select the upper half of an image

[mangurian]

Is there a way to record a script that selects the top half of an image independent of the image size?
Thanks,

[LeviFiction]

Yes, this is possible with scripts. The best way to do this is to record an initial script that creates a manual selection and then edit it to do the math so that makes the script intelligent.

My brain isn't working well enough for me to explain what I mean so I'm attaching a script that does what you want. It calls the "Custom Selection" command and uses the TargetDocument (the one that was active when you ran the script) to figure out how wide and tall the selection should be. I recorded the use of Custom Selection and then edited the script to use the TargetDocument.Width and TargetDocument.Height variables.

Just unzip this file into your Scripts-Restricted folder.

[mangurian]

Thanks. This gives me a great starting point.

Is there a way to assign the image width/height to a global variable for use throughout my script ?

[LeviFiction]

Scripts are written in Python, just use global variables the way Python does them.

Of course you don't need to unless you want your own copies.
By default PSP has a global object called App. This object contains a lot of information, but specifically 3 other objects that relate to the images/documents open inside of PSP. App.TargetDocument is the document that was active when you ran the script, App.ActiveDocument is the currently active document which can be changed through the use of the SelectDocument command. When you open a new image in script, for example, you will want to select the new document to make sure it's active. And the Documents list, an array.of document objects. Each document object contains a title member a Name member which is the full path of it's a file, as well as width and height info.

I highly recommend the Scripting for Script Authors PDF for more information.