgGrayScaleUsed to save the image in black and white ("Grayscale" display mode).
imgSaveTagSaves the Exif tags.
A new thumbnail is calculated if a thumbnail is found in the image file displayed in the Image control.
Java 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.
Universal Windows 10 App This parameter is not available.
Universal Windows 10 App Syntax not available

Saving an image in memory Hide the details

<Result> = <Image control>.SaveJPEG(<inMemory> [, <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 control>: Control name
  • Name of Image control, Bar Code control or Web Camera control to use. The Image controls found in a report cannot be used.
  • Java Name of Image control to use.
<inMemory>: Constant
inMemory: Constant used to save an image in memory.
<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:
imgAddThumbnailAdds 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.
Java This constant is not available.
imgProgressiveJPEGUsed 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).
imgSaveTagSaves the Exif tags.
A new thumbnail is calculated if a thumbnail is found in the image file displayed in the Image control.
Java 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.
Remarks

Image found in a Web Camera control

Only the image displayed when <Image>.SaveJPEG is run will be saved. To save this image, you can also use:
  • the function <Camera>.Capture: the image will be saved in BMP format
  • the function <Image>.SaveBMP: the image will be saved in BMP format or in memory
  • the function <Image>.SaveGIF: the image will be saved in GIF format or in memory
  • the function <Image>.SavePNG: the image will be saved in PNG format or in memory.
Component : wd250pnt.dll
Minimum version required
  • Version 24
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