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Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: QuickDraw GX Environment and Utilities /

Chapter 4 - QuickDraw GX Debugging / QuickDraw GX Debugging Reference

GXValidateViewDevice
You can use the GXValidateViewDevice function to check the parameters of a view device object.
void GXValidateViewDevice(gxViewDevice target);
target
A reference to a view device object to be validated.

DESCRIPTION
The GXValidateViewDevice function checks parameters for the clip, mapping, bitmap, attributes, and tag list properties for all view device objects. In addition, this function checks any internal caches built for the view device. If one or more of the parameters are not valid, QuickDraw GX posts a validation error.
This function is not operational in the non-debugging version of QuickDraw GX.

SEE ALSO
QuickDraw GX validation is introduced in the section "Validation Functions" beginning on page 4-6. The use of validation functions is described in the section "Controlling Validation" beginning on page 4-15.