How to set the initial directory of the CFileDialog to be 'My Computer'? - C / C++ / MFC Discussion Boards

knapak15-Dec-05 9:32

15-Dec-05 9:32

Hi all

I have a code that runs a simulation producing numeric outputs of a time series multiple times. I don't know in advance how long is the series or how many times the simulation will run (defined by user at run time). I would like to have the program to write the results out to a file in one column per simulation run instead of a single column where the result of each simulation is separated by some marker.

The code to write the output in one column would be something like this:

<code>ofstream WriteOutput(OutputData.out,ios::app)
for(sim=1; sim<=nsims; sim++)
{
for(t=1; t<=n; t++)
{
y=f(x[t]);
WriteOutput >> y >> endl;
if(t==n) WriteOutput >> "#" >> endl;
}
}</code>

This produces an output like this:

3
4
5
6
#
4
5
6
7
#

Instead, I'd like a code to write an output such as:

3 4
4 5
5 6
6 7

How can I do this?

Thanks!

C.

Re: Problem about output files

C^hris L^osinger15-Dec-05 10:01

C^hris L^osinger

15-Dec-05 10:01

store all the numbers , then print them out when input stops ?

Cleek | Image Toolkits | Thumbnail maker

Re: Problem about output files

knapak15-Dec-05 10:07

knapak

15-Dec-05 10:07

Yeah that works... I was wondering if there was a direct way to format the output in columns.

Thanks!

Re: Problem about output files

Nish Nishant15-Dec-05 10:11

Nish Nishant

15-Dec-05 10:11

knapak wrote:
Yeah that works... I was wondering if there was a direct way to format the output in columns.

~~If you are not worried about portability issues, you can use SetConsoleCursorPosition~~

-- modified at 17:16 Thursday 15th December, 2005

Re: Problem about output files

knapak15-Dec-05 10:51

knapak

15-Dec-05 10:51

Can you explain? Portability? How do you use SetConsoleCursurPosition? I'm writing to a file not sending out to console.

Thanks

Re: Problem about output files

Nish Nishant15-Dec-05 11:16

Nish Nishant

15-Dec-05 11:16

knapak wrote:
Can you explain? Portability? How do you use SetConsoleCursurPosition? I'm writing to a file not sending out to console.

Oops, ignore my post then Frown | :-(

Re: Problem about output files

PJ Arends15-Dec-05 13:49

PJ Arends

15-Dec-05 13:49

the endl that you are outputting after every number is what causes the newline to be output. Just control when you output an endl.

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How to set the initial directory of the CFileDialog to be 'My Computer'?

Cyrus Dang15-Dec-05 9:23

Cyrus Dang

15-Dec-05 9:23

Hi,

So far, I did it by setting the initial dir to be C:\ and then sending a virtual click to "Up One Level" button. Do we have any better ways to do that? I think it should have some special string so that CFileDialog could understand and start the dialog with "My Computer" as its initial directory. Unfortunately, I've not found it yet! Please help me.

Thanks in advance.

Re: How to set the initial directory of the CFileDialog to be 'My Computer'?

Nish Nishant15-Dec-05 9:34

Nish Nishant

15-Dec-05 9:34

Set the initial directory to ::{20D04FE0-3AEA-1069-A2D8-08002B30309D}

CFileDialog f(TRUE);
f.m_ofn.lpstrInitialDir = L"::{20D04FE0-3AEA-1069-A2D8-08002B30309D}";
f.DoModal();

Re: How to set the initial directory of the CFileDialog to be 'My Computer'?

Cyrus Dang15-Dec-05 9:46

Cyrus Dang

15-Dec-05 9:46

I truly appreciate your help.

Another thing I wonder is that whether this is documented by Microsoft. I'm testing it on previous version of Windows (NT, 9x). Will it be changed in the future?

Thanks so much.

Re: How to set the initial directory of the CFileDialog to be 'My Computer'?

David Crow15-Dec-05 10:09

David Crow

15-Dec-05 10:09

That CLSID has resolved to 'My Computer' since Windows 95. I see no reason for it to change in the future.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: How to set the initial directory of the CFileDialog to be 'My Computer'?

Nish Nishant15-Dec-05 10:09

Nish Nishant

15-Dec-05 10:09

I am not sure of Vista, but it should work the same in 98, 2000, XP and 2003.

Question on SOAP with Attachments/DIME/Web Services

Anaxarchos15-Dec-05 7:54

Anaxarchos

15-Dec-05 7:54

I am developing a web service application using ASP.NET and the MS WSE (Web Service Enhancements). On the server side, there is an asmx file running on IIS wich is able to recieve a SOAP message with a DIME attachment (e.g. an *.gif).
Now I am developing a client that can send those messages with a DIME attachment.
Here's the basic method I am trying to implement:

// ***********
SoapContext *reqC = RequestSoapContext::Current;
DimeAttachment *dimeAttach = new DimeAttachment(
"image/gif", TypeFormat::MediaType,
"C:\\temp\\IMG_3621.jpg");

reqC->Attachments->Add(dimeAttach); //System.NullReferenceException???
// ************

When I am trying to build the programme, the process breaks with an exception, claiming there was a "System.NullReferenceException" (Object reference not set to an instance of an object)in the last line of code posted above.
What does that mean?
The above method is taken from a MSDN example wich is also quoted here on codeproject.com (http://www.codeproject.com/soap/DimeTest.asp). In the examples it is used as a server method (the server sends a SOAP message with a DIME attachment on client request), but I need it as a client method so I changed the SoapContext into a "RequestSoapContext" instead of a "ResponseSoapContext".
I did include all the necessary namespaces and headers, the compiler accepts all commands without throwing any errors, the error appears during build/debug.
The examples are in C# but I am not familiar with it so I need to be doing it in C++.

Thank you in advance for any hints!

P.S: I am not a native english speaker- please excuse my faults.

CFileDialog allows bad filenames

Ally_Sutherland15-Dec-05 7:23

Ally_Sutherland

15-Dec-05 7:23

Hi,

I'm using CFileDialog and have setup the extensions etc and it seems to work correctly.
The only problem is that if a type a non existent filename into the filename text box and select open CFileDialog exits (DoModal returns IDOK).

Surely I don't have to check that the file from calling GetPathName() exists?

Cheers,
Ally

Re: CFileDialog allows bad filenames

David Crow15-Dec-05 7:31

David Crow

15-Dec-05 7:31

Why not use OFN_FILEMUSTEXIST?

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: CFileDialog allows bad filenames

Ally_Sutherland15-Dec-05 7:54

Ally_Sutherland

15-Dec-05 7:54

Thanks for that got it sorted. I knew there must be a way to do it. Smile | :)

How to simulate clicks on toolbar buttons?

Cyrus Dang15-Dec-05 7:19

Cyrus Dang

15-Dec-05 7:19

Hi,

I tried both TB_PRESSBUTTON and WM_LBUTTONDOWN, but I failed. Do you have any ideas to solve this problem?

Thanks in advance.

Re: How to simulate clicks on toolbar buttons?

Maximilien15-Dec-05 7:49

Maximilien

15-Dec-05 7:49

do you need a visual feedback ?

Toolbar buttons are COMMANDS, so , you could ( never tried it ) do a SendMessage with the appropriate command ID.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: How to simulate clicks on toolbar buttons?

#realJSOP15-Dec-05 8:03

#realJSOP

15-Dec-05 8:03

I would do a PostMessage myself...

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Re: How to simulate clicks on toolbar buttons?

Maximilien15-Dec-05 9:11

Maximilien

15-Dec-05 9:11

yep, thanks.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: How to simulate clicks on toolbar buttons?

Cyrus Dang15-Dec-05 8:38

Cyrus Dang

15-Dec-05 8:38

Hi,

I tried to send the WM_COMMAND to my toolbar, it worked. But it failed when I sent that message to the toolbar of the Open File Dialog (CFileDialog). Here is my code:

<br />
hwndToolBar = ::FindWindowEx(hwndParent, NULL, _T("ToolbarWindow32"), NULL);<br />
::SendMessage(hwndToolBar, WM_COMMAND, MAKEWPARAM((WORD)40961, CN_COMMAND), NULL); // 40961 is the ID of the "Up One Level" button.<br />

I didn't know why it failed. Please help me. What I need is programmatically clicking on the "Up One Level" button.

Thanks in advance.

-- modified at 14:39 Thursday 15th December, 2005

Re: How to simulate clicks on toolbar buttons?

Nish Nishant15-Dec-05 9:02

Nish Nishant

15-Dec-05 9:02

Are you sure the FindWindowEx returns an HWND? Perhaps it returns NULL.

Re: How to simulate clicks on toolbar buttons?

Cyrus Dang15-Dec-05 9:12

Cyrus Dang

15-Dec-05 9:12

It works now. The problem is that when I send the message. It wouldn't work in WM_INITDIALOG and WM_NOTIFY (code CDN_INITDONE). It worked well in WM_NOTIFY (code CDN_SELCHANGE and probably others but I've not tested yet!)

Thanks for helping.

Re: How to simulate clicks on toolbar buttons?

Nish Nishant15-Dec-05 9:28

Nish Nishant

15-Dec-05 9:28

That's cool, but to be safe, you should always check if FindWindow(Ex) succeeds before using the HWND.

Windows monitor number

Manu_8115-Dec-05 6:18

Manu_81

15-Dec-05 6:18

Hi,
In Win32 app...is there any way to find the Windows Monitor number programatically???
Thanks.

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