Yesterday, being 4 hours on TGV, I continued to try to understand how to manage correctly screen refresh in my OOO Aqua build.... without success.
Information from Apple are a bit short about it and even with Quartz debugger, I did not succeed in having text refreshed correctly.
We use Quartz draw methods so we should use CGContextFlush but I must have missed something to use it correctly.
To be continued
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