内容

• 函数
• 详细描述

QtMac Namespace

The QtMac namespace contains miscellaneous functionality specific to the macOS and iOS operating systems. 更多...

头：	#include <QtMac>
qmake:	QT += macextras
Since:	Qt 5.2

This namespace was introduced in Qt 5.2.

• 过时成员

函数

int	applicationIconBadgeNumber ()
CGContextRef	currentCGContext ()
QPixmap	fromCGImageRef (CGImageRef image )
void	setApplicationIconBadgeNumber (int number )
CGImageRef	toCGImageRef (const QPixmap & pixmap )

详细描述

函数文档编制

int QtMac:: applicationIconBadgeNumber ()

Returns the value of the application icon a.k.a badge.

另请参阅 setApplicationIconBadgeNumber () and badgeLabelText().

CGContextRef QtMac:: currentCGContext ()

Returns the current CoreGraphics context.

QPixmap QtMac:: fromCGImageRef ( CGImageRef image )

返回 QPixmap 相当于给定 image .

This function is not available in Qt 5.x until 5.0.2 and will return a null pixmap in earlier versions.

另请参阅 toCGImageRef () 和 像素图转换 .

void QtMac:: setApplicationIconBadgeNumber ( int number )

Sets the value shown on the application icon a.k.a badge to number .

Unlike its macOS counterpart, only numbers can be used.

另请参阅 applicationIconBadgeNumber () and setBadgeLabelText().

CGImageRef QtMac:: toCGImageRef (const QPixmap & pixmap )

创建 CGImageRef equivalent to the QPixmap pixmap 。返回 CGImageRef 句柄。

It is the caller's responsibility to release the CGImageRef 数据在使用后。

This function is not available in Qt 5.x until 5.0.2 and will return NULL in earlier versions.

另请参阅 fromCGImageRef ().