TQASync
A drawing engine must define a method to synchronize a draw context.
typedef TQAError (*TQASync) (const TQADrawContext *drawContext);
drawContext- A draw context.
DESCRIPTION
YourTQASyncfunction should operate just like yourTQAFlushfunction, except that it should wait until all queued drawing commands have been processed before returning. See the description ofTQAFlush(page 1-133) for complete details.
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