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Home » U++ Library support » U++ Widgets - General questions or Mixed problems » howto best Ctrl Refresh handling w/ MT & very frequent refreshes
| Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes [message #27038 is a reply to message #27035] |
Tue, 22 June 2010 15:36   |
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Messages: 301
Registered: November 2008
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Senior Member |
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| kohait00 wrote on Tue, 22 June 2010 11:24 |
thanks for the example.
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| tojocky wrote on Tue, 22 June 2010 13:05 |
Nice solution!
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Thanks. Main credits to Jan.
| kohait00 wrote on Tue, 22 June 2010 11:24 |
additionally, the threads passing the refresh work over to the MainThread (using ICall interface etc.) are beeing slept for that time. -> main thread invokes Refresh just too often, because the Updates (that trigger the Refresh) are independant.
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Seems, there exists some race condition to access Handle of Device Context (HDC), at least on Windows operating system.
| kohait00 wrote on Tue, 22 June 2010 11:24 |
Refresh time does not need to be faster than 200 ms.
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In particular example, refresh (update) rate can be set to 0 ms (or by using PostCallback).
[Updated on: Tue, 22 June 2010 16:12] Report message to a moderator |
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