1.獲取開啟檔案的檔案路徑

//獲取開啟檔案的檔案路徑--父視窗，視窗名稱，開啟路徑，檔案篩選
QString s = QFileDialog::getOpenFileName(this,"open file dialog","/","C++ files(*.cpp)::C files(*.c)::Head files(*.h)");

2.開啟顏色管理器，獲取選中的顏色

//開啟顏色管理器，獲取選中的顏色，並改變QFrame的顏色為選中的顏色
QColor c = QColorDialog::getColor(Qt::blue);
if(c.isValid())
{
    QFrame *frame=
 
new QFrame;
    frame->setFrameShape(QFrame::Box);
    frame->setAutoFillBackground(true);
	frame->setPalette(QPalette(c));
}

3.開啟字型設定對話方塊，返回設定的字型

//開啟字型設定對話方塊，返回設定的字型
bool ok;
QFont f = QFontDialog::getFont(&ok);
if (ok)
{
	//lineEdit->setFont(f);
}

4.使用者自定義對話方塊

//使用者自定義對話方塊，並返回使用者點選的按鈕
 

QMessageBox customMsgBox;
customMsgBox.setWindowTitle(tr("使用者自定義訊息框"));

QPushButton *yesBtn=customMsgBox.addButton(tr("Yes"),QMessageBox::ActionRole);
QPushButton *noBtn=customMsgBox.addButton(tr("No"),QMessageBox::ActionRole);
QPushButton *cancelBtn=customMsgBox.addButton(QMessageBox::Cancel);

customMsgBox.
 
setText(tr("這是一個使用者自定義訊息框!"));
customMsgBox.setIconPixmap(QPixmap("Qt.png"));
customMsgBox.exec();

if(customMsgBox.clickedButton()==yesBtn)
	return 1;
if(customMsgBox.clickedButton()==noBtn)
	return 0;
if(customMsgBox.clickedButton()==cancelBtn)
	return 2;
return;

5.標準訊息對話方塊

//1.QuestionMessageBox
int tempnum = 1;
switch(QMessageBox::question(this,tr("Question框"),
	  tr("修改完成，是否要結束程式？"),
	  QMessageBox::Ok|QMessageBox::Cancel,QMessageBox::Ok))
{
case QMessageBox::Ok:
	tempnum = 1;
	break;
case QMessageBox::Cancel:
	tempnum = 0;
	break;
default:
	break;
}
return tempnum;

//2.informationMessageBox
QMessageBox::information(this,tr("Information框"),tr("這是Information框"));

//3.warningMessageBox
int tempnum = 1;
switch(QMessageBox::warning(this,tr("Warning框"),
	 tr("您修改的內容還未儲存，是否要儲存？"),
	 QMessageBox::Save|QMessageBox::Discard|QMessageBox::Cancel,
	 QMessageBox::Save))
{
case QMessageBox::Save:
	tempnum = 1;
	break;
case QMessageBox::Discard:
	tempnum = 2;
	break;
case QMessageBox::Cancel:
	tempnum = 0;
	break;
default:
	break;
}
return tempnum;

//4.criticalMessageBox--錯誤訊息框
QMessageBox::critical(this,tr("Critical訊息框"),tr("Critical框測試！"));

//5.aboutMessageBox
QMessageBox::about(this,tr("About訊息框"),tr("About框測試！"));

6.標準輸入對話方塊

//1.字串
bool ok;
QString text=QInputDialog::getText(this,tr("標準輸入對話方塊"),tr("請輸入XXXX："), QLineEdit::Normal,"預設內容",&ok);
if (ok && !text.isEmpty())
	return text;

//2.下拉框
QStringList SexItems;
SexItems << tr("男") << tr("女");

bool ok;
QString SexItem = QInputDialog::getItem(this, tr("標準條目選擇對話方塊"),
  tr("請選擇性別："), SexItems, 0, false, &ok);
if (ok && !SexItem.isEmpty())
	return SexItem;

//3.int型
bool ok;
int age = QInputDialog::getInt(this, tr("標準int型別輸入對話方塊"),
 tr("請輸入年齡："), ageLabel2->text().toInt(&ok), 0, 100, 1, &ok);
if (ok)
	ageLabel2->setText(QString(tr("%1")).arg(age));

//4.double型
bool ok;
double score = QInputDialog::getDouble(this, tr("標準double型別輸入對話方塊"),
 tr("請輸入成績："),scoreLabel2->text().toDouble(&ok), 0, 100, 1, &ok);
if(ok)
	scoreLabel2->setText(QString(tr("%1")).arg(score));