内容

• 公共函数
• 重实现公共函数
• 详细描述

QIconEnginePluginV2 Class

The QIconEnginePluginV2 class provides an abstract base for custom QIconEngineV2 插件。 更多...

头：	#include <QIconEnginePluginV2>
Since:	Qt 4.3
继承：	QObject

• 所有成员列表，包括继承成员

公共函数

	QIconEnginePluginV2 (QObject * parent = 0)
	~QIconEnginePluginV2 ()

重实现公共函数

virtual QIconEngineV2 *	create (const QString & filename = QString()) = 0
virtual QStringList	keys () const = 0

• 29 公共函数继承自 QObject

额外继承成员

• 1 特性继承自 QObject
• 1 公共槽继承自 QObject
• 1 信号继承自 QObject
• 7 静态公共成员继承自 QObject
• 8 保护函数继承自 QObject

详细描述

The QIconEnginePluginV2 class provides an abstract base for custom QIconEngineV2 插件。

Icon engine plugins produces QIconEngine 对于 QIcon s; an icon engine is used to render the icon. The keys that identifies the engines the plugin can create are suffixes of icon filenames; they are returned by keys ()。 create () function receives the icon filename to return an engine for; it should return 0 if it cannot produce an engine for the file.

Writing an icon engine plugin is achieved by inheriting QIconEnginePluginV2 , reimplementing keys () 和 create (), and adding the Q_EXPORT_PLUGIN2 () 宏。

You should ensure that you do not duplicate keys. Qt will query the plugins for icon engines in the order in which the plugins are found during plugin search (see the plugins 概述文档 ).

另请参阅 如何创建 Qt 插件 .

成员函数文档编制

QIconEnginePluginV2:: QIconEnginePluginV2 ( QObject * parent = 0)

Constructs a icon engine plugin with the given parent . This is invoked automatically by the Q_EXPORT_PLUGIN2 () 宏。

QIconEnginePluginV2:: ~QIconEnginePluginV2 ()

Destroys the icon engine plugin.

从不需要明确调用这。Qt 自动销毁插件当不再使用时。

[pure virtual] QIconEngineV2 * QIconEnginePluginV2:: create (const QString & filename = QString())

创建并返回 QIconEngine object for the icon with the given filename .

另请参阅 keys ().

[pure virtual] QStringList QIconEnginePluginV2:: keys () const

Returns a list of icon engine keys that this plugin supports. The keys correspond to the suffix of the file or resource name used when the plugin was created. Keys are case insensitive.

另请参阅 create ().