StackOverflow2013

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plurals

PO
primarykey
Id
7988401
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-11-02T23:03:24.803
FavoriteCount
0
LastActivityDate
2011-11-02T23:25:53.880
LastEditDate
2011-11-02T23:25:53.880
LastEditorUserId
998299
OwnerUserId
998299
ParentId
7988161
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
<code>41</code> and <code>0x41</code> are two completely different values. The second one, <code>0x41</code> is hex for the decimal value 65, which is the ASCII code for 'A'. But I'm guessing you already know this since you initialise <code>i</code> to 65 (capital ASCII letters and VK codes match up). Anyway your code almost works ok to an extent, assuming that you're trying to log key presses. Long story short is your loop delay is way too long, for it to iterate through every character it takes <code>200ms * 26 = 5.2 seconds</code>. Therefore if you type "AAAB" within 5.2 seconds only "AB" will be registered. But if the delay is too short then you might register a press more than once. Read the <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ms646293%28v=vs.85%29.aspx" rel="nofollow">documentation for GetAsyncKeyState</a> for more info. Anyway I'd probably choose a different function as mentioned in the remarks of the documentation above, something like <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ms646299%28v=vs.85%29.aspx" rel="nofollow">GetKeyboardState</a>, as you'd usually use something like <code>GetAsyncKeyState</code> for registering key presses of hotkeys or something similar. ie. <code>GetAsyncKeyState</code> is good for wanting to know if a key was pressed, rather than how many times, the order of the presses, etc. A loop the way you have it just seems really prone to problems. Also, don't do anything stupid logging keys... EDIT: Actually <code>GetKeyboardState</code> still isn't that good of a solution. Setting a keyboard hook with <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ms644990%28v=vs.85%29.aspx" rel="nofollow">SetWindowsHookEx</a> would be a much better alternative. You could use the <code>WH_KEYBOARD_LL</code> hook type to set a low level keyboard hook with a <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ms644985%28v=vs.85%29.aspx" rel="nofollow">LowLevelKeyboardProc</a> callback. I did some Googling and there's an open-source macro program, <a href="http://www.autohotkey.com/" rel="nofollow">AutoHotkey</a> that uses this method, which I guess you could take a look at if you wanted.
Tags
Title
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PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POKey listener / logger using GetAsyncKeyState()
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USAusCBloke
UserOwnerUserId
1. USAusCBloke
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PostLinksPostIdRelatedPostId
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PostLinksRelatedPostIdPostId
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PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

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