PZeroLock(PMBool bState);
false to unlock the zero pointAutomatic zero-point position. When you create a new publication, PageMaker automatically locates the rulers' zero point at either the top-left corner of the page or, for facing pages, the middle of the top edge of the paper where pages intersect.
true to lock the zero point
Many graphic designers prefer to reposition the rulers' zero point at the intersection of the top and left margins for measuring within the image area of each page.
Example. This command locks the zero point where the rulers are currently located.
PZeroLock(true);
The PGetZeroLock query
Adobe PageMaker 6.5 Help > Commands > Layout > Guides and Rulers
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