Updating a Static Text and Slider From High Priority Thread While Resizing a Window
Updating a Static Text and Slider From High Priority Thread While Resizing a Window
- Subject: Updating a Static Text and Slider From High Priority Thread While Resizing a Window
- From: Peter Zegelin <email@hidden>
- Date: Sat, 18 Oct 2008 22:23:56 +1100
Hi,
Still fairly new to Cocoa here.
I have a high priority thread that that for the moment just calls back
as often as possible to a method that updates a static text object
with the current time. A slider is also updated to a new value. Its a
bit like a stop watch with a position indicator. This all works well
until I resize a window or invoke a menu when the whole thing just
grinds to a halt. If I call std::cout with the value the debugger
shows a continuous stream of data so I know the thread is still being
called as often as possible but the text and slider aren't updating.
Is there any way to get these items to update under these
circumstances? I tried calling [label setNeedsDisplay] but that just
caused a crash.
thanks!
Peter Zegelin
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