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Whether we have a working document.
|Component||Version||macOS||Windows||Server||FileMaker Cloud||FileMaker iOS SDK|
|The PDF reference returned from DynaPDF.New.|
Returns 1, 0 or error.
DescriptionWhether we have a working document.
If an error occurred it is not always clear whether the PDF file was already deleted or if it is still in memory. Therefore, this function can be used to determine whether a PDF file is still in memory.
If an open PDF file is in memory the return value is 1. If no open PDF file is in memory the return value is 0.
Created 12nd February 2017, last changed 12nd February 2017
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