Qt Buttons/zh: Difference between revisions
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=== QToolButton === | === QToolButton === | ||
[http://doc.qt.nokia.com/4.7/qtoolbutton.html QToolButton] | [http://doc.qt.nokia.com/4.7/qtoolbutton.html QToolButton] 提供了一个"快速-获取"的按钮组合，它们通常被用于一个 [http://doc.qt.nokia.com/4.7/qtoolbar.html之中。 QToolBar] | ||
[[Image:http://doc.qt.nokia.com/4.7/images/assistant-toolbar.png|button inside toolbar]] | [[Image:http://doc.qt.nokia.com/4.7/images/assistant-toolbar.png|button inside toolbar]] | ||
Latest revision as of 13:23, 23 August 2015
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Qt中的按钮
概览
作为一个高级的GUI创建框架，Qt提供了丰富多样的按钮以满足不同的需求。Qt中的这些类继承自 QAbstractButton ，并且实现了不同类型的按钮。QAbstractButton继承自 QWidget ，它是按钮部件类的抽象基类。
信号
QAbstractButton提供下列信号：
- void clicked ( bool checked = false )
- void pressed ()
- void released ()
- void toggled ( bool checked )
按钮的类型
QPushButton
QPushButton 是一个用于命令按钮的可定制部件。阅读 怎样使用QPushButton 系列文章，以了解更多的关于这方面的信息和例子。
QCheckBox
QCheckBox 是一个看上去像是旁边有一个文本标签的复选框按钮。
QRadioButton
QRadioButton 是一个带有一个文本标签的单选按钮。
QToolButton
QToolButton 提供了一个"快速-获取"的按钮组合，它们通常被用于一个 QToolBar
