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MFC子窗口和父窗口（SetParent,SetOwner） - C/C++ - 清泛网 - 专注C/C++及内核技术
...、几个相关函数的说明
（1）获取/设置所有者窗口
win32 API提供了函数GetWindow函数（GW_OWNER 标志）来获取一个窗口的所有者窗口句柄。
GetWindow(hWnd, GW_OWNER)永远返回窗口的所有者(owner)。对于子窗口，函数返回 NULL，因为它们的父...
Escaping single quote in PHP when inserting into MySQL [duplicate]
...e it again, the string you get back from the database will not be automatically escaped for you. You'll get back "O'Brien". So, you will need to pass it through mysql_real_escape_string().
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Regular expression for letters, numbers and - _
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To actually cover your pattern, i.e, valid file names according to your rules, I think that you need a little more. Note this doesn't match legal file names from a system perspective. That would be system dependent and more libera...
When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingBlock: will be as fas...
Timeout on a function call
I'm calling a function in Python which I know may stall and force me to restart the script.
18 Answers
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What is the overhead of creating a new HttpClient per call in a WebAPI client?
...nt?
Is it better to have one instance of the HttpClient for multiple calls?
7 Answers
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Performance difference for control structures 'for' and 'foreach' in C#
...t will depend on whether you're doing any real work in the loop. In almost all cases, the difference to performance won't be significant, but the difference to readability favours the foreach loop.
I'd personally use LINQ to avoid the "if" too:
foreach (var item in list.Where(condition))
{
}
EDI...
URL encoding the space character: + or %20?
...he server in an HTTP request message using method GET or POST, or, historically, via email. The encoding used by default is based on a very early version of the general URI percent-encoding rules, with a number of modifications such as newline normalization and replacing spaces with "+" instead of "...
How to get Bitmap from an Uri?
...}
catch (Exception e)
{
e.printStackTrace();
}
finally {
if (bis != null)
{
try
{
bis.close();
}
catch (IOException e)
{
e.printStackTrace();
}
...
How to save an HTML5 Canvas as an image on a server?
I'm working on a generative art project where I would like to allow users to save the resulting images from an algorithm. The general idea is:
...