U++ framework: U++ Widgets - General questions or Mixed problems » howto best Ctrl Refresh handling w/ MT & very frequent refreshes

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Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes [message #26974 is a reply to message #26972]

Wed, 16 June 2010 09:56

kohait00
Messages: 939
Registered: July 2009
Location: Germany

Experienced Contributor

hy guys

Quote:

if (manualRefresh || !IsOpen() || !IsVisible() || r.IsEmpty()) return;

this is exactly what i had been thinking of.

Quote:

InvalidateRect does not invoke WM_PAINT directly.

In either case, in Win32 or X11 (where it has to be implemented by u++), Paint is always as lazy as possible - it only happens when input queue is empty (unless you request immediate repaint using Sync).

Quote:

what do you think?

I think we have spent years optimizing Refresh/Paint. You can only make it worse:)

Simply do not worry. U++ will do the best possible.

now this is a word. this exactly answers my questions..and creates others. how to keep the queue busy so ith wont trigger a refresh each and everytime.

imagine: 50 devices push their live monitoring data (acutally not the problem, 48 bytes only) to the gui, where the data income is linked to Ctrls (SetData, SetText, cusom Ctrls as well) for each device separately. the devices fire unsynchronously, more or less every 200 ms.
==> consequence: Refreshes over and over (even with 4 devices its a problem already), because queue is kept empty..any idea about that?

Quote:

Another possibility is changing Ctrl class.

this is what *I* want the *least*. i know of upp beeing prepared for any cases and ooptimized to the edge. i'd rather need to rethink my model.

cheers

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[Message index]

		howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Wed, 26 May 2010 13:15
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: dolik.rce on Wed, 26 May 2010 16:45
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: mr_ped on Wed, 26 May 2010 16:55
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Mindtraveller on Wed, 26 May 2010 17:20
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: sergeynikitin on Wed, 26 May 2010 18:14
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Wed, 26 May 2010 18:43
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Mindtraveller on Wed, 26 May 2010 19:57
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: dolik.rce on Thu, 27 May 2010 09:20
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Thu, 27 May 2010 23:36
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: koldo on Fri, 28 May 2010 08:12
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Fri, 11 June 2010 14:11
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: dolik.rce on Fri, 11 June 2010 16:06
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Fri, 11 June 2010 17:19
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Tue, 15 June 2010 15:00
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Tue, 15 June 2010 22:18
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: mirek on Wed, 16 June 2010 07:27
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Wed, 16 June 2010 09:56
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: dolik.rce on Wed, 16 June 2010 11:18
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: cbpporter on Wed, 16 June 2010 11:23
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Wed, 16 June 2010 12:05
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Wed, 16 June 2010 15:43
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Wed, 16 June 2010 17:17
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Wed, 16 June 2010 17:26
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Wed, 16 June 2010 18:47
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: mirek on Wed, 16 June 2010 07:26
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Fri, 28 May 2010 12:53
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Mon, 21 June 2010 16:52
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Tue, 22 June 2010 11:24
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Tue, 22 June 2010 11:45
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: Sender Ghost on Tue, 22 June 2010 15:36
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: kohait00 on Tue, 22 June 2010 17:36
		Re: howto best Ctrl Refresh handling w/ MT & very frequent refreshes By: tojocky on Tue, 22 June 2010 13:05

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