QDialog::reject can be invoked multiple times
When user use ESC to close the dialog and press it very quickly two or more times in a row, QDialog::reject can be invoked also multiple times. This is very dangerous and unpredictable because in case...
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Crash in QTreeWidget / QTreeView index mapping on Mac OSX 10.10 part II
As mentioned in the first part of this article, the workaround with focus unfortunately didn’t work. In some cases application is still crashing. So after next hours of debugging and unsuccessful...
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Crash in QTreeWidget / QTreeView index mapping on Mac OSX 10.10 part III
So, one more attempt. Previous articles (part1, part2) mentioned possible solutions to fix crash insinde the QTreeWidget and QAccessibleTableCell. Unfortunately, deselecting current item still doesn’t...
View ArticleQt – This application failed to start because it could not find or load the...
This application failed to start because it could not find or load the Qt platform plugin “windows”. As temporary fix, set following environment variable in VS...
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Qt 5.5.0 an Qt 5.5.1, QWebEngine, QtWebKit and ICU
Notes about compiling QtWebEngine (instead of QtWebkit) together with Qt 5.5.1 Qt 5.5.0 configure switches for ICU: configure \ -icu \ -I Q:\SharedLibraries\icu4c-51_1\icu\include \ -L...
View ArticleQml & QtQuick
Qt documentation QML Data Models, Qml Model-view QML Data models real usage (blogpost) QtQuick examples (official Qt site) – lot of examples! QtQuick mouse-keyboard events handling QtQuick...
View ArticleDebugging QML application
Batches, clip, changes and overdraw SET QSG_VISUALIZE=batches or SET QSG_VISUALIZE=clip or SET QSG_VISUALIZE=changes or SET QSG_VISUALIZE=overdraw qmlviewer test.qml Links:...
View ArticleQML Notes
Sources https://swanson.kdab.com/owncloud/index.php/s/TY9jG2D70ODOjUi F5 for instant reload, class UltraView : public QQuickView { protected: void keyPressEvent(QKeyEvent*event) override {...
View ArticleMicrosoft defender false positive
Scan library/executable against several AVs: https://www.virustotal.com/gui/home Report false-positive to Microsoft AV: https://www.microsoft.com/en-us/wdsi Report false positive & other info...
View ArticleCould not find the Qt platform plugin “xcb” in “”
Full error code: Library searching paths: - /home/dev/dev/SharedLibraries/qt/plugins qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in "" This application failed to start because no Qt...
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