CGImageSource.Properties

Queries all properties as JSON.

Parameters

Parameter	Description	Example	Flags
Ref	The image source reference number returned by CGImageSource.CreateWithData, CGImageSource.CreateWithPath or CGImageSource.CreateWithURL	$ref
Index	The index of the image to query. -1 for global properties. Else a number from 0 to CGImageSource.Count-1.	0	Optional

Result

Returns JSON or error.

Description

Examples

Query properties for first image:

MBS("CGImageSource.Properties"; $ref; 0)

Example result:
{ "{TIFF}" : { "ResolutionUnit" : 2, "Software" : "QuickTime 7.5.5", "DateTime" : "2008:10:19 13:29:12", "XResolution" : 72, "ImageDescription" : "Digital StillCamera", "Orientation" : 1, "YResolution" : 72, "Model" : "DC-8300", "Make" : "Traveler" }, "{IPTC}" : { "DigitalCreationTime" : "142931", "DigitalCreationDate" : "20081015", "TimeCreated" : "142931", "DateCreated" : "20081015", "Caption\/Abstract" : "Digital StillCamera" }, "{Exif}" : { "DateTimeOriginal" : "2008:10:15 14:29:31", "ComponentsConfiguration" : [ 1, 2, 3, 0 ], "MaxApertureValue" : 3.1, "DigitalZoomRatio" : 1, "ExposureBiasValue" : 0, "Saturation" : 0, "FNumber" : 4.8, "SceneCaptureType" : 0, "ShutterSpeedValue" : 6.67, "SubjectDistRange" : 0, "ApertureValue" : 4.5, "FileSource" : 3, "Sharpness" : 0, "ColorSpace" : 1, "Contrast" : 0, "PixelYDimension" : 267, "WhiteBalance" : 0, "LightSource" : 0, "FlashPixVersion" : [ 1, 0 ], "DateTimeDigitized" : "2008:10:15 14:29:31", "ISOSpeedRatings" : [ 50 ], "ExposureMode" : 0, "PixelXDimension" : 200, "ExifVersion" : [ 2, 2 ], "CustomRendered" : 0, "ExposureProgram" : 2, "Flash" : 0, "ExposureTime" : 0.01, "FocalLenIn35mmFilm" : 68, "MeteringMode" : 2 }, "PixelHeight" : 267, "PixelWidth" : 200, "{JFIF}" : { "XDensity" : 72, "YDensity" : 72, "IsProgressive" : true, "JFIFVersion" : [ 1, 0, 1 ], "DensityUnit" : 1 }, "ProfileName" : "sRGB IEC61966-2.1", "DPIWidth" : 72, "DPIHeight" : 72, "ColorModel" : "RGB", "Orientation" : 1, "Depth" : 8 }

Read in metadata for image:

Set Variable [ $path ; Value: "/Users/cs/Desktop/IMG_3552.HEIC" ] 
Set Variable [ $ImageSource ; Value: MBS( "CGImageSource.CreateWithPath"; $path) ] 
If [ MBS("IsError") = 0 ] 
    # you can get metadata as JSON to check later...
    Set Variable [ $$MetaData ; Value: MBS( "CGImageSource.Properties"; $ImageSource ) ] 
    Set Variable [ $$ImageMetaData ; Value: MBS( "CGImageSource.Properties"; $ImageSource; 0 ) ] 
    Set Variable [ $r ; Value: MBS( "CGImageSource.Release"; $ImageSource ) ] 
End If

See also

• CGImageSource.ClearProperties
• CGImageSource.Count
• CGImageSource.CreateWithData
• CGImageSource.CreateWithPath
• CGImageSource.CreateWithURL
• CGImageSource.HasProperty
• CGImageSource.ImageAtIndex
• CGImageSource.Property
• CGImageSource.SetProperty
• IsError

Release notes

• Version 8.3
  • Added CGImageSource.Properties function.

Example Databases

• Mac and iOS/CGImageSource Properties

Blog Entries

• Read HEIC or HEIF image files in FileMaker
• MBS FileMaker Plugin, version 8.3pr2

This function checks for a license.

Created 6th June 2018, last changed 19th October 2023

CGImageSource.List - CGImageSource.Property