Monkeybread Software - MBS FileMaker Plugin: CGImageSource.CreateWithPath

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CGImageSource.CreateWithPath

Creates an image source that reads from a location specified by a Path.

Component	Version	macOS	Windows	Linux	Server	FileMaker iOS SDK
CGImageSource	3.4	Yes	No	No	Yes, macOS only	Yes

MBS( "CGImageSource.CreateWithPath"; Path ) More

Parameters

Parameter Description Example

Path The platform specific native file path. "/test.jpg"

Parameter	Description	Example
Path	The platform specific native file path.	"/test.jpg"

Result

Returns the reference number for this image source or error message.

Description

Creates an image source that reads from a location specified by a Path.
Don't forget to call CGImageSource.Release later to release the reference number.

This function requires a native path. Use Path.FileMakerPathToNativePath to convert a FileMaker path to a native path if required. If you like to have the user choose the path, you can use FileDialog functions.
For Server be aware that server has limited permissions and may not be able to access all files on a computer.

Examples

Load image and show it:

Set Variable [ $path ; Value: "/Users/cs/Pictures/IMG_3625.jpg" ]
Set Variable [ $img ; Value: MBS( "CGImageSource.CreateWithPath"; $path ) ]
Set Field [ test::output ; MBS( "CGImageSource.ImageAtIndex"; $img; 0) ]
Set Variable [ $r ; Value: MBS( "CGImageSource.Release"; $img ) ]

Read HEIC 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 ) ]
# get image to show
Set Variable [ $image ; Value: MBS( "CGImageSource.ImageAtIndex"; $ImageSource; 0; "PNG"; "image.png") ]
If [ MBS("IsError") = 0 ]
Set Field [ Untitled::image ; $image ]
End If
Set Variable [ $r ; Value: MBS( "CGImageSource.Release"; $ImageSource ) ]
End If

Blog Entries

Read HEIC or HEIF image files in FileMaker

Created 18th August 2014, last changed 27th January 2020

CGImageSource.CreateWithData - CGImageSource.CreateWithURL