內容

• 公共函數
• 重實現公共函數
• 詳細描述

QIconEnginePluginV2 Class

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

頭：	#include <QIconEnginePluginV2>
Since:	Qt 4.3
繼承：	QObject

• 所有成員列錶，包括繼承成員

公共函數

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

重實現公共函數

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

• 29 公共函數繼承自 QObject

額外繼承成員

• 1 特性繼承自 QObject
• 1 公共槽繼承自 QObject
• 1 信號繼承自 QObject
• 7 靜態公共成員繼承自 QObject
• 8 保護函數繼承自 QObject

詳細描述

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

Icon engine plugins produces QIconEngine 對於 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 概述文檔 ).

另請參閱 如何創建 Qt 插件 .

成員函數文檔編製

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.

從不需要明確調用這。Qt 自動銷毀插件當不再使用時。

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

創建並返迴 QIconEngine object for the icon with the given filename .

另請參閱 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.

另請參閱 create ().