![source.cpp
#include <QtWidgets>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QLabel b;
b.setText("moi");
b.show();
return a.exec();
}](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Compiling Qt Apps
- 1. Compiling Qt -‐ apps Jussi Pohjolainen Tampere University of Applied Sciences
- 2. source.cpp #include <QtWidgets> int main(int argc, char *argv[]) { QApplication a(argc, argv); QLabel b; b.setText("moi"); b.show(); return a.exec(); }
- 3. Crea@ng Project • Create new projecBolder and save the source.cpp into the folder – /QtHelloWorld/source.cpp • Create plaBorm independent project file – qmake –project • Creates – /QtHelloWorld/QtHelloWorld.pro
- 4. pro? ###################################################################### # Automatically generated by qmake (3.0) ke maaliskuuta 4 10:34:14 2015 ###################################################################### TEMPLATE = app TARGET = QtHelloWorld INCLUDEPATH += . # add this! QT += widgets # Input SOURCES += source.cpp
- 5. qmake • AGer building the project – file, we well create a pla$orm specific makefile • makefile = informa@on how to build the target program (compile instruc@ons) • In Mac OS X, the qmake creates automa@cally Xcode – project files. Use: qmake -spec macx-g++ • In other systems, qmake should be enough.
- 6. qmake usage on Mac OS X
- 7. make and running • make will compile the applica@on using the instruc@ons in the makefile • AGer compila@on you can run the applica@on
- 9. Build Steps • qmake –project – Creates plaBorm independent project file • qmake – Creates plaBorm specific makefile • make – Compiles the applica@on • ./helloworld – Starts the app (depends on the plaBorm)