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Questions tagged [qfileinfo]

In the QT platform, the QFileInfo class provides system-independent file information.

The QFileInfo class provides system-independent file information.

QFileInfo provides information about a file's name and position (path) in the file system, its access rights and whether it is a directory or symbolic link, etc. The file's size and last modified/read times are also available. QFileInfo can also be used to obtain information about a Qt resource.

http://qt-project.org/doc/qt-5/qfileinfo.html

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Get relative path from a file in Qt

I am trying to get the relative path from files that I would like to write. Here a situation: I save a conf file in D:\confs\conf.txt. I have in my programs some files read from D:\images\image.bmp. In my conf.txt I would like to have…
user3627590
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How to move a file to another existing directory in Qt

I am a beginner in Qt, one part of my project is moving a existing file to another existing directory? Can someone gives me a specific example? I am not sure whether I should use Qfile::rename(). I try write like…
innocent boy
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Set file owner:group in Linux using Qt/C++

I need to change the owner and group of a file under Linux using Qt 5.7 /C++. I found the QFileInfo::ownerID and QFileInfo::groupID getters, but there appear to be no setters for these values. I need the Qt equivalent of chown. Is there a way to…
TSG
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Qt's QDir: File Names Dropping Non-Ascii Characters

I am having issues with QDir losing Non-Ascii characters from my file names. I have files with names like testingöäüß.txt or exampleΦ.shp and when trying to use Qt utilities like QDir and QFile they simply show up as testing.txt and example.shp.…
cheddarhead52
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Porting from Glib to Qt

I am porting an application from Glib to Qt. I do have a lot of API specific to Gtk, but it's difficult to find the equivalent variants in Qt. I am looking for the alternative of these: g_path_get_basename g_path_get_dirname strdup Any idea?
Seb
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last modified date of file in Qt resource system

Normally you can get last modified date easily with QFileInfo::lastModified(). However this doesn't work when a file inside Qt's resource system is used QFileInfo resourceInfo("://resource.txt"); qDebug() << resourceInfo.lastModified().toString() //…
Hedge
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QFileInfo size() is returning shortcut TARGET size

I am scanning folder size like this: qint64 dirSize = 0; int fileCount = 0; for(QDirIterator itDir(someDir, QDir::NoDotAndDotDot|QDir::Files|QDir::Hidden|QDir::System, QDirIterator::Subdirectories); itDir.hasNext(); ) { …
bur
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Unsorted Qt containers

I have a QVector, which should store filepaths,…
Sayan Bera
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getOpenFileName - preselect last opened not working

In my application I need to load many images. I would really use an option to select the last opened file, so I would like to know the last selected file. Documentation says: QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"), …
Pawel
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Trigger signal when file size limit is reached

I'm writing log files and would like to set a size limit of 10 Mo. I was thinking of setting a QTimer triggering every X minutes/hours QFileInfo::refresh and checking the size of the file. Would there be a better way to do this? Using a QTimer…
Grégoire Borel
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How to get the file version in Qt?

How to get the file version from File properties\Details\File version in Qt? I didn't find it in QFileInfo.
Hurr
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Adjust copied file's QDateTime to that of the source file

Context: I have an application that searches files in a directory(s)and copies specific files. Problem: Using FileCopyExW, I copy the file(s) successfully to the new location, however the file's date and time to not match, it may be off by a second…
CybeX
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PyQt5 set qt_ntfs_permission_lookup

I want to use isWritable() from QFileInfo. According to the docs, you have to somehow set qt_ntfs_permission_lookup to 1 to get a meaningful result on Windows. The C++ code for this is extern Q_CORE_EXPORT int…
bfris
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Getting a file icon solely from a given MIME-type (no file itself) in Qt

Ok, I know about the class QFileIconProvider. I also know about QMimeType (and QMimeDatabase). But I am surprised that I cannot find a simple connection between the two. So what I need is to get an icon used by the operating system for a given type…
Maximko
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How to Search a file in QDir

I am developing an Application for MAC OS X. In which I have to find files in folder. Problem is that I want to give comfort, to user, to search a file by entering a QString. This QString may be the exact name of file or a text contain in the file…
Rohit Chauhan
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