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Home » U++ Library support » ArrayCtrl, HeaderCtrl & GridCtrl » ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide

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Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide [message #40216 is a reply to message #28556]

Fri, 05 July 2013 04:05

bushman is currently offline

bushman
Messages: 134
Registered: February 2009

Experienced Member

I've been experiencing basically a very similar problem in Windows 7 lately:
I'm running a MT app that spawns a background thread to populate an ArrayCtrl, while keeping the GUI available for user inputs. If I hover the mouse quickly over the ArrayCtrl while it is getting fresh rows, it's not really difficult to reproduce the same ASSERT(!IsChild() && !IsOpen()); crash around line 568 of Win32Win.cpp. I'm GuiLock __ -ing ArrayCtrl when adding rows.
I tried this hack, as Alendar suggested in his post, and had no more crashes since then:

void Ctrl::Create0(Ctrl::CreateBox *cr)
{
	GuiLock __;
	ASSERT(IsMainThread());
	LLOG("Ctrl::Create(parent = " << (void *)parent << ") in " <<UPP::Name(this) << LOG_BEGIN);
	if (IsOpen()) {
		LLOG("Ctrl::Create0 IsOpen = True");
		Close(); // HACK
	}
	ASSERT(!IsChild() && !IsOpen());
        ...

Can someone give a hint on what is possibly going on here?
tks!

[Updated on: Fri, 05 July 2013 04:05]

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[Message index]

		ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: alendar on Tue, 07 September 2010 05:07
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: alendar on Tue, 12 October 2010 03:33
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: koldo on Wed, 13 October 2010 08:57
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: mirek on Sat, 16 October 2010 12:54
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: bushman on Fri, 05 July 2013 04:05
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: mirek on Fri, 05 July 2013 19:54
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: mirek on Sat, 06 July 2013 11:37
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: bushman on Sat, 06 July 2013 17:39
		Re: ArrayCtrl: GPF when thread Add(), PopUpEx, and Scroll collide By: mirek on Sat, 06 July 2013 20:54

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