PhRegionChange

Gamma/Photon: Using Gamma™ with the Photon microGUIŽ, Version 4.0
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# `PhRegionChange`

`PhRegionChange` -- changes the definition of a region.

## Syntax

    PhRegionChange (fields, flags, info, rect)

## Arguments

`fields`

  The fields in `info` that are to be changed.

`flags`

  Options: expose_region OR expose_family.

`info`

  The information structure of the region.

`rect`

  The PhRect associated with the region.

## Returns

0 on success, else -1 on error.

## Description

This function changes the definition of the region. The `flags` control what to do if part of the region gets exposed, sending an ev_expose event to the region, to the region's descendents, or both.

## See Also

In Photon documentation: PhRegionChange.

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