[提问]如何选择QDialogButtonBox的信号与槽

[e98123]

1、UI中设计了一个QDialogButtonBox，按钮为Cancel和Apply；

2、构造函数连接：
connect(ui->buttonBox, SIGNAL(accepted()), this, SLOT(slotButtonA()));
connect(ui->buttonBox, SIGNAL(rejected()), this, SLOT(slotButtonB()));
以上Cancel按钮能成功响应slotButtonB()，Apply按钮无响应

3、尝试改变slotButtonA()的信号
connect(ui->buttonBox, SIGNAL(clicked(QAbstractButton*)), this, SLOT(slotButtonA()));
connect(ui->buttonBox, SIGNAL(rejected()), this, SLOT(slotButtonB()));
此时则Cancel按钮是先响应了slotButtonA()，后再响应slotButtonB()，而Apply按钮能成功响应

4、自定义的槽内容为
void Test::slotButtonA()
{
QMessageBox::warning(NULL, tr("title"), tr("A"));
}

void Test::slotButtonB()
{
QMessageBox::warning(this, tr("title"), tr("B"));
}

请问应如何能使UI中的QDialogButtonBox按钮，正确地实现响应？

[信念]

buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
                                      | QDialogButtonBox::Cancel);

     connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
     connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

[e98123]

[Quote=引用 1 楼 prochsh 的回复:]
C/C++ code

buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
| QDialogButtonBox::Cancel);

connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept……
[/Quote]
对于按钮为Cancel和Apply时没用；

[e98123]

自行查询帮助搞掂。

connect(ui->buttonBox->button(QDialogButtonBox::Cancel), SIGNAL(clicked()), this, SLOT(slotButtonCancel()));
connect(ui->buttonBox->button(QDialogButtonBox::Apply), SIGNAL(clicked()), this, SLOT(slotButtonOk()));