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DMCanMirrorNow |
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Header: | Displays.h | Carbon status: | Supported | |
Determines whether video mirroring can be activated on the users computer system.
OSErr DMCanMirrorNow ( Boolean *canMirrorNow );
A pointer to a Boolean value; true indicates that mirroring can be activated; false indicates it cannot.
A result code.
In the value pointed to by the canMirrorNow parameter, the DMCanMirrorNow function reports whether video mirroring can be activated. When the canMirrorNow parameter points to a value of true, then the computer uses a version of QuickDraw that supports video mirroring, has exactly two displays attached, and does not have mirror blocking in effect.
You can use the
The DMCanMirrorNow function may move or purge memory blocks in the application heap. Your application should not call this function at interrupt time.
As of System Software version 7.5, only PowerBook computers support video mirroring.
Supported in Carbon. Available in Carbon 1.0.2 and later when running Mac OS 8.1 or later.
© 2000 Apple Computer, Inc. (Last Updated 6/30/2000)