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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 found:
  • in an Image control.
  • Versions 17 and later
    Reports and QueriesWindows in an Image variable.
    New in version 17
    Reports and QueriesWindows in an Image variable.
    Reports and QueriesWindows in an Image variable.
    in an Image variable.
  • in a Bar Code control.
  • in a Web Camera 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 changes made by ImageInfoModify on the Exif tags of an image.
// Saves in memory the image found in "IMG_ImageDrawing"
ResSave = dSaveImageJPEG(IMG_ImageDrawing, inMemory)
Reports and Queries
// Saves the image found in "IMG_ImageDrawing" in "C:\Documents\Image.JPEG"
ResSave = dSaveImageJPEG(IMG_ImageDrawing, "C:\Documents\Image.JPEG")
Reports and Queries
// 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
dSaveImageJPEG(IMG_MyImageControl, "C:\Dives\Gorgone1.JPG", 100, imgSaveTag)
Syntax
Reports and Queries

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

<Result> = dSaveImageJPEG(<Image name> , <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 name>: Character string (with or without quotes) or Image variable
  • Name of Image control, Bar Code control or Web Camera control to use. The Image controls found in a report cannot be used.
  • Versions 17 and later
    Reports and Queries Name of the Image variable to use.
    New in version 17
    Reports and Queries Name of the Image variable to use.
    Reports and Queries Name of the Image variable to use.
    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:
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.
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.
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.

Saving an image in memory Hide the details

<Result> = dSaveImageJPEG(<Image name> , <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 name>: Character string (with or without quotes) or Image variable
  • Name of Image control, Bar Code control or Web Camera control to use. The Image controls found in a report cannot be used.
  • Versions 17 and later
    Reports and Queries Name of the Image variable to use.
    New in version 17
    Reports and Queries Name of the Image variable to use.
    Reports and Queries Name of the Image variable to use.
    Name of the Image variable 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.
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.
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 dSaveImageJPEG is run will be saved. To save this image, you can also use:
  • the function VideoCapture: the image will be saved in BMP format
  • the function dSaveImageBMP: the image will be saved in BMP format or in memory
  • the function dSaveImageGIF: the image will be saved in GIF format or in memory
  • the function dSaveImagePNG: the image will be saved in PNG format or in memory.
Component : wd250pnt.dll
Minimum version required
  • Version 9
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