C / C++ / MFC

Re: How to Associate a File Extension with a Program

10-Jul-08 15:34

Sorry, Getting Older, I forgot.

There is a way of registering a File Extension with an App at Startup. Forgot how to do that.

Regards, Sleepy | :zzz:

Bram van Kampen

Nelek10-Jul-08 21:29

Nelek

10-Jul-08 21:29

Take a look three messages below this one. The question is asked and answered with some links.

Regards.
--------
M.D.V. Wink | ;)

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
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Re: How to Associate a File Extension with a Program

Bram van Kampen11-Jul-08 14:31

Re: How to Associate a File Extension with a Program

11-Jul-08 14:31

I've found it since. What I was looking for was:
void CWinApp::RegisterShellFileTypes(BOOL bCompat)

Bram van Kampen

Bram van Kampen12-Jul-08 13:02

Re: How to Associate a File Extension with a Program

12-Jul-08 13:02

Hi,
Well, the question 3 lines below covered the same topic, but did not cover what I was after. I was looking for the Name of: CWinApp::RegisterShellFileTypes(); (I could at the time not think of the Name, and was not sure of the class it belonged to). The business part of this resides in CDocManager. I am now doctorring that code to register critical extensions in my setup program.

Thanks anyways for the Interest you showed in my question.

Regards, Smile | :)

Bram van Kampen

Mark Salsbery11-Jul-08 6:31

Mark Salsbery

11-Jul-08 6:31

Hi Bram.

Wake up!

Introduction to File Associations[^]

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: How to Associate a File Extension with a Program

Bram van Kampen11-Jul-08 14:30

Re: How to Associate a File Extension with a Program

11-Jul-08 14:30

I've found it since. What I was looking for was:
void CWinApp::RegisterShellFileTypes(BOOL bCompat)

Thanks

Bram van Kampen

Bram van Kampen12-Jul-08 16:08

why can't I print an icon?

12-Jul-08 16:08

Hi Mark,

My question was a bit more subtle. I never use the Document Interface, but actually what I was looking for (and since found) was 'CWinapp::RegisterShellFileTypes()'

I am hacking that now in order that my instalation program sets file asociations for rarely used utilities. For example, many european ISP's do not allow DLL's EXE's etc to be send as an e-mail attachment. No Problem, I wrote a utility which converts the binary into a text file, which I gave the extension say '.QXP' I also include in the release, a program that silently (no UI if things go Right) converts the QXP file back. The idea is also that double clicking by the usr on a 'QXP' file should start the conversion back

All this works, and fails gracefully on error. There is one issue remaining, and I'm running out of computers to test it, and that is, what does 'CWinApp::EnableShelOpen()'actually do.( This is subject to another posting).

Regards Smile | :)

Bram van Kampen

tataxin10-Jul-08 15:33

tataxin

10-Jul-08 15:33

I want to print some icons. Here is my code:

CDC* m_PrintDC;
// attach m_PrintDC with printer success .....

CPoint point(10, 10);
HICON aIcon = AfxGetApp()->LoadIcon(IDI_ICON_CHECKEDBOX);
m_PrintDC->DrawIcon(point, aIcon);

//m_PrintDC->DrawText("xxxxxxxxx", &aRect,DT_SINGLELINE | DT_LEFT);

Here IDI_ICON_CHECKEDBOX is a icon ID that I draw.
But it doesn't work, I don't know why?? I can print some text with DrawText(...).

Anyone know what's wrong here? Thank you in advance.

Mark Salsbery11-Jul-08 6:34

Mark Salsbery

11-Jul-08 6:34

What's the dpi on the printer DC?

A 32x32 icon will be pretty small on a 1400dpi printer Smile | :)

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Bram van Kampen12-Jul-08 16:25

12-Jul-08 16:25

Yes, without other mapping,
about 0.023 inch per side.The final rendering software may pass that off as noise and decide to print a blank page. Smile | :)

Regards

Bram van Kampen

tataxin13-Jul-08 14:43

tataxin

13-Jul-08 14:43

thank you for your reply!
my printer is HP LaserJet 3052, with 1200dpi.

So do you have any idea what I should do in this case?

Bram van Kampen15-Jul-08 14:47

15-Jul-08 14:47

Create a New Bitmap of fixed dimensions of your choice, Bitbuild your Icon in it, using stretch mode, and then print this new bitmap.

Regards, Smile | :)

Bram van Kampen

Using getenv

rocktx10-Jul-08 8:17

rocktx

10-Jul-08 8:17

I have a visual c++ program and I am trying to get the value of an environment variable using the getenv function. Seems pretty simple but when i call it in the debugger I get the message "Please enter path for libcpd.pdb." Does anyone know why this happens on this function?

Note: The program compiles and builds witjh no errors. Only when I run it I get the problem

Here are my includes (although I dont think it has anything to do with this):

stdio.h
stdlib.h
iostream.h
cstdlib.h
windows.h

Rock

Re: Using getenv

David Crow10-Jul-08 8:43

Re: Using getenv [modified]

10-Jul-08 8:43

rocktx wrote:
...I get the message "Please enter path for libcpd.pdb."

See here.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Bram van Kampen12-Jul-08 16:42

get_anchors doesn't return all anchors

12-Jul-08 16:42

What is happening here! Never seen such message using VC 5.00. Missing Libraries? the code would not link! Seems that the latest linker links missing modules to a Mesage Box, leaving an error message to the End User!

That is totally unacceptable behaviour!

Sorry, This is a message given by the Debugger. The error occurred in the Library, but in order to show the window with the Source Code, the Debugger needs the pdb. Just check where this PDB is stored and go to that Directory. Then you'll get a breakpoint at the offending line.

Regards, Dead | X|

Bram van Kampen

modified on Tuesday, July 15, 2008 8:48 PM

Mohammad Tarik10-Jul-08 7:30

10-Jul-08 7:30

Hello,

I am trying to get all links on an web page. Unfortunately, the "get_anchors" doesn't seem to retrieve all anchor elements. I have pages full of links and all I get are few or none.

I'm using Visual C++ 2003. I have an MFC Dialog application with embedded webbrowser control.

Here's my code: (btw, GetDocument function calls IWebBrowser::get_Document() function and it works fine with things other than getting anchors).

HRESULT hr;
IHTMLDocument2 * pHtmlDoc = GetDocument();
CStringArray sURLArray;

if (pHtmlDoc != NULL)
{
    IHTMLElementCollection * pColl = NULL;
    hr = pHtmlDoc->get_anchors(&pColl);

    if(SUCCEEDED(hr))
    {
        LONG nElem = 0;
        hr = pColl->get_length(&nElem);

        if(SUCCEEDED(hr))
        {
            for(long i = 0; i < nElem; i++)
            {
                _variant_t vIndex(i);

                IDispatch * pDisp2 = NULL;
                hr = pColl->item(vIndex, vIndex, &pDisp2);
                if(SUCCEEDED(hr))
                {
                    IHTMLAnchorElement * pAnchElem = NULL;
                    hr = pDisp2->QueryInterface(IID_IHTMLAnchorElement, (void**) &pAnchElem);
                    if(SUCCEEDED(hr))
                    {
                        BSTR bstrHref;
                        if(SUCCEEDED(pAnchElem->get_href(&bstrHref)))
                        {
                            CString strLink(bstrHref);
                            if(!strLink.IsEmpty())
                                sURLArray.Add(strLink);
                            SysFreeString(bstrHref);
                        }
                        pAnchElem->Release();
                    }
                    pDisp2->Release();
                }
                MessageBox(sURLArray.GetAt(i));
            }
        }
        pColl->Release();
    }
    pHtmlDoc->Release();
}

Taking a look now at the code. I think that I should have used if(FAILED(...)) return; instead of if(SUCCEEDED(...)) .. it would have been more readable without all these brackets.

Any help is appreciated

Thanks

David Crow10-Jul-08 7:32

10-Jul-08 7:32

So the value of nElem is simply less than it should be?

Mohammed Tarik wrote:
I think that I should have used if(FAILED(...)) return; instead of if(SUCCEEDED(...)) .. it would have been more readable without all these brackets.

Since nElem is the culprit, everything below it is superfluous.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Mohammad Tarik10-Jul-08 7:35

10-Jul-08 7:35

Yes, and sometimes it's zero.

David Crow10-Jul-08 7:45

10-Jul-08 7:45

What URL are you using? I just tried it with a few and get_length() returned the correct value.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Mohammad Tarik10-Jul-08 7:58

10-Jul-08 7:58

I am testing with "flightcenter.co.uk" and "google.com". The first one returns some URLs while the second doesn't return any !!

David Crow10-Jul-08 8:16

10-Jul-08 8:16

Mohammed Tarik wrote:
The first one returns some URLs while the second doesn't return any !!

Do the anchors have a name or id attribute?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Mohammad Tarik10-Jul-08 8:37

10-Jul-08 8:37

No, the URLs returned were strange and I couldn't even find their corresponding anchors. They were like "javascript:submitCJ10.....http://somesite"
As you can see from
hr = pColl->item(vIndex, vIndex, &pDisp2);
I am not trying to put any constraints on the returned URLs.

David Crow10-Jul-08 8:41

10-Jul-08 8:41

Mohammed Tarik wrote:
No...

get_anchors() only returns those that do.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Mohammad Tarik10-Jul-08 8:51