![]() On Cocoa, a view's `drawRect:' method can be called from a heartbeat thread that animates controls. Such a call happens rarely for a `canvas%' or other class where `drawRect:' is overridden, but since it can happen, ensure that the callback runs on the Racket thread. |
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examples | ||
unsafe | ||
com-registry.rkt | ||
com.rkt | ||
cvector.rkt | ||
file.rkt | ||
info.rkt | ||
objc.rkt | ||
unsafe.rkt | ||
vector.rkt | ||
winapi.rkt |