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Finally i got the answer...
I have to include this in my .cpp file .
#import "..\..\..\..\ThirdParty\Microsoft\Redistribute\MSADO15.dll" no_namespace \
rename("Parameters","ADOParams") \
rename("Connection","ADOCon") \
rename("Parameter","ADOParam") \
rename("EOF", "adoEOF") \
no_implementation
This will help to avoid the error C3221 : cannot chanage guid of class 'Parameters'. .
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I'm trying to copy a STL to a memory mapped file, but I can't figure out how to get the actual size of the map to know how many bytes to copy. map::size only returns the number of items in the map, and the sizeof operator returns an impossibly small number.
I'm not sure it'll help, but my map is defined thusly:
struct struct_XFer {
char name[MAX_PATH];
double size;
double transferred;
COleDateTime created;
COleDateTime modified;
};
map <int, struct_XFer> theMap;
typedef pair <int, struct_XFer> XFer_Pair;
 I've been struggling with this for several days... any help would be greatly appreciated!
-MZR
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You actually need to write some code to serialize it ( see, for instance [^]) or use boost serialization [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Ordinary std::map implementations don't work in a way that lets you do that - see this thread[^] for the reasons why and suggestions of what you can do to get around that.
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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yeap you have lot of work to do if you use memcpy on map ,
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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 please
it is required to write a ( c or c++) program in order to which takes atime expression as astringand perform all the necessary parsing on the expression and generate the fourier series expansion of the expression. the program should be able to receive the period of the wave under study even if it was a piecewise continuous expression
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Well, you better be starting that! 
I remember the good'ol days at the university spending the night doing my homework!! and there was not "real" internet
at that time.
This signature was proudly tested on animals.
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ok 
but also there is no source code..................
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Well, that's the part of the job that you should be doing yourself.
This signature was proudly tested on animals.
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Do you want fries with that?
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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I'd like coffee for two, and toast with marmalade
No...marmalade.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Man, you switched job?
It is a crappy thing, but it's life -^ Carlo Pallini
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jeron1 wrote: See here[^].
Wow - thanks man!! Now I can finish my project and head off to laze in the sun instead of coming to work every day...
I'll send this to the rest of the team and we can deliver early!!
There are three kinds of people in the world - those who can count and those who can't...
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Save a couple of beers for me! That site sure is a great time saver.
 ![Beer | [beer]](https://www.codeproject.com/script/Forums/Images/beer.gif)
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If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I'm not exactly sure what its doing, but it seems to give me more pertinent answers than Wolfram Alpha, so I like it 
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hi
as we know, in a dialog box Tab and Shift+Tab change focus between ctrls, Tab to the next one and Shift+Tab to the previous one. when handling the keyboard event generated, we see that both generates the same event with the same wParam (0x09) and lParam (0x000d0001).
so how a dialog figures out which one is hit? apparently by using the function GetKeyState at the moment of handling the message. alright?
now, in a system with no tab key i want to use Up and Down keys in the place of them. at this moment the problem gets produced.
in the PreTranslateMessage of my application, i just change wParam from VK_DOWN into VK_TAB. the PreTranslateMessage of the base class (CWinApp) thinks Tab is hit instead of Down arrow. this is the behavior i intend and it's ok. but what can i do when the user hits Up arrow and expect the previous ctrl gets focused?
do i need to use SetKeyboardState and this is the only way to simulate hitting Shift key?
what can i do?
thx
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Maybe this[^] article will help, with a couple of possible alternatives.
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The other way to do it would be to replicate Windows tab-handling for VK_UP and VK_DOWN in the PreTranslateMessage method...
BOOL CtestmfcDlg::PreTranslateMessage(MSG* pMsg)
{
if (pMsg->message == WM_KEYDOWN)
{
if (pMsg->wParam == VK_UP)
{
CWnd* prev = GetFocus()->GetNextWindow(GW_HWNDPREV);
if (!prev) prev = GetFocus()->GetNextWindow(GW_HWNDLAST);
if (prev) prev->SetFocus();
return TRUE;
}
else if (pMsg->wParam == VK_DOWN)
{
CWnd* next = GetFocus()->GetNextWindow(GW_HWNDNEXT);
if (!next) next = GetFocus()->GetNextWindow(GW_HWNDFIRST);
if (next) next->SetFocus();
return TRUE;
}
}
return CDialog::PreTranslateMessage(pMsg);
}
(tested with VS2010 Beta 1 - woo-hoo!)
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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this is a good method. indeed doing what the dialog itself does in handling these keys again in our code for another keys. but when there're many dialogs in the program and i'm not going to derive them from a common base and put this code in its PreTranslateMessage method makes it a bit not a straightforward method. the code i've to write is what the others also r working on. all keyboard handlings must occur in the application's PreTranslateMessage. i know that it's not a logical limitation, but this is what i can do.
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please notice the following code i put in the application's PreTranslateMessage:
...<br />
case VK_DOWN:<br />
pMsg->wParam=VK_TAB;<br />
BYTE byKeybState[256];<br />
GetKeyboardState(byKeybState); <br />
byKeybState[VK_SHIFT] = !(BOOL)GetKeyState(VK_SHIFT);
SetKeyboardState(byKeybState);<br />
break;<br />
...<br />
it must work. right?
but in CE it seems that GetKeyboardState and SetKeyboardState functions r not available. what can i do?
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