QPrintPreviewDialog ¶

概要 ¶

详细描述 ¶

使用 QPrintPreviewDialog in your existing application is straightforward:

1. Create the QPrintPreviewDialog .

   You can construct a QPrintPreviewDialog with an existing QPrinter object, or you can have QPrintPreviewDialog create one for you, which will be the system default printer.

2. Connect the paintRequested() signal to a slot.

   When the dialog needs to generate a set of preview pages, the paintRequested() signal will be emitted. You can use the exact same code for the actual printing as for having the preview generated, including calling newPage() to start a new page in the preview. Connect a slot to the paintRequested() signal, where you draw onto the QPrinter object that is passed into the slot.

3. 调用 exec() .

   调用 exec() to show the preview dialog.

另请参阅

QPrinter QPrintDialog QPageSetupDialog QPrintPreviewWidget

class QPrintPreviewDialog ( printer [ , parent=None [ , flags=Qt.WindowFlags() ] ] ) ¶

QPrintPreviewDialog([parent=None[, flags=Qt.WindowFlags()]])

param parent

QWidget

param flags

WindowFlags

param printer

QPrinter

构造 QPrintPreviewDialog 基于 printer 和采用 parent as the parent widget. The widget flags flags are passed on to the QWidget 构造函数。

另请参阅

setWindowFlags()

这是重载函数。

This will create an internal QPrinter object, which will use the system default printer.

PySide2.QtPrintSupport.QPrintPreviewDialog. open ( receiver , member ) ¶

参数

• receiver – QObject

• member – str

这是重载函数。

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

信号将断开槽连接，当对话框被关闭时。

PySide2.QtPrintSupport.QPrintPreviewDialog. paintRequested ( printer ) ¶

参数

printer – QPrinter

PySide2.QtPrintSupport.QPrintPreviewDialog. printer ( ) ¶

返回类型

QPrinter

返回指针指向 QPrinter object this dialog is currently operating on.