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线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...（利用界面线程可以在一个进程的地址空间开启几个并行运行的窗口）。在工作线程里调用AfxGetMainWnd（）->m_hWnd出错，也会发生发生内存访问冲突。（AfxGetMainWnd得到的是当前线程的主窗口）。
2.ASSERT((p = pMap->LookupPermanent(m_hWnd)) ...
Remove the legend on a matplotlib figure
... I had some time ago here
(Thanks for that answer Jouni - I'm sorry I was unable to mark the question as answered... perhaps someone who has the authority can do so for me?)
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Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术
...着把两条指令的顺序交换一下，会发现程序依然能够正常运行。
下面我们尝试结合Redis写个更实战一点的例子。
首先，我们需要创建一个Redis配置文件config.json，内容如下：
{
"host": "<HOST>",
"port": "<PORT>"
}
然后，我们...
Pandas count(distinct) equivalent
...a db substitute as I have multiple databases (oracle, mssql, etc) and I am unable to make a sequence of commands to a SQL equivalent.
...
Check, using jQuery, if an element is 'display:none' or block on click
...s also. I have css display: block; written inline coming from jquery. i am unable to check it with your method. help me.
– Gaurav Manral
Aug 22 '14 at 6:23
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std::wstring VS std::string
... << std::endl ; <- error
std::cout << "wtext : UNABLE TO CONVERT NATIVELY." << std::endl ;
std::wcout << L"wtext : " << wtext << std::endl;
std::cout << "sizeof(wtext) : " << sizeof(wtext) << std::endl ;
std:...
PHP substring extraction. Get the string before the first '/' or the whole string
...able to do this -> $arr = explode('/',$mystring,2); echo $arr[0];. I am unable to get the first string in one statement itself - echo explode('/',$mystring,2)[0];. Since explode returns an array, I should be able to do it right? But I get an error. Any suggestions?
– anon355...
How to hide status bar in Android
...roid:theme="@android:style/Theme.NoTitleBar.Fullscreen" in manifest i was unable to scroll to see remaining views but if give attribute android:theme="@android:style/Theme.NoTitleBar" like this in manifest I can be able to scroll to see remaining view but there is status bar in that screen, here ...
Gem::LoadError for mysql2 gem, but it's already in Gemfile
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It doesn't load mysql2 gem because new version of mysql2(0.4.1) gem unable to load the mysql2_adaptor. This is working for me.
gem 'mysql2', '~> 0.3.13'
and run
bundle install
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Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
... (int?)null;
Basically what is happening is that conditional operator is unable to determine the "return type" of the expression. Since the compiler implictitly decides that 10 is an int it then decides that the return type of this expression shall be an int as well. Since an int cannot be null...