Qt / C ++ QTableWidget：当头被双击时做某事 [英] Qt/C++ QTableWidget: Doing something when a header is doubleclicked

问题描述

我有一个QTableWidget在我的形式，我想做一些事情，当用户双击行或列的标题。我使用以下connect语句：

I have a QTableWidget in my form and I want to do something when a user doubleclicks on the header of a row or column. I am using the following connect statement:

connect(ui->tblResults->horizontalHeader(),SIGNAL(doubleClicked(QModelIndex)),this,SLOT(tableDoubleClicked(QModelIndex)));

其中此是窗口类和ui - > tblResults是窗体窗体上的QTableWidget。当我尝试双击标题，没有任何反应。我连接的插槽是：

Where this is the window class and ui->tblResults is the QTableWidget on the window's form. When I try doubleclicking the header, nothing happens. The slot I'm connecting to is:

void wndSearch::tableDoubleClicked(QModelIndex tmp){
    QMessageBox::information(0,"DERP!","TEST");
}

很简单，只是测试看看插槽是否被调用。我从来没有收到这个消息框。我没有得到任何运行时错误connect（）调用。

Very simple, just testing to see if the slot gets called. I never receive this messagebox. I am not getting any runtime error on the connect() call.

我使用错误的信号吗？还有别的错误吗？如果您需要更多信息，请告诉我们，感谢您的帮助！

Am I using the wrong signal? Is something else wrong? Please let me know if you need anymore information, and thanks for the help!

freenode的#qt中的某人帮助了我。 SIGNAL我在寻找是sectionDoubleClicked（int）

[edit] Someone in #qt on freenode helped me out. SIGNAL I was looking for was sectionDoubleClicked(int)

推荐答案

http://doc.qt.nokia.com/latest/qheaderview.html#sectionDoubleClicked

您可以通过 QTableWidget :: horizo​​ntalHeader（）或 QTableWidget获取 QHeaderView :: verticalHeader（）。

You can get the QHeaderView via QTableWidget::horizontalHeader() or QTableWidget::verticalHeader().

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