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FlashLight 拓展：打开/关闭手机手电筒/闪光灯 · App Inventor 2 中文网
...展
打开/关闭手机手电筒/闪光灯。
.aix 拓展下载：
cn.fun123.FlashLight.aix
属性
无
事件
无
方法
IsOn()
获取手电筒当前状态
Off()
关闭手电筒
On()
打开...
Screenshot 拓展：截取手机屏幕 · App Inventor 2 中文网
...
Screenshot 拓展
截取手机屏幕。
.aix 拓展下载：
cn.fun123.Screenshot.aix
属性
FileName
设置截屏图片的名称。
事件
AfterScreenshot(image)
截屏完成后触发此事件，参数给出图...
UrsPahoMqttClient心跳问题解决——Paho底层已自动处理，设好KeepAlive就行...
...后建议等 3 秒再重连。
Q: 底层怎么发的？想反编译看源码
aix 文件解压后有 classes.dex，用 jadx 反编译就能看。不过既然 Paho 已经封装好了，设对 keepAliveSeconds 就行，不用自己实现。底层就是定时往 TCP 发两个字节：0xC0 0x00（P...
Is modern C++ becoming more prevalent? [closed]
...se cases: I want a windows client to do CRUD on my db. Use C#/.NET or C++/MFC? I want a web app... Use C#/ASP.NET or C++/ISAPI? I want a simple "Nybbles" clone using DirectX C#/.NET or C++/MFC/WTL? I want a winning demo at Assembly09... definitely C++ (vs. C#).
– spoulson
...
When is it right for a constructor to throw an exception?
...r environments where exceptions don't work properly or aren't implemented. MFC uses two-stage construction because when it was originally written, Visual C++ didn't have C++ exceptions working. Windows CE didn't get C++ exceptions until v4.0, and MFC 8.0.
– Mike Dimmick
...
What is Linux’s native GUI API?
...ou cross-compile code written to the Metrowerks PowerPlant framework using MFC under the hood. (Before anyone sneers, once you get below the macros, MFC is quite reasonable.) I've also had multiple porting jobs where either the Win32 or the Mac Toolbox API was the spec against which we compiled, rei...
How do I make a fully statically linked .exe with Visual Studio Express 2005?
...ndow):
Under Configuration Properties --> General, change the "Use of MFC" field to "Use MFC in a Static Library".
Under Configuration Properties --> C/C++ --> Code Generation, change the "Runtime Library" field to "Multi-Threaded (/MT)"
Not sure why both were needed. I used this to re...
How to get the number of characters in a std::string?
...== 0)
There are other string types in non-standard C++ libraries, such as MFC's CString, ATL's CComBSTR, ACE's ACE_CString, and so on, with methods such as .GetLength(), and so on. I can't remember the specifics of them all right off the top of my head.
The STLSoft libraries have abstracted this a...
App Inventor 2 源码商店
... APP INVENTOR · 精选源码商店 从一份源码，开始你的创作。 精选 .aia 项目源码，下载后即可导入 App Inventor。 浏览源码 ↓ .aia 灵感，马...
libcurl 32位动态dll库、静态lib库下载 - 源码下载 - 清泛网 - 专注C/C++及内核技术
...bcurl库，包括动态库dll版本，和静态库lib版本。libcurl官方源码下载地址：https: curl haxx se download html采用cmake生成sln解决方案，vs编译。源码编译好的libcurl库，包括动态库dll版本，和静态库lib版本。
静态库将代码打包进最终的...