The QDebug class, part of the Qt framework, provides an output stream for debugging information.
Documentation can be found here
Questions tagged [qdebug]
99 questions
1
vote
0 answers
QtMessageHandler / QTextStream causes memory usage to go up?
I have installed a simple QtMessageHandler in my application:
void handleMessage(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
QString text = msg;
QString path = QCoreApplication::applicationDirPath() +…
Don Joe
- 274
- 4
- 13
1
vote
2 answers
qDebug prints a wrong number
I'm just trying to print a number using qDebug as follows:
qDebug() << QString::number(03001);
But the result is:
"1537"
If I try to print without the first zero:
qDebug() << QString::number(3001);
The result is correct:
"3001"
Why does it…
KelvinS
- 2,870
- 8
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1
vote
2 answers
Overloading QDebug in QT
In view.h file :
friend QDebug operator<< (QDebug , const Model_Personal_Info &);
In view.cpp file :
QDebug operator<< (QDebug out, const Model_Personal_Info &personalInfo) {
out << "Personal Info :\n";
return out;
}
after calling…
Jyo the Whiff
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1
vote
1 answer
Read qdebug within a test case?
In my test case, I want to assert that the output of qDebug() includes a certain string. For example, this is what my test looks like. Notice the "Bound to UDP port 34772" output from qdebug. Can I test that the substring 34772 exists in qdebug,…
Miles R
- 41
- 1
- 4
1
vote
0 answers
qDebug() output is not visible on a terminal
I use UBuntu 12.04 LTS. When I run a console application using Qt Creator an output of qDebug() is not visible on a terminal (I get only an empty terminal with a cursor). How to fix that ?
Edit1 Moreover I can't stop a program using a stop button, I…
Irbis
- 11,537
- 6
- 39
- 68
1
vote
2 answers
Segmentation fault when overloading QDebug::operator<<
I tried to overload QDebug::operator<< for std::string. I know that we can debug (using qDebug()) std::string objects using its std::string::c_str() function but I want to avoid typing .c_str each time.
Here is my attempt
#include
#include…
Ashot
- 10,807
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- 117
1
vote
1 answer
How to decide which QtMsgType message type to print
Is there any way to tell the application to print only qDebug or only qFatal messages?
B Faley
- 17,120
- 43
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1
vote
3 answers
How to print all the raw data of QImage for comparisons in the memory?
I have two QImage objects which should be equal but the result of QImage::operator== is false. So I want to print all the raw data of the two objects for the comparison. How to do that? Can it be done with qDebug()?
UniversE
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- 2
- 7
- 25
1
vote
0 answers
QDebug in friend method, with or without &?
I've been using an overload for QDebug with msvc2010 for a while:
friend QDebug &operator<<(QDebug &debug, const UsingClass &uc)
{
debug << uc.stringForStreaming();
return debug;
}
However, under MinGW with gcc 4.6.2 this signature is not…
Horst Walter
- 13,663
- 32
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0
votes
2 answers
Issues with qDebug and QString const reference
Have a class which have the following functions:
FileInfoWrapper(const QFileInfo &_fileInfo) : fileInfo(_fileInfo) {}
const QString& FileName() const { return fileInfo.fileName(); }
But when I do this:
QFileInfo info(somePath);
qDebug() <<…
chikuba
- 4,229
- 6
- 43
- 75
0
votes
3 answers
How make qDebug to write method and class name?
I want to make the qDebug or qWarning method to write the class and method name that calling them.Now I writing like below but It is hard work for all class and method in my application.Does Any one know How can I do this?
void…
mohsen
- 1,763
- 3
- 17
- 55
0
votes
2 answers
How to disable qInfo() output
I have follwing code snippet to run. In which I want to see result of qDebug() but I dont want see result of qInfo(). I want to configure it on basis, sowetimes I need those qInfo() output and sometimes not.
qInfo()<<"Info print";
…
Sachin Palande
- 27
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- 7
0
votes
1 answer
How can hex values of a QByteArray be shown without them being converted to ASCII characters
I have a short program that reads data from the serial port and stores it in a QByteArray. When I use qDebug() to show the contents of the array some of the hex values are shown as expected, eg. 0xB5 stays 0xB5, but others are changed to ASCII, eg.…
Koos
- 91
- 9
0
votes
0 answers
How to show every qDebug with new window?
I make a QT console program.
I want to show every command by new window.
How could I do that ??
main.cpp
I use system is win10 with QT.
#include
#include //在文字視窗輸出文字功能函式
#include …
user7270652
- 1
- 2
0
votes
1 answer
How to enable qDebug::noquote inside qMessageHandler?
How to enable
qDebug::noquote
inside custom message handler in Qt?
Without using qDebug().noquote()
qDebug().noquote() <<
every time.
Joe Dea
- 29
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