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AfxGetApp->GetMainWnd() 与 AfxGetMainWnd() - C/C++ - 清泛网 - 专注C/C++及内核技术
...adState();
CWinThread* pThread = pState->m_pCurrentWinThread;
// if no CWinThread for the module, then use the global app
if (pThread == NULL)
pThread = AfxGetApp();
return pThread;
}
可以看出当取得的线程句柄为空时,则返回主线程句柄，所以在主...
count(*) vs count(column-name) - which is more correct? [duplicate]
Does it make a difference if you do count(*) vs count(column-name) as in these two examples?
5 Answers
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Difference between this and self in self-type annotations?
...aking a certain type and returning the code block e.g. foo: B => {...}. Now those curlies are of course omitted. It is interesting to see that you can use the object name instead of "this" inside any scope in the code though [something we do all the time in javascript]
– Ust...
What is the difference between `after_create` and `after_save` and when to use which?
... after after destroying the record? Or in the ops case, send an email to a now deleted user? Be careful with using after_commit
– rmcsharry
Jul 1 '19 at 15:33
...
Swift - How to convert String to Double
...matted numbers ($1,000.00) or formatted numbers (1,000). You don't always know how the user will enter numbers, so being able to support both is ideal with a group of if/let statements.
– Paul Solt
Oct 30 '18 at 12:37
...
What's the difference between TRUNCATE and DELETE in SQL
...ledBack in SQL SERVER. And in the 2nd row DELETE dose not reset identity. Now how can you edit this post? That's the bad thing about using pictures in StackOverflow.
– Mahmood Jenami
Aug 3 '16 at 8:05
...
Merge 2 arrays of objects
...
If you want to merge 2 arrays of objects in JavaScript. You can use this one line trick
Array.prototype.push.apply(arr1,arr2);
For Example
var arr1 = [{name: "lang", value: "English"},{name: "age", value: "18"}];
var arr...
How do I create an immutable Class?
...hould be supplied in the constructor
all properties should be getters only
if a collection (or Array) is passed into the constructor, it should be copied to keep the caller from modifying it later
if you're going to return your collection, either return a copy or a read-only version (for example, us...
Decoding and verifying JWT token using System.IdentityModel.Tokens.Jwt
...r which derives from System.IdentityModel.Tokens.SecurityTokenHandler. In WIF this is the core class for deserialising and serialising security tokens.
The class has a ReadToken(String) method that will take your base64 encoded JWT string and returns a SecurityToken which represents the JWT.
The S...
Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术
...
{
assert(pOutput != NULL);
assert(outSize >= 6);
if ( unic <= 0x0000007F )
{
// * U-00000000 - U-0000007F: 0xxxxxxx
*pOutput = (unic & 0x7F);
return 1;
}
else if ( unic >= 0x00000080 && unic <= 0x000007FF )
{...