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The following class members are obsolete. They are provided to keep old source code working. We strongly advise against using them in new code.
Use QMessageBox::StandardButton instead.
Constructs a message box with a title, a text, an icon, and up to three buttons.
The icon must be one of the following:
Each button, button0, button1 and button2, can have one of the following values:
Use QMessageBox::NoButton for the later parameters to have fewer than three buttons in your message box. If you don't specify any buttons at all, QMessageBox will provide an Ok button.
One of the buttons can be OR-ed with the QMessageBox::Default flag to make it the default button (clicked when Enter is pressed).
One of the buttons can be OR-ed with the QMessageBox::Escape flag to make it the cancel or close button (clicked when Esc is pressed).
QMessageBox mb("Application Name",
"Hardware failure.\n\nDisk error detected\nDo you want to stop?",
QMessageBox::Question,
QMessageBox::Yes | QMessageBox::Default,
QMessageBox::No | QMessageBox::Escape,
QMessageBox::NoButton);
if (mb.exec() == QMessageBox::No) {
// try again
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
The parent and f arguments are passed to the QDialog constructor.
See also setWindowTitle(), setText(), and setIcon().
Returns the text of the message box button button, or an empty string if the message box does not contain the button.
Use button() and QPushButton::text() instead.
See also setButtonText().
Opens a critical message box with the given title and text. The dialog may have up to three buttons. Each of the button parameters, button0, button1 and button2 may be set to one of the following values:
If you don't want all three buttons, set the last button, or last two buttons to QMessageBox::NoButton.
One button can be OR-ed with QMessageBox::Default, and one button can be OR-ed with QMessageBox::Escape.
Returns the identity (QMessageBox::Ok, or QMessageBox::No, etc.) of the button that was clicked.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also information(), question(), and warning().
This is an overloaded member function, provided for convenience.
Displays a critical error message box with the given title and text, as well as one, two, or three buttons. Returns the number of the button that was clicked (0, 1 or 2).
button0Text is the text of the first button, and is optional. If button0Text is not supplied, "OK" (translated) will be used. button1Text is the text of the second button, and is optional, and button2Text is the text of the third button, and is optional. defaultButtonNumber (0, 1 or 2) is the index of the default button; pressing Return or Enter is the same as clicking the default button. It defaults to 0 (the first button). escapeButtonNumber is the index of the Escape button; pressing Escape is the same as clicking this button. It defaults to -1; supply 0, 1, or 2 to make pressing Escape equivalent to clicking the relevant button.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also information(), question(), and warning().
Opens an information message box with the given title and the text. The dialog may have up to three buttons. Each of the buttons, button0, button1 and button2 may be set to one of the following values:
If you don't want all three buttons, set the last button, or last two buttons to QMessageBox::NoButton.
One button can be OR-ed with QMessageBox::Default, and one button can be OR-ed with QMessageBox::Escape.
Returns the identity (QMessageBox::Ok, or QMessageBox::No, etc.) of the button that was clicked.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also question(), warning(), and critical().
This is an overloaded member function, provided for convenience.
Displays an information message box with the given title and text, as well as one, two or three buttons. Returns the index of the button that was clicked (0, 1 or 2).
button0Text is the text of the first button, and is optional. If button0Text is not supplied, "OK" (translated) will be used. button1Text is the text of the second button, and is optional. button2Text is the text of the third button, and is optional. defaultButtonNumber (0, 1 or 2) is the index of the default button; pressing Return or Enter is the same as clicking the default button. It defaults to 0 (the first button). escapeButtonNumber is the index of the escape button; pressing Esc is the same as clicking this button. It defaults to -1; supply 0, 1 or 2 to make pressing Esc equivalent to clicking the relevant button.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also question(), warning(), and critical().
Opens a question message box with the given title and text. The dialog may have up to three buttons. Each of the buttons, button0, button1 and button2 may be set to one of the following values:
If you don't want all three buttons, set the last button, or last two buttons to QMessageBox::NoButton.
One button can be OR-ed with QMessageBox::Default, and one button can be OR-ed with QMessageBox::Escape.
Returns the identity (QMessageBox::Yes, or QMessageBox::No, etc.) of the button that was clicked.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also information(), warning(), and critical().
This is an overloaded member function, provided for convenience.
Displays a question message box with the given title and text, as well as one, two or three buttons. Returns the index of the button that was clicked (0, 1 or 2).
button0Text is the text of the first button, and is optional. If button0Text is not supplied, "OK" (translated) will be used. button1Text is the text of the second button, and is optional. button2Text is the text of the third button, and is optional. defaultButtonNumber (0, 1 or 2) is the index of the default button; pressing Return or Enter is the same as clicking the default button. It defaults to 0 (the first button). escapeButtonNumber is the index of the Escape button; pressing Escape is the same as clicking this button. It defaults to -1; supply 0, 1 or 2 to make pressing Escape equivalent to clicking the relevant button.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also information(), warning(), and critical().
Sets the text of the message box button button to text. Setting the text of a button that is not in the message box is silently ignored.
Use addButton() instead.
See also buttonText().
Returns the pixmap used for a standard icon. This allows the pixmaps to be used in more complex message boxes. icon specifies the required icon, e.g. QMessageBox::Question, QMessageBox::Information, QMessageBox::Warning or QMessageBox::Critical.
Call QStyle::standardIcon() with QStyle::SP_MessageBoxInformation etc. instead.
Opens a warning message box with the given title and text. The dialog may have up to three buttons. Each of the button parameters, button0, button1 and button2 may be set to one of the following values:
If you don't want all three buttons, set the last button, or last two buttons to QMessageBox::NoButton.
One button can be OR-ed with QMessageBox::Default, and one button can be OR-ed with QMessageBox::Escape.
Returns the identity (QMessageBox::Ok or QMessageBox::No or ...) of the button that was clicked.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also information(), question(), and critical().
This is an overloaded member function, provided for convenience.
Displays a warning message box with the given title and text, as well as one, two, or three buttons. Returns the number of the button that was clicked (0, 1, or 2).
button0Text is the text of the first button, and is optional. If button0Text is not supplied, "OK" (translated) will be used. button1Text is the text of the second button, and is optional, and button2Text is the text of the third button, and is optional. defaultButtonNumber (0, 1 or 2) is the index of the default button; pressing Return or Enter is the same as clicking the default button. It defaults to 0 (the first button). escapeButtonNumber is the index of the Escape button; pressing Escape is the same as clicking this button. It defaults to -1; supply 0, 1, or 2 to make pressing Escape equivalent to clicking the relevant button.
If parent is 0, the message box is an application modal dialog box. If parent is a widget, the message box is window modal relative to parent.
Warning: Do not delete parent during the execution of the dialog. If you want to do this, you should create the dialog yourself using one of the QMessageBox constructors.
See also information(), question(), and critical().
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