How to display the text in the console with printf?

Purpose: Debug code CPP of cascade.

Error:

'myMessageOutput' was not declared in this scope

Question: How to declare the class Sub cascading ++?

How do printf?

Mini cod is on the bottom of

Default empty project template
#include

#include
#include
#include "applicationui.hpp".

#include
#include

#define QT_DECLARATIVE_DEBUG

using namespace bb::cascades;

void myMessageOutput;

Q_DECL_EXPORT int main (int argc, char * argv)
{
This is where the server is started.
App app (argc, argv);

qInstallMsgHandler (myMessageOutput);
#ifndef QT_NO_DEBUG
qInstallMsgHandler (myMessageOutput);
#endif

QTranslator translator;
QString locale_string is QLocale () .name ();.
QString file is QString ("SensorBB10_ %1") .arg (locale_string);.
If (translator.load (filename, "app/native/qm")) {}
app.installTranslator (& translator);
}

New ApplicationUI (&app);)

Return Application::exec();
}

void myMessageOutput (QtMsgType, const char * msg) {}
fprintf (stdout, "%s\n", msg);
fflush (stdout);
}

Thank you for your attention,

Hello

Define the function myMessageOutput before main() or, if it is applied under before main() - declare it above main():

// somewhere above main():void myMessageOutput(QtMsgType type, const char* msg);
Q_DECL_EXPORT int main(int argc, char **argv)
{
...rest of the code...
}

void myMessageOutput(QtMsgType type, const char* msg){...implementation...}

In addition, that you can call qInstallMsgHandler (myMessageOutput) twice.

It should not be used in the Release version, so you do not want to leave the only inside ifdef.

Tags: BlackBerry Developers

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