C / C++ / MFC

Ambit6-Feb-03 1:43

Ambit

6-Feb-03 1:43

Have you tried ZipArchive at

http://www.artpol-software.com/

?

There's a free library there that allows you to read and write ZIP files that's very easy to use, I don't know if that's any use to you.

Cheers,
KB

Mike Nordell6-Feb-03 4:11

Mike Nordell

6-Feb-03 4:11

Have a look at zziplib. If you want to, you can even replace plain fopen with zzip_fopen and read the file like it was a plan C stream.

As for jar file, it completely depends if you're talking about the .jar extension that Sun "stole", or the more widely spread and later hijacked JAR archiver (the successor to ARJ). If the former, it's nothing more than a renamed .zip-file. For the latter, check the ARJ/JAR site and see if there is a free unpack lib.

++luck;

includeh106-Feb-03 5:23

includeh10

6-Feb-03 5:23

hi, thx u 3!
i need to access sun's java jar file first, than more...
what does "stole" mean here? is there any special?

Rose | [Rose]

includeh10

Mike Nordell7-Feb-03 3:55

Mike Nordell

7-Feb-03 3:55

includeh10 wrote:
what does "stole" mean here?

The JAR archiver was on the field before Java even became hype (IIRC). A jar archive therefore had a well-defined meaning: an archive created by the JAR archiver.

Then Sun came along with Java. First they used the .zip extension (as one would expect, since Java class-collection archives are just zip-files).

Later Sun decided this wasn't any good. They wanted something that differentiated a Java .zip archive from any other .zip archive. What could be more obvious than taking a zip-file and changing the extension to .jar (Java ARchive)? Well, I can come to think of a gazillion better things to do - especially since they by this move overloaded even the meaning of "jar archive". This was a Bad Thing(tm).

Nowadays "a jar archive" can be either a JAR archiver archive (with .j extension) or a collection of Java classes in a zip-file (renamed to the .jar extension), and without explicit context or qualification there is no way to know which one people are talking about (hence my previous answer to your question).

So the meaning of "stole" in this context was to display that Sun hijacked an already existing TLA used in the same field (archives and archivers).

Default CD Player??.

Demian Panello6-Feb-03 0:11

Demian Panello

6-Feb-03 0:11

Hi everybody.

I'm writing a CD PLAYER, (with my own class), using the MCI COMMANDS
with the SendString function.
Everything goes well, but I have two problems. Unsure | :~

First: How can I detect when an AudioCD is insert?.
Right now, I have a member function in my class called IsCDInsert()
and with a WM_TIMER message in my dialog, (the method wake up every second),
I can do that, but I think that this is not the right way.
Maybe the question could it be: How can I make my cd player the default player?.

Second: I have, (for example), a slider control in my dialog, and I like to control
the CD Volume with it. How can I link that control with the sistem volume function?.

I have see the MCIWndGetVolume() function, but I dont have a MCI window, and the
function waveOutSetVolume() but I think that it's only for wave files.

Well, thank you very much.

Sorry about my english.

Demian.

Executing the container

-Dy5-Feb-03 23:21

-Dy

5-Feb-03 23:21

I'm creating an OLE container doc/view (MFC), which can embed Excel workbooks within it; I have a need for the VBA in Workbook_Open() to be executed when the document is opened, but am having a spot of difficulty with that.

Sometimes the VBA is executed, sometimes it isn't - really inconsistent. Has anyone managed to successfully do this, or could you point me in the right direction for making sure that the VBA is always executed?

Dylan

HtmlView, multiframe

jeremysay5-Feb-03 23:21

5-Feb-03 23:21

Hello all,
I'm working with HtmlView in VC7.
I have a problem to get all URL of multiframes web page.
I would like to get the URL of the page which have the focus.
You know how to do this?

thx in advance.

HENDRIK R6-Feb-03 0:55

HENDRIK R

6-Feb-03 0:55

Well, it's only a try! Unsure | :~

Getting all URLs of your web page isn't very complicated - for every frame the function OnBeforeNavigate2 gets called, providing the URL.

But determination on gaining focus should be a more advanced task.
When your document is loaded, you can get a pointer to all frames of your window by IHtmlWindow's get_frames function. Then you should implement a connection sink and connect to all IHtmlElementEvents2. Then you could react on it's onfocus event.
Connecting to the events could be done in the following way:

void CMyClass::ConnectEvents(IHTMLElement* pElem)
{
    HRESULT hr;
    IConnectionPointContainer* pCPC = NULL;
    IConnectionPoint* pCP = NULL;
    DWORD dwCookie;

    // Check that this is a connectable object.
    hr = pElem->QueryInterface(IID_IConnectionPointContainer, (void**)&pCPC);

    if (SUCCEEDED(hr))
    {
        // Find the connection point.
        hr = pCPC->FindConnectionPoint(DIID_HTMLElementEvents2, &pCP);

        if (SUCCEEDED(hr))
        {
            // Advise the connection point.
            // pUnk is the IUnknown interface pointer for your event sink
            hr = pCP->Advise(pUnk, &dwCookie);

            if (SUCCEEDED(hr))
            {
                // Successfully advised
            }

            pCP->Release();
        }

        pCPC->Release();
    }
}

pElem would be a frame element in your case.

Hope it helps ... and works;)

jeremysay6-Feb-03 2:04

6-Feb-03 2:04

THX!!! are you lucky luke? Wink | ;)

im'going to understand your code and try it.
i hope it's works Smile | :)

thx again !

jeremysay6-Feb-03 3:11

6-Feb-03 3:11

hmm..
sorry i'm don't understand very well Cry | :((

to get a pointer on frames i do :

IDispatch *pDisp = GetHtmlDocument();
IHTMLDocument2 *pDocument = NULL;
pDisp->QueryInterface( IID_IHTMLDocument2, ( void** )&pDocument );

IHTMLFramesCollection2* pFrames;
pDocument->get_frames(&pFrames);

I don't understand what contains pFrames ? Confused | :confused:

and to pass IHTMLElement* pElem at ConnectEvents i do :

IHTMLElement* pBody = NULL;
pDocument->get_body (&pBody );
ConnectEvents(pBody);

it's right ?
i'm sorry to ask you so many questions but you are my only help. Frown | :(

HENDRIK R6-Feb-03 3:28

HENDRIK R

6-Feb-03 3:28

jeremysay wrote:
to get a pointer on frames i do :

Yeah, that should work....

jeremysay wrote:
I don't understand what contains pFrame

pFrame contains a collection of all frames of your document. You can then extract the elements by using the item function that IHTMLFrameCollection2 supports. For details you should hava a look at MSDN.

jeremysay wrote:
and to pass IHTMLElement* pElem at ConnectEvents i do :

As you want to get informed about a frame gaining focus, I think IHTMLElement should be replaced by a pointer to a frame object. So once you have pointers to your frames (as mentioned above retrieved by 'item'), I think you should call ConnectEvents with a pointer to your frame.

jeremysay wrote:
i'm sorry to ask you so many questions but you are my only h

There's no reason to be sorry ... I think I'll learn nearly as much as you when trying to solve your problems ... it's everytime a new challenge;)

jeremysay6-Feb-03 3:44