Making an application that runs in the background of the system - C / C++ / MFC Discussion Boards

The_Server1-Sep-01 22:46

1-Sep-01 22:46

does anyone know how can I make .hlp file ?

BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

Re: Help File.

Christian Graus1-Sep-01 23:38

Christian Graus

1-Sep-01 23:38

I *live* on DALNet. But I joined and was deoped and alone...

Christian

As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet.

Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery.

Re: Help File.

The_Server2-Sep-01 0:15

The_Server

2-Sep-01 0:15

Don't forget that the channle is new. Cry | :((

If I built it, thay will come.;)

and if you want op/aop/sop just ask PokiDoki (that's me Smile | :)

)

BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

Re: Help File.

Christian Graus2-Sep-01 0:22

Christian Graus

2-Sep-01 0:22

Hey, cool. Can I be an op please ? Rose | [Rose]

Christian

As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet.

Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery.

Re: Help File.

The_Server2-Sep-01 1:32

The_Server

2-Sep-01 1:32

sure.

just come and ask PokiDoki Cool | :cool:

BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

serial port, parallel port, and usb

Maer7271-Sep-01 16:50

Maer727

1-Sep-01 16:50

How can I find articles about programming with serial port, parallel port, and usb?

Thanks.

Maer

Re: serial port, parallel port, and usb

2-Sep-01 2:16

Considering the amount of postings from some people, one could think that some people tried The Code Project before they tried MSDN.

Making an application that runs in the background of the system

fried1-Sep-01 8:55

fried

1-Sep-01 8:55

Hey people!
I'm writing a winsock app. in Visual C++. The application needs to run in the background of the system. ie: there is no window and it is not on the task bar. Any suggestions? Roll eyes | :rolleyes:

Carl

Re: Making an application that runs in the background of the system

Tim Smith1-Sep-01 9:13

Tim Smith

1-Sep-01 9:13

Don't create a window. Or don't make it visible.

Tim Smith
Descartes Systems Sciences, Inc.

Re: Making an application that runs in the background of the system

Ravi Bhavnani1-Sep-01 9:28

Ravi Bhavnani

1-Sep-01 9:28

http://www.codeproject.com/docview/notaskbaricon.asp

/ravi

"There is always one more bug..."
http://www.ravib.com
ravib@ravib.com

Re: Making an application that runs in the background of the system

Anders Molin2-Sep-01 2:50

Anders Molin

2-Sep-01 2:50

What Windows versions do you need it to run on?

If you don't need to support Win9x, I would make a Service...

- Anders

Money talks, but all mine ever says is "Goodbye!"

Making another window modal

James Bird1-Sep-01 8:29

James Bird

1-Sep-01 8:29

I am having problems trying to get another window modal (eg. Windows Paint, or Calculator) from my program.

Here's is my meathod:

- Get the window (CWnd*) by using the FindWindow(...) function
- Use BeginModalState() to make it modal...

However, this makes my program stop responding and only makes the other window modal to my program (not anyother window open).

I would be very greatful if someone could help me...

Thanks in advance,

James Bird - birdjames@bigfoot.com

Re: Making another window modal

Ravi Bhavnani1-Sep-01 9:32

Ravi Bhavnani

1-Sep-01 9:32

You can't do that for at least 2 reasons: the target window belongs to a different thread (2) which is owned by a different process.

But you can bring the window to the top by calling SetActiveWindow(), SetWindowPos(), BringWindowToTop(), etc. You might also want to FlashWindow() to get the user's attention.

/ravi

"There is always one more bug..."
http://www.ravib.com
ravib@ravib.com

Re: Making another window modal

James Bird1-Sep-01 21:58

James Bird

1-Sep-01 21:58

Is there any way that I can take ownership of the thread - I saw 2 functions,
SetParent() and SetOwner(). Would this work?

I've also had another idea - could I modify the style of the window to WS_EX_TOPMOST using ModifyStyleEx()?

Thankyou for your help,

James Bird - birdjames@bigfoot.com

Detecting when a process is idle

Alex Deem1-Sep-01 6:31

Alex Deem

1-Sep-01 6:31

I am writing an application to do some batch processing. Basically it uses CreateProcess() to create a processes (with the desired command line arguments) over and over a number of times. Each run produces a text file which i will compile together.

My problem however is that the process i am executing will perform its job and NOT close. If i call CreateProcess() while the application is still opened it ignores my arguments and does nothing, so i need to close between each execution.

Can anybody offer any suggestions as to how to detect when the process has completed the work. I am confident that i can tell it to close, im just not sure how to determine when.

The processing time is unpredictable. The cpu is used intensively during the operation. I attempted using the ForegroundIdleProc() hook function to flag me when the foreground thread went idle, however this does not seem to work (the function is hooked ok, as it is called when i close the app as well as scroll around in the app, it just doesnt call it when i want it to!).

Any suggestions would be greatly appreciated.

Alex Deem

Re: Detecting when a process is idle

Michael Dunn1-Sep-01 7:59

Michael Dunn

1-Sep-01 7:59

Call WaitForSingleObject() on the process handle:

STARTUPINFO si = {sizeof(STARTUPINFO)};
PROCESS_INFORMATION pi;
 
  if ( CreateProcess(..., &si, &pi) )
    {
    WaitForSingleObject ( pi.hProcess, INFINITE );
    CloseHandle ( pi.hProcess );
    CloseHandle ( pi.hThread );
    }

Your thread will block in the Wait call until the child process exits.

--Mike--
http://home.inreach.com/mdunn/
You are the weakest link, GOODBYE!

Re: Detecting when a process is idle

Alex Deem1-Sep-01 18:43

Alex Deem

1-Sep-01 18:43

I believe u misunderstood me.

The child process does NOT exit. After doing the processing it sits there displaying the results in its UI. (The child app is a 3rd party app, so i have no control over this).

I wish to determine how to detect when the app is sitting there idle, so i can then kill it.

Alex Deem

Re: Detecting when a process is idle

Tomasz Sowinski3-Sep-01 0:07

Tomasz Sowinski

3-Sep-01 0:07

Use WaitForInputIdle.

Tomasz Sowinski -- http://www.shooltz.com

Com drag and drop

1-Sep-01 6:28

Can anybody solve (do a litle magic) the following problem?
I want to make a CComCompositeControl to be a Drop Target,
I know that only CView can be a dropTarget.

I try to register the control as a COleDropTarget, but
call to Register allways fail. Cry | :((

Sergiu.

A question about windows??

1-Sep-01 5:14

If app1 wanted to read the values of app2, it could do so with the following code.
This code will show me the value of labels and buttons, but not data controls
like edit boxes.

Can 1 app read the values of data controls of a second app, or is it some kind of windows
protection mechanism???

thanks

CWnd* pParent = FindWindow(NULL, pcszAppName);
if(pParent && IsWindow(pParent->m_hWnd))
{
CWnd* pChild = pParent->GetWindow(GW_CHILD);
while(pChild)
{
pChild->GetWindowText(strControlText);
TRACE("%s\n", strControlText);
m_ctlReadList.AddString(strControlText);
pChild = pChild->GetWindow(GW_HWNDNEXT);
}
}
Laugh | :laugh:

Re: A question about windows??

1-Sep-01 7:30

GetWindowText and SetWindowText do not work with Windows in a different process.
You need to use SendMessage instead. Tis is te way you need to use it:

For GetWindowText

TCHAR wndText[512];
::SendMessage(hwnd,WM_GETTEXT,sizeof(wndText)/sizeof(TCHAR),(LPARAM)(void*)wndText);

For SetWindowText

char text[512];
...
::SendMessage(wndEdit,WM_SETTEXT,0,(LPARAM)text);

regards

Re: A question about windows??

1-Sep-01 15:33

Thank you.

That was excellent information.

Full Screen Window

1-Sep-01 2:49

I want to make a full screen application that makes window as full screen.
e.g pin ball

Can any one help.

Re: Full Screen Window

The_Server1-Sep-01 2:55

The_Server

1-Sep-01 2:55

you can use ChangeDisplaySettings.

Name: STR
BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

Re: Full Screen Window

NormDroid1-Sep-01 3:07

NormDroid

1-Sep-01 3:07

Try this in MSDN
Adding a Full Screen Feature to an MFC Application ID: Q164162

Regards
Norm

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