QPrintDialog

Qt 5.9.0 Reference Documentation

QPrintDialog Class

The QPrintDialog class provides a dialog for specifying the printer's configuration. 更多...

头文件:	#include <QPrintDialog>
qmake:	QT += printsupport
基类:	QAbstractPrintDialog

所有的成员列表, 包括继承的成员

属性

options : PrintDialogOptions

2 个属性继承自 QDialog
59 个属性继承自 QWidget

公有函数

	QPrintDialog(QPrinter *printer, QWidget *parent = Q_NULLPTR)
	QPrintDialog(QWidget *parent = Q_NULLPTR)
	~QPrintDialog()
void	open(QObject *receiver, const char *member)
PrintDialogOptions	options() const
QPrinter *	printer()
void	setOption(PrintDialogOption option, bool on = true)
void	setOptions(PrintDialogOptions options)
bool	testOption(PrintDialogOption option) const

重新实现的公有函数

virtual void	done(int result)
virtual int	exec()
virtual void	setVisible(bool visible)

11 个公有函数继承自 QAbstractPrintDialog
8 个公有函数继承自 QDialog
216 个公有函数继承自 QWidget

信号

void	accepted(QPrinter *printer)

3 个信号继承自 QDialog
3 个信号继承自 QWidget

其他继承的成员

5 个公有槽函数继承自 QDialog
19 个公有槽函数继承自 QWidget
5 个静态公有成员继承自 QWidget
6 个受保护的函数继承自 QDialog
35 个受保护的函数继承自 QWidget
1 个受保护的槽函数继承自 QWidget

详细描述

The QPrintDialog class provides a dialog for specifying the printer's configuration.

The dialog allows users to change document-related settings, such as the paper size and orientation, type of print (color or grayscale), range of pages, and number of copies to print.

Controls are also provided to enable users to choose from the printers available, including any configured network printers.

Typically, QPrintDialog objects are constructed with a QPrinter object, and executed using the exec() function.


  QPrintDialog printDialog(printer, parent);
  if (printDialog.exec() == QDialog::Accepted) {
      // print ...
  }

If the dialog is accepted by the user, the QPrinter object is correctly configured for printing.

The printer dialog (shown above in Plastique style) enables access to common printing properties. On X11 platforms that use the CUPS printing system, the settings for each available printer can be modified via the dialog's Properties push button.

On Windows and macOS, the native print dialog is used, which means that some QWidget and QDialog properties set on the dialog won't be respected. The native print dialog on macOS does not support setting printer options, i.e. setOptions() and setOption() have no effect.

In Qt 4.4, it was possible to use the static functions to show a sheet on macOS. This is no longer supported in Qt 4.5. If you want this functionality, use QPrintDialog::open().

参见 QPageSetupDialog and QPrinter.

属性

options : PrintDialogOptions

This property holds the various options that affect the look and feel of the dialog

By default, all options are disabled.

Options should be set before showing the dialog. Setting them while the dialog is visible is not guaranteed to have an immediate effect on the dialog (depending on the option and on the platform).

This property was introduced in Qt 4.5.

访问函数:

PrintDialogOptions	options() const
void	setOptions(PrintDialogOptions options)

参见 setOption() and testOption().

成员函数

QPrintDialog::QPrintDialog(QPrinter **printer*, QWidget **parent* = Q_NULLPTR)

Constructs a new modal printer dialog for the given printer with the given parent.

QPrintDialog::QPrintDialog(QWidget **parent* = Q_NULLPTR)

Default constructs an instance of QPrintDialog.

QPrintDialog::~QPrintDialog()

Destroys the print dialog.

`[signal]` void QPrintDialog::accepted(QPrinter **printer*)

This signal is emitted when the user accepts the values set in the print dialog. The printer parameter includes the printer that the settings were applied to.

`[virtual]` void QPrintDialog::done(int result)

Reimplemented from QDialog::done().

Closes the dialog and sets its result code to result. If this dialog is shown with exec(), done() causes the local event loop to finish, and exec() to return result.

Note: This function does not apply to the Native Print Dialog on the Mac macOS and Windows platforms, because the dialog is required to be modal and only the user can close it.

参见 QDialog::done().

`[virtual]` int QPrintDialog::exec()

Reimplemented from QDialog::exec().

void QPrintDialog::open(QObject **receiver*, const char **member*)

This is an overloaded function.

Opens the dialog and connects its accepted() signal to the slot specified by receiver and member.

The signal will be disconnected from the slot when the dialog is closed.

This function was introduced in Qt 4.5.

QPrinter *QPrintDialog::printer()

Returns the printer that this printer dialog operates on. This can be useful when using the QPrintDialog::open() method.

void QPrintDialog::setOption(PrintDialogOption option, bool on = true)

Sets the given option to be enabled if on is true; otherwise, clears the given option.

参见 options and testOption().

`[virtual]` void QPrintDialog::setVisible(bool visible)

Reimplemented from QWidget::setVisible().

bool QPrintDialog::testOption(PrintDialogOption option) const

Returns true if the given option is enabled; otherwise, returns false.

参见 options and setOption().

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