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$ControlActiveSetting

是一种符号，如果在某个控件激活或者处于其他预览状态时，其值为 True.

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$ControlActiveSetting

$ControlActiveSetting

是一种符号，如果在某个控件激活或者处于其他预览状态时，其值为 True.

更多信息

范例

基本范例  (2)

检测 Manipulate 中的控件何时使用：

Wolfram Language code: Manipulate[{$ControlActiveSetting, x, c}, {x, 0, 1}, {c, Red}]

大部分绘图函数用 $PerformanceGoal 来控制可视化质量：

Wolfram Language code: {Block[{$ControlActiveSetting = True}, $PerformanceGoal], Block[{$ControlActiveSetting = False}, $PerformanceGoal]}

因此实际上缺省的行为显示如下：

Wolfram Language code: Manipulate[Plot3D[Sin[(x - a)(y - a)], {x, 0, 3}, {y, 0, 3}, PerformanceGoal -> If[$ControlActiveSetting, "Speed", "Quality"]], {a, 1, 4}]
Wolfram Research (2007)，$ControlActiveSetting，Wolfram 语言函数，https://reference.wolfram.com/language/ref/$ControlActiveSetting.html.

文本

Wolfram Research (2007)，$ControlActiveSetting，Wolfram 语言函数，https://reference.wolfram.com/language/ref/$ControlActiveSetting.html.

CMS

Wolfram 语言. 2007. "$ControlActiveSetting." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/$ControlActiveSetting.html.

APA

Wolfram 语言. (2007). $ControlActiveSetting. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/$ControlActiveSetting.html 年

BibTeX

@misc{reference.wolfram_2026_$controlactivesetting, author="Wolfram Research", title="{$ControlActiveSetting}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/$ControlActiveSetting.html}", note=[Accessed: 10-September-2026]}

BibLaTeX

@online{reference.wolfram_2026_$controlactivesetting, organization={Wolfram Research}, title={$ControlActiveSetting}, year={2007}, url={https://reference.wolfram.com/language/ref/$ControlActiveSetting.html}, note=[Accessed: 10-September-2026]}