Recent questions tagged Qt

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qt - How to create scrollbar in QtQuick 2.0?

I am trying to create a scrollbar in QtQuick 2.0, I found that Scrollbar component is available in QtQuick 1.0 ... Any help? Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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618 views

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qt - Why do stylesheets not work when subclassing QWidget and using Q_OBJECT?

Case 1: Create subclass of QWidget with Q_OBJECT and set stylesheet -- no effect. Case 2: Create subclass of QWidget ... work in the case 1? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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qt - How to connect Python and QML with PySide2?

I want to write a simple desktop application on Ubuntu and I thought that an easy way was to use Qt with QML ... QtQuick way of doing things... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

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qt - How do I construct an ISO 8601 datetime in C++?

I'm working with the Azure REST API and they are using this to create the request body for table storage: ... for this, or possibly Qt? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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479 views

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qt - How to tell QWebPage not to load specific type of resources?

How to tell QWebPage not to load specific type of resources like js, css or png? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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533 views

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qt - Access C++ function from QML

I'm trying to make a little program with Qt. I have a main.cpp with the following code: #include <QtGui/ ... So what did I do wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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903 views

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qt - paintEvent in QTableView derived class: Paint device returned engine == 0, type: 1

As a follow up of Qt load indicator by animated image (aka preloader) or alternative? I try to paint inside a ... be the root cause, but why? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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803 views

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qt - How to drop a custom QStandardItem into a QListView

I am trying to get drag&drop to work between two QListViews using a custom QStandardItem. I can't find the ... drop? Thanks in advance, frank See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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qt - SQLite accent-insensitive search

Is there any way to do an accent-insensitive LIKE query in SQLite? For example, this query: SELECT * FROM ... if it makes any difference. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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892 views

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qt - How do I apply the style to a TextField in QML? It seems "style" attribute isn't available

I am trying to apply some styles to a new qt 5.7 application I am working on and the following is not working ... here it seems to just work. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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qt - Qt5 - setting background color to QPushButton and QCheckBox

I'm trying to change the background color of a QAbstractButton (either a QPushButton or QCheckBox) in Qt5 and having ... the face of the button. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

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qt - QTextEdit and colored bash-like output emulation

I have an escape sequences in a text, like char const * text = "e[1;33m" "some colored text" "e[0m"; ... and how to hide they from the output. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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740 views

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qt - How to change text alignment in QTabWidget?

I cannot find a way to set the text alignment in a QTabWidget. After I've created an instance of this ... tabSizeHint and it works well :) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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909 views

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qt - QMake - How to add and use a variable into the .pro file

I have a qmake file generated by Qt creator. I am modifying it but I do not manage to understand how to ... to declare such a variable properly? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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639 views

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qt - signals and slots in multilayered UI widgets

Let's say we have the follogin UI: +--------------------------+ |W1 +--------------+ ... have W3 itself connect to it using its own slot. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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701 views

1 answer

qt - qfiledialog - Filtering Folders?

1)I want to get the name of the folder for a folder monitoring Application.. Is there a way that i can ... folder to prevent showing it up.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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664 views

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qt - QListView takes too long to update when given 100k items

I have a problem with reading file, specific is I want to make a small dictionary. In file which I need to read ... faster. What I have to do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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872 views

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qt - qmake pre-build step before ANY compilation

There are several questions on SO regarding how to create a pre-build step for qmake, I can do that with this ... being much slower of course). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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qt - Docker for GUI-based environments?

Problem I have a set of client machines that are a part of an enterprise web application. Each machine runs ... first steps to approach that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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663 views

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qt - Automatic rescaling of an application on high-dpi Windows platform?

I'm writing a Qt application that needs to run on high-dpi Windows (192dpi instead of 96dpi). Unfortunately the ... of such apps by Windows? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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qt - How to make a column in QTableWidget read only?

I would like to have one column in QTableWidget NOT editable. In forums I have read a lot about some flags but could not manage to implement. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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773 views

1 answer

qt - How to set application's taskbar icon in Windows 7

How do I set an application's taskbar icon in PyQt4? I have tried setWindowIcon, and it successfully sets the ... ico and png. Nothing helps. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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729 views

1 answer

qt - How to use QMake's subdirs template?

I'm starting to learn Qt. I'm moving from the Visual Studio world and I am looking for a way to ... tutorial other than the official one? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

1 answer

qt - Why does calling quit() before exec() not quit the application?

Why does this program run normally and display the main window? I would expect it to exit since quit() is called ... qDebug("Hello world!"); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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771 views

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qt - Add a define to qmake WITH a value?

How do I add a define with qmake WITH a value: For example, this does not work (as I expected) in my ... way by compilation or include order? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

1 answer

qt - QListView/QListWidget with custom items and custom item widgets

I'm writing a PyQt application and am having some trouble creating a custom list view. I'd like the list ... more than painting a widget. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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