帮我看看代码 入门级Qt

duanlin

dialog.h :

#ifndef MYDIALOG #define MYDIALOG #include <QDialog> #include <QProgressBar> class myDialog : public QDialog {         Q_OBJECT public:         myDialog(QWidget *parent = 0);         private slots:         void stepon(void); private:         QPushButton *myButton;         QProgressBar *myProgressBar; }; #endif

dialog.cpp:

#include <QtGui> #include "dialog.h" myDialog::myDialog(QWidget *parent)         : QDialog(parent) {         myButton = new QPushButton(tr("&stepon"));         myProgressBar = new QProgressBar;         connect(myButton,SIGNAL(cliked()),this,SLOT(stepon()));                 myProgressBar -> setValue(23);         QVBoxLayout *vLayout = new QVBoxLayout;         vLayout -> addWidget(myButton);         vLayout -> addWidget(myProgressBar);         setLayout(vLayout); } void myDialog::stepon(void) {         myProgressBar -> reset(); }

main.cpp:

#include <QApplication> #include "dialog.h" int main(int argc,char *argv[]) {         QApplication app(argc,argv);         myDialog *dialog = new myDialog;         dialog -> show();         return app.exec(); }

结果按纽并不起作用？

duanlin

connect(myButton,SIGNAL(cliked()),this,SLOT(stepon()));

已经解决，问题在拼写错误 cliked() 应为 clicked()

可是编译可以正常通过，并没有说找不到 cliked() 函数。
望引起注意。

pcwkt

原帖由 duanlin 于 2009-2-12 09:32 发表


已经解决，问题在拼写错误 cliked() 应为 clicked()

可是编译可以正常通过，并没有说找不到 cliked() 函数。
望引起注意。

#include <QApplication> #include <QPushButton> int main(int argc, char *argv[]) {      QApplication app(argc, argv);      QPushButton *button = new QPushButton("Quit");      QObject::connect(button, SIGNAL(clicked()),                       &app, SLOT(quit()));      button->show();      return app.exec(); }

-0-$ g++ -o /tmp/test.E test/helloqt.cpp -E -DQT_SHARED -I/usr/include/qt4 -I/usr/include/qt4/QtGui -lQtGui -D_GNU_SOURCE -Wall -0-$ cat /tmp/test.E |grep -B5 -A6  "QObject::connect(" private:     QObject(const QObject &); QObject &operator=(const QObject &);     }; inline bool QObject::connect(const QObject *asender, const char *asignal,                              const char *amember, Qt::ConnectionType atype) const { return connect(asender, asignal, this, amember, atype); } class __attribute__((visibility("default"))) QObjectUserData { public: -- # 3 "test/helloqt.cpp" 2 int main(int argc, char *argv[]) {      QApplication app(argc, argv);      QPushButton *button = new QPushButton("Quit");      QObject::connect(button, "2""clicked()",                       &app, "1""quit()");      button->show();      return app.exec(); }