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Crash in a multi-thread UI app.
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jeffcmj View Drop Down
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Joined: 28 October 2004
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    Posted: 01 April 2005 at 11:14am

I got a assert fail in a multi-thread app. There is one mainframe in one thread.

In XTPPaintManager::DrawControl
...
if (pEdit && pEdit->GetSafeHwnd() && pEdit->GetFont()!= &m_fontIcon)
...

Caused a Assert Fail. I think it's because m_fontIcon is static. Anyway to solve this problem?

Thanks



Edited by jeffcmj
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jeffcmj View Drop Down
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Points: 92 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jeffcmj Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2005 at 12:22pm
The official sample MSDI also has this problem. If I change a toolbar button to Combobox with Edit embeded, the same crash will happen.
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ICBM View Drop Down
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Points: 57 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ICBM Quote  Post ReplyReply Direct Link To This Post Posted: 04 April 2005 at 4:44pm

<Disclaimer: I have not read the source code that you say is at fault>

My thoughts would be, why are you performing gui updates on a different thread? This is 'not allowed'. Sometimes you can get away with it, but most often not. Only the thread that owns the window should do any kind of updates.
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Oleg View Drop Down
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Points: 11234 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Oleg Quote  Post ReplyReply Direct Link To This Post Posted: 06 April 2005 at 10:35am

In last 2 versions m_fontIcon is not static member (you can fix it in your sources)

+ you must use own paintmanager for each commandbars:

if (!InitCommandBars())
  return -1;

CXTPCommandBars* pCommandBars = GetCommandBars();

pCommandBars->SetPaintManager(CXTPPaintManager::CreateThe me(xtpThemeOfficeXP));
Oleg, Support Team
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