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Request["key"] vs Request.Params["key"] vs Request.QueryString["key"]
Which method do you seasoned programmers use? and why?
Started by Chris on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
I tend not to use " Request.Params["key"] " because it could depends on what you are doing at the ....
I prefer to use " Request.QueryString["key"] " because it helps the code-reader know exactly where you are getting the data from.
Doing.
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For example I want to do some thing when some combination of Ctrl key with any other key is pressed (or it may be Alt key).Then from the standard input how to read that key combination in C program as an input.
I tried with simple getchar() to know the...
Started by Manoj Doubts on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
C doesn't have any notion of keyboards, despite keyboards and what gets passed through to standard input....
The long answer: C's Input/Output concept simply reads from the standard input stream.
The short answer: In a platform specific way.
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Is there a way the C++ STL Maps support this, since lower_bound and upper_bound on maps strictly return the value greater than the passed value.
Lower key
Use case I have a map with times as keys in a sorted manner so in a MAP
time t1 = value1 time t2...
Answer Snippets (Read the full thread at stackoverflow):
Nice idea from the comments is to return .end if there is no element greatest_less(Map const& m, typename Map::key_type const& k) { typename Map::const_iterator; typename Map::iterator greatest_less(Map & ....
Then there is no smaller key.
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Is there a way to iterate over the keys, not the pairs of a C++ map?
Started by Bogdan Piloca on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
For(std::map<key,Val>::iterator iter = myMap.begin(); iter != myMap.end(); ++iter) { ....
IF you need only keys, you can ignore the value part from the pair.
Hence, iterator is a pair of key,val.
Map is associative container.
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I have enum like this
[Flags] public enum Key { None = 0, A = 1, B = 2, C = 4 }
I have the following
Key k1 = Key.A | Key.B | Key.C;
I want to get the key in k1 that has the lowest value. How can I do that?
Example:
Key k1 = Key.A | Key.B | Key.C; // ...
Started by Gjorgji on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
And keep track of the lowest one Convert the lowest one back to the enum type Keys key = Keys.b | Keys.c; var lowest = Enum.GetValues(typeof(Keys)) .OfType<Keys>() .Where(x => (x & key) != 0:
Key key....
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How can I enable Emacs key bindings in Microsoft Visual C# 2008 Express Edition?
Started by Gambit on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
It seems that the Emacs keybinding file ( Emacs.vsk ) it's not included on Visual Studio Express Editions, however you might be able to find it and use it :-)
You can try using XKeymacs , which can enable Emacs-like keybindings in all Windows applications... .
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Regarding the C++ STL map, erasing by key:-
size_type map::erase ( const key_type& x );
Is it legal to erase a non-existing key? i.e. is the snippet below ok?
map<char,int> mymap; mymap['c']=30; mymap.erase('c'); mymap.erase('c'); mymap.erase('D...
Started by fuad on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
See http://....
This is perfectly fine, mymap.erase('D') will return 0 in this case .
Thus it returns 0 for nothing erased and 1 for something erased for a map .
Yes, in fact, map::erase returns a size_type which indicates the number of keys erased.
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I'd like to be able to detect when a USB key is inserted. Furthermore, if I can distinguish between USB key A and USB key B then I am in even better shape. Lastly, if I can uniquely identify the key using some sort of hardware serial number, MAC address...
Started by Erik on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
I don't see how to subscribe to the plugged-in event .
You need to retrieve the key's Hardware ID .
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How do I trap Windows key, Alt + Tab , and Ctrl + Alt + Delete in a Windows application using C#?
Started by Suriyan Suresh on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
As Jan stated, you can't capture CTRL-ALT-DEL.
Questions/1292165/how-to-lock-the-keyboard-and-mouse-for-a-windows-application-c
You can capture Ctrl-Alt this up in C or C++ as it needs to be a native DLL.
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How to rename key in registry using C++?
I want rename key "Myapp\Version1" to "Myapp\Version2".
I don't see any function in MSDN about renaming keys in registry.
Started by Jasmin25 on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
There is no function to rename on older versions of windows, you need to copy/delete on your own AFAIK. .
If your app requires Vista or newer versions of Windows, you can use RegCopyTree () followed by RegDeleteTree () .
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