Doubt in CTreeCtrl - C / C++ / MFC Discussion Boards

Re: External Hard Disk

Theo Buys7-Jan-09 2:11

Theo Buys

7-Jan-09 2:11

Use GetLogicalDrives(), GetLogicalDriveStrings() and GetDriveType().

Getting the thread count of a process

Green Fuze31-Dec-08 0:06

Green Fuze

31-Dec-08 0:06

Hey everybody!

How can I get the thread count of a process - like in task manager?
I have a handle to that process, but I can't find a way to get the count of the running threads.

Does anyone know how to do that?

Thanks!!!!

Re: Getting the thread count of a process

Jijo.Raj31-Dec-08 0:39

Jijo.Raj

31-Dec-08 0:39

First get the process id from your handle by calling GetProcessId(). Then Iterate the process in system[^] and locate your process by matching the process id. Then you'll get the total count of threads from PROCESSENTRY32.cntThreads.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: Getting the thread count of a process

Green Fuze31-Dec-08 1:32

Green Fuze

31-Dec-08 1:32

Thanks!

<h3>get the .exe current path</h3>

Mustapha Rédouane30-Dec-08 23:15

Mustapha Rédouane

30-Dec-08 23:15

need a code returning the current path of my exe
thx

Re: get the .exe current path

enhzflep30-Dec-08 23:27

enhzflep

30-Dec-08 23:27

GetModuleFileName

Re: get the .exe current path

Krishnakumartg31-Dec-08 3:23

Krishnakumartg

31-Dec-08 3:23

You can use _pgmptr.

Regards,
Krishnakumar

Doubt in CTreeCtrl

KASR130-Dec-08 23:12

KASR1

30-Dec-08 23:12

I have created a tree control and added few items in it.
And i have used TVN_SELCHANGED notify message as below.
But i am not able to get item names using LPNMTREEVIEW structure instead its showing junk chars.

void CMyDlg1::OnTvnSelchangingTreectrl(NMHDR *pNMHDR, LRESULT *pResult)
{
   LPNMTREEVIEW pNMTreeView = reinterpret_cast<lpnmtreeview>(pNMHDR);

   CString str = pNMTreeView->itemNew.pszText; //junk values?
   
   CString str1 = m_TreeCtrl.GetItemText(m_TreeCtrl.GetSelectedItem()); // OK

   .....
}</lpnmtreeview>

Re: Doubt in CTreeCtrl

enhzflep30-Dec-08 23:24

enhzflep

30-Dec-08 23:24

According to MSDN, that is to be expected.

"The itemOld and itemNew members of the NMTREEVIEW structure are TVITEM structures that contain information about the previously selected item and the newly selected item. Only the mask, hItem, state, and lParam members of these structures are valid. The stateMask members of the TVITEM structures specified by itemOld and itemNew are undefined on input."

TVN_SELCHANGED Notification[^]

set System Resolution..........

shaina223130-Dec-08 20:57

shaina2231

30-Dec-08 20:57

using
int DialogWidth = GetSystemMetrics(SM_CXSCREEN);
int DialogHeight = GetSystemMetrics(SM_CYSCREEN);
system Resolution is get but how to set System Resolution(by giving width and height) using code is there some methods?

Re: set System Resolution..........

Malli_S30-Dec-08 21:11

Malli_S

30-Dec-08 21:11

To set screen resolution, you've to use ChangeDisplaySettings(). For that this[^] will help you. May need to have a look at this[^] too. And I think you can dig out better how to use them. Smile | :)

[Delegates] [Virtual Desktop] [Tray Me !]

-Malli...!

Re: set System Resolution..........

Radhakrishnan G.1-Jan-09 2:21

Radhakrishnan G.

1-Jan-09 2:21

Please try with
SystemParametersInfo() with SPI_SETWORKAREA

Regards
Radhakrishnan G.

Use of SetProcessAffinityMask

AmitCohen22230-Dec-08 20:09

AmitCohen222

30-Dec-08 20:09

Hi All !

I'm running an application that spwans several processes and threads, it runs on Windows 2003 Server OS and using 8 cpu's machine(Xeon).
We are considering the use of SetProcessAffinityMask to allocate heavy processing jobs to a spcific cpu. My question therfore is this:

Using SetProcessAffinityMask, is it possible to tell the OS that I want my process to be the only one using that cpu (i.e. no other process, mine or the OS's, is allowed to run on it) ? is it possible ? Unsure | :~

We wish to get deteministic results when system is working for long periods of time.

thanks,
Amit Smile | :)

Re: Use of SetProcessAffinityMask

Mark Salsbery31-Dec-08 6:31

Mark Salsbery

31-Dec-08 6:31

AmitCohen222 wrote:
no other process, mine or the OS's, is allowed to run on it) ? is it possible ?

I don't believe so.

You may want to use SetThreadAffinityMask to distribute threads among processors,
but there's no guarantee the system will actually use your suggestions.

Try it and test it thoroughly to see if you're actually getting any benefit -
from my experience, on XP and above, the OS thread scheduler does a pretty good
job without intervention.

Mark

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

Command Line argument for MFC Application

Anubhava Dimri30-Dec-08 19:31

Anubhava Dimri

30-Dec-08 19:31

HI,
I want to pass argument for my application.My application is dialog based.so Please help me i have no idea how to do it.

Thanks

mailto: anubhava.prodata@gmail.com

Re: Command Line argument for MFC Application

Garth J Lancaster30-Dec-08 20:04

Garth J Lancaster

30-Dec-08 20:04

http://www.codeproject.com/KB/recipes/ccmdline.aspx[^]

is one way - its easy enough to use Google for more

'g'

Re: Command Line argument for MFC Application

Paresh Chitte30-Dec-08 22:38

Paresh Chitte

30-Dec-08 22:38

If you wish to pass command line arguments in IDE go to "Project | Properties | Debugging | Command Arguments". Here you can specify your command line arguments.

Hope this will help you.

Thanks,
Paresh.

Re: Command Line argument for MFC Application

Anubhava Dimri30-Dec-08 22:58

Anubhava Dimri

30-Dec-08 22:58

But how to check the passed arguments value at the initilization of application.

Best Regard
Anubhava Dimri

mailto: anubhava.prodata@gmail.com

Re: Command Line argument for MFC Application

Paresh Chitte30-Dec-08 23:27

Paresh Chitte

30-Dec-08 23:27

In CWinApp::InitInstance.
Please have a look at CWinApp::m_lpCmdLine.

Hope this will serve your purpose.

Regards,
Paresh.

Re: Command Line argument for MFC Application

Anubhava Dimri30-Dec-08 23:47

Anubhava Dimri

30-Dec-08 23:47

It's very helpful for me.

Very -2 Thanks

Best Regard
Anubhava Dimri

mailto: anubhava.prodata@gmail.com

Re: Command Line argument for MFC Application

Mark Salsbery31-Dec-08 6:34

Mark Salsbery

31-Dec-08 6:34

You can also use the CCommandLineInfo Class[^]

Mark

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

how do i create,read and write xml file using VC++6.0?

puppya30-Dec-08 19:09

puppya

30-Dec-08 19:09

i have 1 dialog application.my dialog
application is sending some messages to other appication.i want to save these
messages into xml file and so that later it can be executed.means i neeed to implement
to create,read n write to xml file.
thanks in advance

Re: how do i create,read and write xml file using VC++6.0?

Garth J Lancaster30-Dec-08 20:11

Garth J Lancaster

30-Dec-08 20:11

have you tried using Google or using the search feature here on CP ? give us a break and try to help yourself ...

http://www.grinninglizard.com/tinyxml/[^]

or

http://www.codeproject.com/KB/recipes/FlexibleParser.aspx[^]

for example

'g'

Re: how do i create,read and write xml file using VC++6.0?

Jijo.Raj30-Dec-08 22:22

Jijo.Raj

30-Dec-08 22:22

You can use MSXML[^] for doing XML related stuffs. The following articles will be useful.

1) Using MSXML to read XML documents[^].
2) CXml - A Wrapping Class for MSXML 3.0/4.0/5.0/6.0[^].
3) Plus a lot of articles in CodeProject XML Section[^].

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Re: how do i create,read and write xml file using VC++6.0?

bob1697231-Dec-08 4:17

bob16972

31-Dec-08 4:17

Download the Microsoft XML Parser SDK and dig through the documentation. You'll probably find that using smart pointers and the DOM approach to be adequate for most scenarios.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.