Cocoa 中的 UpdateSystemActivity 等价物是什么？

发布于 2024-08-02 17:04:17 字数 1772 浏览 11 评论 0原文

我正在将 Carbon 应用程序转换为 Cocoa 应用程序，但找不到与 Cocoa 等效的应用程序：

UpdateSystemActivity(UsrActivity);

有 Mac 用户愿意为我指出正确的方向吗？谢谢。

更新：我正在构建 64 位。构建 32 位工作正常，但当我构建 64 位时，我收到 UpdateSystemActivity（和其他）的符号未在此范围内声明的错误。

更新2：我正在导入以下内容：

#import <Cocoa/Cocoa.h>
#import <Carbon/Carbon.h>
#import <OpenGL/CGLMacro.h>

构建 64 位时还需要导入其他内容吗？

UPDATE3：添加#import 没有帮助。我仍然收到编译器错误，告诉我 UpdateSystemActivity 和 UsrActivity 未在此范围内声明。

更新4：好的，在 OSServices/Power.h 上找不到文件。我正在针对 10.5 SDK 进行构建，快速搜索显示：

$ pwd
/Developer/SDKs
$ find . -name Power.h
./MacOSX10.3.9.sdk/Developer/Headers/CFMCarbon/OSServices/Power.h
./MacOSX10.3.9.sdk/Developer/Headers/CFMCarbon/Power.h
./MacOSX10.3.9.sdk/Developer/Headers/FlatCarbon/Power.h
./MacOSX10.3.9.sdk/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/Headers/Power.h

./MacOSX10.4u.sdk/Developer/Headers/CFMCarbon/OSServices/Power.h
./MacOSX10.4u.sdk/Developer/Headers/CFMCarbon/Power.h
./MacOSX10.4u.sdk/Developer/Headers/FlatCarbon/Power.h
./MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/Headers/Power.h

./MacOSX10.5.sdk/Developer/Headers/FlatCarbon/Power.h
./MacOSX10.5.sdk/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/Headers/Power.h

但我得到：

Mac.mm:6:29: error: OSServices/Power.h: No such file or directory
Mac.mm:6:29: error: OSServices/Power.h: No such file or directory

原文

I'm converting a Carbon app to a Cocoa app and I can't find the Cocoa equivalent for:

UpdateSystemActivity(UsrActivity);

Any Mac people out there care to point me in the right direction? Thanks.

UPDATE: I'm building 64bit. Building 32bit works fine, but I get symbol not declared in this scope errors for UpdateSystemActivity (and others) when I build for 64bit.

UPDATE2: I'm importing the following:

#import <Cocoa/Cocoa.h>
#import <Carbon/Carbon.h>
#import <OpenGL/CGLMacro.h>

Is there some other thing I need to import when building 64bit?

UPDATE3: Adding #import <CoreServices/CoreServices.h> did not help. I still get compiler errors telling me UpdateSystemActivity and UsrActivity was not declared in this scope.

UPDATE4: Okay, file not found on OSServices/Power.h. I'm building against the 10.5 SDK and a quick search shows:

$ pwd
/Developer/SDKs
$ find . -name Power.h
./MacOSX10.3.9.sdk/Developer/Headers/CFMCarbon/OSServices/Power.h
./MacOSX10.3.9.sdk/Developer/Headers/CFMCarbon/Power.h
./MacOSX10.3.9.sdk/Developer/Headers/FlatCarbon/Power.h
./MacOSX10.3.9.sdk/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/Headers/Power.h

./MacOSX10.4u.sdk/Developer/Headers/CFMCarbon/OSServices/Power.h
./MacOSX10.4u.sdk/Developer/Headers/CFMCarbon/Power.h
./MacOSX10.4u.sdk/Developer/Headers/FlatCarbon/Power.h
./MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/Headers/Power.h

./MacOSX10.5.sdk/Developer/Headers/FlatCarbon/Power.h
./MacOSX10.5.sdk/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/Headers/Power.h

Yet I get:

Mac.mm:6:29: error: OSServices/Power.h: No such file or directory
Mac.mm:6:29: error: OSServices/Power.h: No such file or directory

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行至春深 2024-08-09 17:04:17

在 OS X 10.6 及更高版本中，IOKit 可用于禁用睡眠。当您想要禁用睡眠时创建 IOPMAssertion 并在想要再次允许睡眠时销毁它。

#import <IOKit/pwr_mgt/IOPMLib.h>

// kIOPMAssertionTypeNoDisplaySleep prevents display sleep,
// kIOPMAssertionTypeNoIdleSleep prevents idle sleep
// reasonForActivity is a descriptive string why sleep is disabled

CFStringRef* reasonForActivity= CFSTR("Describe Activity Type");

IOPMAssertionID assertionID;
IOReturn success = IOPMAssertionCreateWithName(kIOPMAssertionTypeNoDisplaySleep, kIOPMAssertionLevelOn, reasonForActivity, &assertionID);

if (success == kIOReturnSuccess)
{ 
    //Add the work you need to do without the system sleeping here.

    success = IOPMAssertionRelease(assertionID);
    //The system will be able to sleep again.
}

In OS X 10.6 and later IOKit can be used to disable sleep. Create an IOPMAssertion when you want to disable sleep and destroy it when you want to allow sleep again.

#import <IOKit/pwr_mgt/IOPMLib.h>

// kIOPMAssertionTypeNoDisplaySleep prevents display sleep,
// kIOPMAssertionTypeNoIdleSleep prevents idle sleep
// reasonForActivity is a descriptive string why sleep is disabled

CFStringRef* reasonForActivity= CFSTR("Describe Activity Type");

IOPMAssertionID assertionID;
IOReturn success = IOPMAssertionCreateWithName(kIOPMAssertionTypeNoDisplaySleep, kIOPMAssertionLevelOn, reasonForActivity, &assertionID);

if (success == kIOReturnSuccess)
{ 
    //Add the work you need to do without the system sleeping here.

    success = IOPMAssertionRelease(assertionID);
    //The system will be able to sleep again.
}

More information: https://developer.apple.com/library/mac/qa/qa1340/_index.html

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唠甜嗑 2024-08-09 17:04:17

这里的问题似乎是 OSServices.h 中的行，如果定义了 __LP64__ ，则排除 Power.h。在 10.5 上构建 64 位时，UpdateSystemActivity 确实是未定义的。

好消息是该符号确实存在于 CoreServices.framework 中。有两种方法可以访问它。

向前声明： extern "C" OSErr UpdateSystemActivity(UInt8);
显式包含您尝试过的 Power.h。您尝试的问题是 OSServices/ 找不到进入搜索路径的方式。您可以像这样包含它： #import

我手头没有 SnowLeopard 的副本，但接下来要做的就是检查它是否已修复。如果不是，请提交 RADAR，因为这显然是 SDK 错误。

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北凤男飞 2024-08-09 17:04:17

您应该仍然能够从 Cocoa 应用程序中调用 UpdateSystemActivity ——它尚未被标记为已弃用。

API 的文档指定导入 CoreServices/CoreServices.h 来获取 API，但是通过标头（特别是在 OSServices/OSServices.h 中）搜索显示该文件在 64 位环境中被省略。尽管如此，Power.h 的某些部分（其中定义了 UpdateSystemActivity）对于 64 位是关闭的，而 UpdateSystemActivity 不是其中之一。

鉴于此，请尝试直接#import 并查看是否有效。（您必须在项目中包含 CoreServices 框架才能找到标头。）