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<!DOCTYPE concept

  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="GUID-91874A4A-57A4-54F9-966C-7D65D3782220" xml:lang="en"><title>(x,y)

Co-ordinate System</title><shortdesc>The co-ordinate origin of a window is its top left corner. Positive

co-ordinate values indicate positions to the right and down from the origin.

Negative values are also valid, and indicate co-ordinates outside the window's

extent. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

<p> <b>Variant</b>: Both (ScreenPlay and non-ScreenPlay). <b>Target

audience</b>: Application developers. </p>

<p>Each window has a position, which is the position of its origin relative

to its parent’s origin. If its parent is a window group, then its position

is effectively relative to the top left corner of the screen or display device,

because window groups do not have a size. </p>

</conbody><related-links>

<link href="GUID-99AE1D62-571A-5A63-B472-C0FBC0861F52.dita"><linktext>Window Types</linktext>

</link>

</related-links></concept>