使用QAxWidget在qt中记录完成的信号
使用QAxWidget在qt中记录完成的信号
提问于 2017-12-27 15:14:54
我在/ Examples /activeqt/webbrowser中使用了qt内置示例，并尝试使用DocumentComplete SIGNAL。我的目的是在QAxWidget中使用嵌入式Internet explorer，并在DocumentComplete之后弹出一条消息(内容来自网站)。NavigateComplete信号不够好，不适合我使用...
代码可以在这里看到：qt Web browser Example
class MainWindow : public QMainWindow, public Ui::MainWindow
{
Q_OBJECT
public:
MainWindow();
public slots:
void on_WebBrowser_TitleChange(const QString &title);
void on_WebBrowser_ProgressChange(int a, int b);
void on_WebBrowser_CommandStateChange(int cmd, bool on);
void on_WebBrowser_BeforeNavigate();
void on_WebBrowser_NavigateComplete(const QString &address);
void on_WebBrowser_DocumentComplete(IDispatch*,QVariant&)
void on_actionGo_triggered();
void on_actionNewWindow_triggered();
void on_actionAddBookmark_triggered();
void on_actionAbout_triggered();
void on_actionAboutQt_triggered();
void on_actionFileClose_triggered();
private:
QProgressBar *m_progressBar;
};
MainWindow::MainWindow()
{
setupUi(this);
connect(m_addressEdit, SIGNAL(returnPressed()), actionGo, SLOT(trigger()));
connect(actionBack, SIGNAL(triggered()), WebBrowser, SLOT(GoBack()));
connect(actionForward, SIGNAL(triggered()), WebBrowser, SLOT(GoForward()));
connect(actionStop, SIGNAL(triggered()), WebBrowser, SLOT(Stop()));
connect(actionRefresh, SIGNAL(triggered()), WebBrowser, SLOT(Refresh()));
connect(actionHome, SIGNAL(triggered()), WebBrowser, SLOT(GoHome()));
connect(actionSearch, SIGNAL(triggered()), WebBrowser, SLOT(GoSearch()));
connect(WebBrowser,SIGNAL(DocumentComplete(IDispatch*,QVariant&), this, SLOT(on_WebBrowser_DocumentComplete(IDispatch*,QVariant&)))
}
void MainWindow::on_WebBrowser_DocumentComplete(IDispatch*,QVariant&)
{
QMessangeBox x;
x.setText("pop-up");
x.exec();
}配音员说:没有这样的槽MainWindow::on_WebBrowser_DocumentComplete(IDispatch*，QVariant&)
回答 2
Stack Overflow用户
回答已采纳
发布于 2017-12-31 14:34:57
我通过重新生成.moc文件解决了这个问题。在构建配置下，qmake的文件夹位置是错误的。通过将其更正为项目位置，修复了我的问题。现在可以识别该插槽。感谢大家的帮助。
Qt Build Configuration
Stack Overflow用户
发布于 2017-12-29 00:53:48
只要解决方法需要的不仅仅是注释：
MyWidgetUsesActiveX::MyWidgetUsesActiveX()
{
///
connect(m_pActiveX, SIGNAL(signal(const QString&, int, void*)),
this, SLOT(activexEventHandler(const QString&, int, void*)));
}
void MyWidgetUsesActiveX::activexEventHandler(
const QString &name, int argc, void *argv)
{
VARIANTARG *params = (VARIANTARG*)argv;
// See what events fired
qDebug() << "Event:" << name << "argc:" << argc;
// some concrete example
if (name == "OnRemoteWindowDisplayed")
{
// Extract parameters
_variant_t varValue = params[argc-1];
bool bDisplayed = (bool)varValue;
// hwnd
varValue = params[argc-2];
int iResult = (int)varValue;
varValue = params[argc-3];
int windowAttribute = (int) varValue;
// CALL that stubborn slot we cannot have called otherwise
onRemoteWindowDisplayed(bDisplayed, iResult, windowAttribute);
}
else if (name == "OnSomethingElse")
{
// extract concrete parameters and call the handler from here
// onSomethingElse(param1, param2, param3);
}
else
{
// Log it?
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/47987953
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