General and Desktop

According to "QToolTip::showText":http://qt-project.org/doc/qt-4.8/qtooltip.html#showText docs, ... bq. Shows text as a tool tip, with the global position pos as the point of interest So you need to map widget coordinates to global : "QWidget::mapToGlobal":http://qt-project.org/doc/qt-4.8/qwidget.html#mapToGlobal

There is unfortunately no support for timeouts yet; but feel free to "vote for it":https://bugreports.qt-project.org/browse/QTBUG-3443.

You can grab a usable build from http://builds.qt-project.org/

You are right. Due I was serializing the objects in some point of the process, even when the variables contain the same information, for the program they seem to be two different objects. I will have to refactor my code to deal with this. Thank you! :)

Can you please provide some code snippets? I don't get the problem...

Pretty old posting. But I have the same question. Is he right? Doesn't a disconnect() prevent queued calls from being executed? Does the documentation describe this behaviour somewhere?

Yup, if I could create all task objects at once and then add them all to the queue, this would be the easiest solution. But there are two reasons why I don't want to do it like that: First of all, the number of tasks can be quite large, so I want to create the task objects "on demand". Secondly, the result of some of the tasks may create additional tasks, so "main" has to collect the result when a task finishes and, in some cases, append new tasks. That's why I was looking for a QThreadPool::waitForOne() or QThreadPool::waitForN(x) method. I think "my" solution does emulate a waitForOne() and it works for my application. I haven't implemented the "semaphore" solution yet. I guess something like "N = 2 * maxThreadCount()" would be sufficient. But I doubt I would see a noteworthy speed-up in my application, because tasks run for 1-2 seconds and the overhead should be negligible. Doesn't need to be the "optimal" solution for everybody. Still I think QThreadPool::waitForOne() could be useful...

Still gives the same errors. Looks like it is time to do this in MSVC...

I do @#include <QSystemDeviceInfo>@ twice - in header and in .cpp file. Be sure to have correct .pro file: @CONFIG += mobility MOBILITY += systeminfo @ Learn the basis!

I did some initial search and found "qtestlog.cpp":http://qt.gitorious.org/qt/qt/blobs/HEAD/src/testlib/qtestlog.cpp that uses a messageHandler. Is the any way to access this messageHandler while running out QTest::qExec() function. I also found "this":https://bugreports.qt-project.org/browse/QTBUG-525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Thanks Lukas for the reply. However, I am not able to understand how to install it on my Qt Directory (/home/pkr/QtSDK/...). I have downloaded the "Qt sources from here":http://releases.qt-project.org/qt4/source/qt-everywhere-opensource-src-4.8.2.zip. Can you please help me out how to do that. I am waiting for your reply. I am a novice please forgive me for stupid question :(

Ah yes, my bad. I forgot that you were using message boxes, which do indeed require QApplication.

Valid point. I've been an idiot and missed it out. Was looking just into edit. Cheers. Will give that a go and see if it solves the issue.

I'm not sure how that method can help me. I ended up looking at the source code for QTreeView, and it appears that the logical column with the disclosure triangle is hard coded to 0. I am able to use moveSection() to swap the first and second columns, but on Windows it doesn't draw the highlight or mouseover effects properly, although I'm sure that can be changed with a stylesheet. However, for now I'm just going to put the checkbox into the disclosure column. Maybe later I'll separate it out again but this layout actually saves more space. Really all I want is an equivalent to NSOutlineView's setOutlineTableColumn method.

Thank you. I have applied the patch with quilt. But the make process isn't successful anymore. After 15 minutes it crashes.

No, it did not. I needed to edit and add include links. I added #include <QDeclarativeEngine> and #include <QDeclarativeNetworkAccessManagerFactory>. I edited network links (needed to add <QtNetwork/xxxx before).