GetThumbnail
Purpose 
Returns a thumbnail image of the content in a container field, according to specified values for width and height.
Format 
GetThumbnail(field;width;height)
Parameters 
field - any text, number, date, time, timestamp, or container field; or any text expression or numeric expression.
width - the width for the thumbnail.
height - the height for the thumbnail.
Data type returned 
container
Originated in 
FileMaker Pro 12.0
Description 
Returns an image that’s stored in a container field according to specified values for width and height. The thumbnail image always maintains the proportions of the original image.
Examples 
GetThumbnail(Dog;GetLayoutObjectAttribute("rectangle","width"); GetLayoutObjectAttribute("rectangle","height")) returns an image stored in the Dog field that fits into the dimensions of the Rectangle layout object.
GetThumbnail(Property;GetWidth(Property)/2;GetHeight(Property)/2)returns an image that is 50 percent of the size of the original image in the Property field.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas
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