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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
..._1。以下是实现2秒的延时代码：
COleDateTime start_time = COleDateTime::GetCurrentTime();
COleDateTimeSpan end_time= COleDateTime::GetCurrentTime()-start_time;
while(end_time.GetTotalSeconds()< 2) //实现延时2秒
{
...
Why doesn't Java offer operator overloading?
... models some kind of point, currency or complex number. But after that you start running out of examples fast.
Another factor was the abuse of the feature in C++ by developers overloading operators like '&&', '||', the cast operators and of course 'new'. The complexity resulting from combin...
How and/or why is merging in Git better than in SVN?
... do a much more twisted one albeit a more common one. Remember that origin started out with three revisions? Well, the guy who did them, lets call him Bob, has been working on his own and made a commit on his own repository:
a… b… c… f…
bob o<---o<---o<---o
...
SQL JOIN and different types of JOINs
...nition (even if you're correct). But I'd rather go the other way round and start with cross join and then "build" inner join on top of it. After all, the mere concept of cross join invalidates these informal and inaccurate Venn diagram visualisations...
– Lukas Eder
...
Is there a use-case for singletons with database access in PHP?
...
Okay, I wondered over that one for a while when I first started my career. Implemented it different ways and came up with two reasons to choose not to use static classes, but they are pretty big ones.
One is that you will find that very often something that you are absolutely su...
Daylight saving time and time zone best practices [closed]
...es according to a Lunar calendar on Saturn, The Klingon calendar.
Storing start/end timestamps in UTC works well. For 1, you need an event timezone name + offset stored along with the event. For 2, you need a local time identifier stored with each region and a local timezone name + offset stored ...
SQL Server query to find all permissions/access for all users in a database
... fit my needs completely, but hopefully something that will give me a good start. Either sql 2008, 2005 or 2000 will do, I can probably convert as needed.
...
Separate Back Stack for each tab in Android using Fragments
... screen 3
tab 2
screen 4
tab 3
screen 5 -> 6
etc...
So say: user starts in tab 1, navigates from screen 1 to screen 2 then to screen 3, he then switches to tab 3 and navigates from screen 4 to 6; if the switched back to tab 1, he should see screen 3 again and if he pressed Back he should r...
Why do we need private subnet in VPC?
...port to increase your allowed number of addresses, they will at some point start asking questions. VPC was designed to work this way. Can you buck the system and use all public IPs? Yes. Is it a good idea? No.
– Michael - sqlbot
Apr 19 '17 at 2:09
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What is state-of-the-art for text rendering in OpenGL as of version 4.1? [closed]
...the intertubes...)
The 2011 NVpr API presentation talk for the fonts part starts here and continues in the next part; it is a bit unfortunate how that presentation is split.
More general materials on NVpr:
Nvidia NVpr hub, but some material on the landing page is not the most up-to-date
Siggraph...