[solved] Problem with console
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Hi i have a problem with my console
I cannot display it, i had only the first message "please choose an xml....." in the application output.
This is my code, And in my project.pro i had of course add QT += gui
@
#include<QApplication>
....
int main(int argc, char *argv[])
{
QApplication a(argc, argv);MIRSpecLoad load; MIRSystem system; string fn; QString sfn; QFile f; do { std::cout<<"please choose an xml file name"<<std::endl; cin>>fn; sfn=sfn.fromUtf8(fn.c_str(),-1); QFile f(sfn); if (!(f.exists())) {cout<<"The file does not exist"<<endl; } }while (!(f.exists())); if (!load.openFile(sfn)) { std::cerr << "Failed to open the given file." << std::endl; return 0; } if(!load.parseSystem(&system)) { std::cerr << "Unable to parse system." << std::endl; return 0; }
return a.exec();
}@
Please can any one help me??
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Hi, I don't think you can use std::cout or any other std console output in combination with the QApplication. As far as I know it will block the output until you exit the application and only after that you'll see the output from std::cout.
I looked at some Qt example apps and I think they are using this to print to the console:
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std::fputs("test", stdout);
std::printf("test %d", 123);
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i don't know if that makes any difference, but you could still use QDebug to print to the console, but that is only supposed for debug out usually :D