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I want to open a password protected database in vc 6 program but it do not works following is the code (if db has no password then every thing works fine)
m_pConnDB->Open (_bstr_t ("Provider=Microsoft.Jet.OLEDB.4.0; \
Data Source = Database1.accdb"), \
_bstr_t (""), \
_bstr_t (""), \
adModeUnknown);
I have also tried "Jet OLEDB:Database Password = mypassword" but it dont work
I have also tried same code on MDB file instead of accdb files but still same error.
Thanks in advance ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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Hi,
I have designed a 3 dialog based application. All pages are doing something, every page is having Close button (CDialog::ONOK()).
But at the last page When I closes the application (CDialog::ONOK()), application does not close, it appears to close but still running in hidden mode...I tracked this using Task Manager.
What can be the cause of behaving like this?
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could be a thread you created and started, which hasn't finished yet, and wasn't declared a background thread.
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There are software products, in visual c++, where the
software can fill out information on a webpage and click
submit. How does this work? Is there a sample project
anywhere that shows how to do this?
Sincerely,
Danielle Brina (an overworked graduate student)
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1 IWebBrowser2 is a good starting point.
2. You need to have a complete DOM of webpage to fill out the information of the page/
3. Somehow figure out how to stimulate the click on the submit button.
In Addition,You may need a browser plug a (ActiveX DLL) in form of BHO.
modified on Monday, December 28, 2009 5:02 PM
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This used to be pretty simple (using IWebBrowser2::Navigate) until IE "safe mode" came out. This internet explorer option appears on Vista (and I'm assuming later OS but I have not confirmed that) and seems to be enabled by default. If safe mode is enabled, you will effectively get cut off from the browser instance and your attempt to "post" data gets lost in a singularity or evaporate.
I spent some time looking for a workaround but it seems hopeless. Yet another lashing from the security folks.
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This is basically done using a browser extension.
The web browser loads your extension and passes in a reference to the browser control and also fires events when a web page finishes loading so that you can get access to the web page and manipulate its contents.
You will need different extensions for different browsers like IE, firefox etc. since their architectures are different.
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Well are you asking for automating clicks and submitions, means doing repeating things. then you can simply go for keyboard and mouse event, just search google with msdn in front then there's is a different interesting way too. simply discover how the submitions are being submitted, get tamper data plugin for firefox, check out what parameters are being submitted in HTTP request, and emulate same, many submitions are based around method get, so you simply need to submit parameters in url or otherwise if the submitions are based on method post, then you need to write and send the HTTP request body too. for any way you choose you can go for WININET library to do http work..... that way you'll know more what u r doing amd have much control ovet it.
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Please, rephrase your question so that it is understandable (and please, no link to external resources). If you have to put code, put the snippet which is needed, no your full code (and use the pre tags to format the code properly).
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Firstly, your link is broken, it merely comes back to this page. Secondly your question means nothing, loading a bitmap and drawing to a window are separate and distinct. Please try and clarify your problem.
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a04.lqd wrote: please help !!
Are you talking about something like this?
"One man's wage rise is another man's price increase." - Harold Wilson
"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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hai friends
I have a structure with lot of members. I use ZeroMemory to Initialize structure.
ZeroMemory( &Mystruct, sizeof( MyStruct ));
I like to check structure for empty without checking each member. Is any ?
thanks in adance
-kk.tvm-
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You can try memcmp() function.
A a;<br />
ZeroMemory(&a, sizeof(A));<br />
<br />
char chNull[sizeof(A)] = {0};<br />
<br />
int n = memcmp(&a, chNull, sizeof(A));
modified on Monday, December 28, 2009 7:16 AM
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kk.tvm wrote: I like to check structure for empty without checking each member. Is any ?
I do not know of any built in function for this. I would suggest the best way is to cast the structure to a byte pointer and then search that for a non-zero byte.
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AFAIK that is incorrect, a inhomogeneous structure may contain padding bytes, and the run-time does not have to clear those padding bytes (it probably would, but it does not have to). So you can't just zero-test all bytes, as that could yield false negatives.
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Nope. It is actually correct, as far the 'Empty' struct is defined as the OP did, i.e. the one obtained with
ZeroMemory( &Mystruct, sizeof( MyStruct ));
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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Well,
I've never known it to go wrong, BUT:
Padding bytes are technically 'Undefined', meaning that the underlying architecture can do with them what it wants.
e.g. We have a structure with a single char, followed by three packing bytes. The compiler is at liberty in the interest of optimisation to store the contents of the entire EAX reg to the single char, without clearing the three upper bytes first, thereby loading garbage into the three padding bytes.
I repeat the architecture is at liberty to do so, although in my experience MS compilers sofar apparently never play that dirty. It could become a portability issue though, both to future MS Compilers, or, if the code needs porting to another platform (Linux, Win64?).
Bram van Kampen
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Bram van Kampen wrote: Padding bytes are technically 'Undefined', meaning that the underlying architecture can do with them what it wants.
They're actually well defined if you initialize them like the OP did.
Given the padding issue you may choose one of the following conventions:
- Consider padding bytes as 'members' of your struct.
- Ignore padding bytes
If you follow consistently the convention choosen, then you won't have troubles (the OP implicitely chose convention 1).
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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ZeroMemory() will clear the entire structure including padding bytes so no problem.
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yes but I understood the OP wanted to check whether a struct was at its all zero state, where checking all bytes if fine if and only if the hidden bytes got cleared at least once (e.g. with ZeroMemory).
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Not sure if I understand you Luc, but if you use ZeroMemory() it will clear all bytes between start and end of the structure. If, at a later point in time, you do a search through those same bytes for a non-zero value it will tell you if any element of the structure is non-zero. If any padding byte is non-zero then you have an insidious bug in your code.
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That is what I said, checking all for zero is fine provided you ever cleared all (as with ZeroMemory), and not otherwise.
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