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ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...eryInterface接口，来获得对应的正确的接口指针。
(1) 构造函数
第一个参数为智能接口指针的类型，第二个参数为 智能指针的接口ID。
CComPtr<IUnknown> punk;
下面三个例子完全相同
CComPtr<IXXX> pno;
CComPtr<IXXX,&__uuidof(IXXX)> pno;
CComPtr<I...
如何屏蔽APP输出的报警信息 - App应用开发 - 清泛IT社区，为创新赋能！
...警信息改为中文自定义的信息
在这个统一的异常处理函数中处理报错信息，或者自定义提示信息：
组件：一般是拓展名称
函数名称：如SendData
错误编号：上图的 -2，你可以判断，个性化提醒
消息：具体的报错信息
App Inve...
LinkedBlockingQueue vs ConcurrentLinkedQueue
...n, and inefficiencies when it's empty (due to waking up unnecessarily from sleeps).
From the docs for BlockingQueue:
BlockingQueue implementations are designed to be used primarily for producer-consumer queues
I know it doesn't strictly say that only blocking queues should be used for produce...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...ent fault 之所以能够流行于世，是与Glibc库中基本上所有的函数都默认形参指针为非空有着密切关系的。目录1。什么是段错误？2。为什 Segment fault 之所以能够流行于世，与Glibc库中基本上所有的函数都默认形参指针为非空有着密...
How do I use Java to read from a file that is actively being written to?
...eader.read() );
}
else {
try {
sleep( 500 );
}
catch( InterruptedException ex ) {
running = false;
}
}
}
}
Of course the same thing would work as a timer instead of a thread, but I leave tha...
ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...Windows会为你发送NM_CUSTOMDRAW消息，你只需要添加一个处理函数以便开始使用Custom draw。首先添加一个消息映射，象下面一样：
ON_NOTIFY ( NM_CUSTOMDRAW, IDC_MY_LIST, OnCustomdrawMyList )
处理函数的原形如下：
afx_msg void OnCustomdrawMyList ( NMH...
AsyncTask Android example
...t i = 0; i < 5; i++) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// We were cancelled; stop sleeping!
}
}
return "Executed";
}
@Override
prot...
Using module 'subprocess' with timeout
... print self.process.returncode
command = Command("echo 'Process started'; sleep 2; echo 'Process finished'")
command.run(timeout=3)
command.run(timeout=1)
The output of this snippet in my machine is:
Thread started
Process started
Process finished
Thread finished
0
Thread started
Process started...
Cleanest way to write retry logic?
... if (attempted > 0)
{
Thread.Sleep(retryInterval);
}
return action();
}
catch (Exception ex)
{
exceptions.Add(ex);
}
}
throw new AggregateExce...
xtreme toolkit pro——CXTPReportControl控件教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...dReportCtrl;
（3）将控件和变量联系起来，在对话框初始化函数OnInitDialog()中添加如下代码：
m_wndReportCtrlList.SubclassDlgItem(IDC_REPORTCTRL_LIST,this);
4. 设置控件的外观：
//初始化报表的外观
m_wndReportCtrl.AllowEdit(FALSE);
//m_wndReportCtrl.E...