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GMImage.WriteToJPEGContainer

Writes the picture in JPEG format to a container value which you can store in a container field.

Component Version macOS Windows Linux Server FileMaker iOS SDK
GraphicsMagick 2.0 Yes Yes Yes Yes Yes
MBS( "GMImage.WriteToJPEGContainer"; ImageRef { ; Filename } )   More

Parameters

Parameter Description Example Flags
ImageRef The image reference number. 1
Filename The file name to use for the container. Default is "image.jpg" "ball.jpg" Optional

Result

Returns a container value.

Description

Writes the picture in JPEG format to a container value which you can store in a container field.
Includes a file name "image.jpg" and the image size.
For the quality setting use the GMImage.SetQuality function.
For most cases the PNG file format is the better choice as it supports transparency and lossless compression.
See also GMImage.WriteToFile, GMImage.WriteToPNGContainer, GMImage.WriteToTiffContainer, GMImage.WriteToBMPContainer and GMImage.WriteToGIFContainer.

Examples

Recompresses the image with JPEG compressor and a really bad quality:

Let ( [
$Image = MBS("GMImage.NewFromContainer"; GraphicsMagick::image);
$Result = MBS("GMImage.SetQuality";$Image; 5);
$Result = MBS("GMImage.WriteToJPEGContainer"; $Image);
$Error = MBS("GMImage.Release";$Image)
];
$Result)

Save JPEG image to container as script:

Set Variable [ $Image ; Value: MBS("GMImage.NewFromContainer"; MyTable::BMPContainer) ]
Set Variable [ $r ; Value: MBS("GMImage.SetQuality";$Image; 90) ]
Set Field [ MyTable::JPEGContainer ; MBS("GMImage.WriteToJPEGContainer"; $Image) ]
Set Variable [ $r ; Value: MBS("GMImage.Release";$Image) ]

See also

Example Databases

Blog Entries

FileMaker Magazin

Created 18th August 2014, last changed 21st December 2018


GMImage.WriteToGIFContainer   -   GMImage.WriteToPDFContainer

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