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How to check for an active Internet connection on iOS or macOS?
...y via closures
let reachability = Reachability()!
reachability.whenReachable = { reachability in
if reachability.connection == .wifi {
print("Reachable via WiFi")
} else {
print("Reachable via Cellular")
}
}
reachability.whenUnreachable = { _ in
print("Not reachabl...
How to iterate through a DataTable
I need to iterate through a DataTable . I have an column there named ImagePath .
4 Answers
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Easiest way to detect Internet connection on iOS?
...through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely sane behavior, and I was surprised to find NSURLConnection in iOS did not emulate it.
...
How to use android emulator for testing bluetooth application?
...er settings of the virtual machine, Goto serialports -> Port 1 check Enable serial port select a port number
then select port mode as disconnected click ok. now, start virtual
machine. Under Devices -> USB Devices -> you can find your laptop
bluetooth listed. You can simply check t...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...ul response and serve it to
subsequent clients even when clients may be able to make a successful
request.
I'll leave it to you to decide between 4xx and 5xx, but you should use an error status code.
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Android Studio/Intellij Idea: “Table of Contents” for a class
...I have seen. One thing that has been annoying me though is this lack of "Table of Contents" for a class. I apologize for not knowing exactly what to call it. But what I am referring to is the dropdown menu in eclipse that lists all the methods, interfaces, classes and so on that are in that class fi...
CListCtrl 扩展风格设置方法：SetExtendedStyle和ModifyStyleEx 区别 - C/C...
...风格的值并没有存入窗口的GWL_EXSTYLE属性值中，而是通过发送LVM_SETEXTENDLISTVIEWSTYLE消息给listctrl控件来实现，因此它就不能通过ModifyStyleEx做设定。
比较起ModifyStyle，该API即可设定普通窗口的风格，比如WS_CHILD,WS_VISIBLE。也可.设定...
MFC中MDI消息处理流程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...息的请求将沿着预先定义好的路径依次进行处理。消息的发送者并不知道该消息最后是由那个具体对象处理的，当然它也无须也不想知道，但是结构是该消息被某个对象处理了，或者一直到一个终极的对象进行处理了。MFC MDI 消...
MFC Static透明背景色的实现、Static控件自绘、Static字体修改 - C/C++ - ...
...tem。OnDrawItem是ON_WM_DRAWITEM消息的处理函数，是处理子控件发送过来的自绘消息的。MFC Static 自绘 CtlColor
微软新推一系列“视窗10”设备 - 资讯 - 清泛网 - 专注C/C++及内核技术
...国和其他一些国家上市，微软将在明年第一季度向开发者发送开发者版本全息眼镜。
据微软说，“视窗”10发布10周以来获得“有史以来最快速起步”，相同时期内用户升级速度是“视窗”7的三倍，现在已有1.1亿台设备运行这...