QuickTime 3 Reference

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The Point Structure

The gxPoint structure is defined as follows:

struct gxPoint {
    Fixed   x;
    Fixed   y;
};

Field descriptions

x
A horizontal distance. Greater values of the x field indicate distances further to the right.
y
A vertical distance. Greater values of the y field indicate distances further down.

The location of the origin depends on the context where you use the point; for example, it might be the upper-left corner of a view port.

Notice that the x and y fields are of type Fixed . QuickDraw GX allows you to specify fractional coordinate positions.

© 1997 Apple Computer, Inc.

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