[Gmsh] screen-shot script with range mode - custom min max

[Vladimir Nikolic]

hello everybody
i'm using this wonderful gmsh software for some time. 

when i am creating screenshots i am using console gmsh in conjuction with pos file and simple script:***
Print "file.jpg";
Exit;***
i wonder - is there any way to set in the same script range mode to custom - like in gui menu - so that user can set min and max values?
thanks 
vlad


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