C / C++ / MFC Discussion Boards

Re: Looking for C++ CWnd equivalent of C#'s Control.Invoke, Control.IsInvokeRequired

Mark Salsbery30-Aug-08 6:46

30-Aug-08 6:46

Typically UI processing is all done on one thread.

You can post messages from another thread to windows created
on the UI thread. The posted messages will be queued and processed
on the UI thread.

I've personally never needed a "IsInvokeRequired" since I generally
know if I'm writing UI thread code or not.

Mark

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

opening network connections

VCProgrammer30-Aug-08 1:50

VCProgrammer

30-Aug-08 1:50

Hi all,

I want to open network connection dialog, how can i do so?

thanks in advance

Re: opening network connections

Dr. Emmett Brown30-Aug-08 3:34

Dr. Emmett Brown

30-Aug-08 3:34

I'm not sure if this is what you're looking for, but you can find a windows app called rasphone.exe in C:\Windows\System32.

So, something like this might help:

ShellExecute(0, 0, _T("rasphone.exe"), 0, 0, SW_SHOW);

When you execute that, it will let you connect, disconnect, and edit properties of you network connections.

Hope it helps. Smile | :)

Re: opening network connections

David Crow30-Aug-08 4:30

David Crow

30-Aug-08 4:30

Have you tried SHGetFolderLocation(NULL, CSIDL_CONNECTIONS, ...)? That would get you a PIDL that can then be used to obtain the actual path of the "Network Connections" virtual folder.

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

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: opening network connections

Mark Salsbery30-Aug-08 6:41

Mark Salsbery

30-Aug-08 6:41

The control panel "dialog"?

If so...

// On Vista:
::CreateProcess(_T("C:\\Windows\\System32\\control.exe"),
_T(" /name Microsoft.NetworkAndSharingCenter"),
...

// On older OSs (I didn't test this):
::CreateProcess(_T("C:\\Windows\\System32\\control.exe"),
_T(" ncpa.cpl"),
...

And if that's the wrong dialog, never mind Smile | :)

Mark

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

Re: opening network connections

VCProgrammer31-Aug-08 20:16

VCProgrammer

31-Aug-08 20:16

thanks for your solution it worked for vista but the one which you gave for lower version is not working(xp i have checked)....

Re: opening network connections

VCProgrammer31-Aug-08 20:41

VCProgrammer

31-Aug-08 20:41

sorry its working thanks for your answer

Create folders in VC++

AnithaSubramani30-Aug-08 0:14

AnithaSubramani

30-Aug-08 0:14

Hi All,

I just want to know how to create folders using Vc++ code...

Thanks & Regards

Anitha

Re: Create folders in VC++

Rane30-Aug-08 0:31

Rane

30-Aug-08 0:31

You may use the Win32 API CreateDirectory to create a new folder.
If the function succeeds, the return value will be nonzero.

Regards,
Rane

Re: Create folders in VC++

AnithaSubramani30-Aug-08 0:35

AnithaSubramani

30-Aug-08 0:35

Im using MFC (dialog based application).

Re: Create folders in VC++

santhoshv8430-Aug-08 1:30

santhoshv84

30-Aug-08 1:30

Hi,

You can use WIN32 API in MFC also..

The price of anything is the amount of life you exchange for it.

Thanks and Regards.
SANTHOSH V

Re: Create folders in VC++

zafersavas30-Aug-08 5:13

zafersavas

30-Aug-08 5:13

Here is sample code for what Rane says:

if (::<code>CreateDirectory</code>("C:\\temp\\", NULL) == 0) // Check if succesfull
{
  // To do when unsuccesfull. Maybe the directory already exists?
}
else
{
  // To do when succesfull
}

zafer

RegEnumValue : Not able to retreive registry value for Date format..

Supriya Tonape29-Aug-08 23:56

Supriya Tonape

29-Aug-08 23:56

Hi,
Can anybody tell me why am I not getting Value's data in below code, in buffer 'pszRegValData' ? The surprising thing is that I am able to receive other value's data in it which has REG_SZ datatype... but the value for which it's not giving any output has REG_SZ as a datatype too.. data for it is "04/26/2007 10:20:01".. It's not giving me data in buffer(pszRegValData) for REG_BINARY too...

retCode = RegEnumValue(hkScanKey, i,
szRegValueName,
&dwRegValNameLen,
NULL,
&dwRegValType,
(LPBYTE)pszRegValData,
&dwRegValLen);

Thanks in advance.

regards,
Supriya Tonape

Re: RegEnumValue : Not able to retreive registry value for Date format..

Supriya Tonape30-Aug-08 0:04

Supriya Tonape

30-Aug-08 0:04

also the error code I get is '234' though I am making sure that buffer has enough size to hold the returned data...

Re: RegEnumValue : Not able to retreive registry value for Date format..

David Crow30-Aug-08 4:24

David Crow

30-Aug-08 4:24

Supriya Tonape wrote:
also the error code I get is '234'...

Which is not an error, but means that more data is available.

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

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: RegEnumValue : Not able to retreive registry value for Date format..

Supriya Tonape31-Aug-08 21:48

Supriya Tonape

31-Aug-08 21:48

thanks for the reply. But I am already making sure that buffer size is enough to store the data...by API 'RegQueryInfoKey()' I am getting max length of value's data.. I am executing it before 'RegEnumValue()' and allocating the buffer for value (length returned by 'RegQueryInfoKey' + 1)... still why 234 error ? Frown | :(

Re: RegEnumValue : Not able to retreive registry value for Date format..

David Crow1-Sep-08 3:58

David Crow

1-Sep-08 3:58

Supriya Tonape wrote:
...still why 234 error ?

It's not an error, but means that more data is available.

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

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: RegEnumValue : Not able to retreive registry value for Date format..

Supriya Tonape1-Sep-08 4:00

Supriya Tonape

1-Sep-08 4:00

I just traced my code and found that for every character it's taking 2 bytes.. and I am allocatiing buffer as per length returned by 'RegQueryInfoKey' which returned length of longest value data... for example actual date string/data(REG_SZ) length is 20 but when 'RegEnumValue' gets the date string/data, the length returned is 40(in last param of 'RegEnumValue').... So I doubled my buffer's size but still it gives me same problem... any suggestions ? I am running my 'console' appln on 32 bit intel proc with 32-bit XP OS on it...

Re: RegEnumValue : Not able to retreive registry value for Date format..

Supriya Tonape1-Sep-08 4:13

Supriya Tonape

1-Sep-08 4:13

awaiting for reply..

Re: RegEnumValue : Not able to retreive registry value for Date format..

Supriya Tonape1-Sep-08 4:42

Supriya Tonape

1-Sep-08 4:42

I resolved the prob, after each call we need to set the data buffer size back to max value length... sadly this is not quoted in MSDN! it's hard to understand whats going on wrong in code when MSDN says everytime 'RegEnumValue' iterates thru reg values,it returns the data length... I wasted my night for this silly problem...

Re: RegEnumValue : Not able to retreive registry value for Date format..

smags1321-Sep-09 7:12

smags13

21-Sep-09 7:12

...
I will try that. But I have alread wasted a whole weekend until I see your post
...

Copy one file to temp file

manju#12329-Aug-08 23:42

manju#123

29-Aug-08 23:42

Hi all..
I have one file and i want to move it to the temporary path....
can anyone help me..

manju

Hi..
I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++
manju

Re: Copy one file to temp file

David Crow30-Aug-08 4:26

David Crow

30-Aug-08 4:26

manju#123 wrote:
can anyone help me..

With moving the file or figuring out what your temporary folder is?

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

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Copy one file to temp file

Perspx31-Aug-08 13:22

Perspx

31-Aug-08 13:22

Use the GetTempPath() function to retrieve the path of the temporary files directory - see the documentation here.

Then to copy the file use the CopyFile() or CopyFileEx() function to copy the file to the temporary directory.

Regards,
--Perspx

"The Blue Screen of Death, also known as The Blue Screen of Doom, the "Blue Screen of Fun", "Phatul Exception: The WRECKening" and "Windows Vista", is a multi award-winning game first developed in 1995 by Microsoft" - Uncyclopedia

Introduction to Object-Oriented JavaScript

Converting a Text into an Integer

Rane29-Aug-08 20:45

Rane

29-Aug-08 20:45

Hi,

I'm in need of a conversion routine to convert a string into a integer(long). I'm relying on CRT function _tcstol to do this. Below shown is my approach:

main()
{
_TCHAR *q = 0;
char txt[] = "5x";
long l = _tcstol(txt, &q, 10);
if (q && _tcsclen(q))
{
cout<<"Invalid Integer";
}
}

I'm relying on parameter2 in _tcstol to validate a integer. (i.e)the endptr Pointer to character that stops scan.

Will this approach work fine in all cases?

Thanks in Advance

Rose | [Rose]

Rane

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