Re: CList Find Question - C / C++ / MFC Discussion Boards

Re: How to make and install an application that run as a 'process'

palbano21-Jun-04 16:45

21-Jun-04 16:45

pointer 1) Use the "Search button at CodeProject and http://msdn.microsoft.com
pointer 2) For background process research "NT Service"
pointer 3) For Tray Icon in task bar research Shell_NotifyIcon()

-pete

Re: How to make and install an application that run as a 'process'

Wayut21-Jun-04 18:21

Wayut

21-Jun-04 18:21

This is the exact information I'm looking for.
Thank you,

Wayut

Re: How to make and install an application that run as a 'process'

Shog⁹21-Jun-04 18:08

Shog⁹

21-Jun-04 18:08

Check this out

Hogwash! We all get along fine once everyone starts doing what I say! James R. Twine, Hope for the Best, Plan for the Worst...

Re: How to make and install an application that run as a 'process'

gamitech22-Jun-04 13:20

gamitech

22-Jun-04 13:20

probably the easiest way to do run it as a process is this one:
for a win32 api.

int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{

while (true)
{
}

return 0;

}

to hide it to tray you have to make more steps:

NOTIFYICONDATA niData;
HINSTANCE hInst;
#define SWM_ENABLED WM_APP + 1 //
#define SWM_EXIT WM_APP + 2 // close the window
BOOL bEnabled = FALSE;
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow);

int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{

// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow)) return FALSE;

// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (int) msg.wParam;

return 0;
}

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
// store instance handle and create dialog
hInst = hInstance;
HWND hWnd = CreateDialog( hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, (DLGPROC)fereastra );
if (!hWnd) return FALSE;

// Fill the NOTIFYICONDATA structure and call Shell_NotifyIcon
ZeroMemory(&niData,sizeof(NOTIFYICONDATA));
niData.cbSize = sizeof(NOTIFYICONDATA);
niData.uID = 1;
niData.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
niData.hIcon = (HICON)LoadImage(hInstance,MAKEINTRESOURCE(IDI_ICON1),
IMAGE_ICON, GetSystemMetrics(SM_CXSMICON),
GetSystemMetrics(SM_CYSMICON),LR_DEFAULTCOLOR);
strcpy(niData.szTip, "Tray Icon");
niData.hWnd = hWnd;
niData.uCallbackMessage = WM_APP;

// Add icon to tray
Shell_NotifyIcon(NIM_ADD, &niData);

// free icon handle
if(niData.hIcon && DestroyIcon(niData.hIcon))
{
niData.hIcon = NULL;
}
return TRUE;
}

gabby

CList Find Question

brdavid21-Jun-04 12:39

brdavid

21-Jun-04 12:39

I am curious if the following procedure is either not possible or if I am doing it wrong.

I have the following declaration for a list

<br />
CList<CEraCls, CEraCls&> m_List;<br />

in my implementation class I run the following command

<br />
CEraCls pEra = FindEra(EraString);<br />
m_List.Find(pEra);<br />

I get a compile errror in <afxtempl.h> warning me about this function

<br />
template<class TYPE, class ARG_TYPE><br />
BOOL AFXAPI CompareElements(const TYPE* pElement1, const ARG_TYPE* pElement2)<br />
{<br />
	ASSERT(AfxIsValidAddress(pElement1, sizeof(TYPE), FALSE));<br />
	ASSERT(AfxIsValidAddress(pElement2, sizeof(ARG_TYPE), FALSE));<br />
<br />
	return *pElement1 == *pElement2;<br />
}<br />

where the return statement at the end has an issue
binary '==' : no operator defined which takes a left-hand operand of type 'const class CEraCls(or there is no acceptable conversion)

Does anyone see what the issue might be? I thought I could use Find in this fashion. Is this not correct?

Thanks!

Re: CList Find Question

Bob Stanneveld21-Jun-04 12:45

Bob Stanneveld

21-Jun-04 12:45

You'll have to overload the "==" operator for your class CEraCls, which does the comparing. After you overloaded the operator, the code should compile just fine.

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: CList Find Question

brdavid22-Jun-04 0:53

brdavid

22-Jun-04 0:53

overloading with the following code produced no change in compile results. Frown | :(

bool CErasCls::operator ==(const CErasCls &Array)
{
    if( m_Code == Array.m_Code &&
        m_Description == Array.m_Description &&
        m_Synopsis == Array.m_Synopsis)
        return true;

    else
        return false;
}

Re: CList Find Question

Bob Stanneveld22-Jun-04 1:41

Bob Stanneveld

22-Jun-04 1:41

the operator== takes 2 parameters:

<br />
bool operator==(const CEraCls &lhs, const CEraCls &rhs)<br />
{<br />
  // code<br />
}<br />

And the overloadeded operator doesn't need to be a member of the class (I don't think it does matter though).

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: CList Find Question

brdavid22-Jun-04 3:44

brdavid

22-Jun-04 3:44

I thought of that and that didn't work either , however the following solution DID work. WTF | :WTF:

<br />
bool operator==(const CEraCls &pCopy) const<br />
{<br />
// code<br />
}<br />

go figure.

thanks for the tip though. Big Grin | :-D

very newbie question...

JabraJabra21-Jun-04 12:30

JabraJabra

21-Jun-04 12:30

hi,
can someone please explain me with simple words whats the diffrence between CxxxDoc and CxxxView?

Help please... Cry | :((

Avi.

Re: very newbie question...

Bob Stanneveld21-Jun-04 12:43

Bob Stanneveld

21-Jun-04 12:43

The class CxxxDoc contains information used by CxxxView.

The CxxxView (often called just "view" or GUI) is the window that a user can actual see.

The CxxxDoc (often called "document") is the class where the data is stored. The document class is also used for serialisation.

If you want to know more about the MFC Doc/View architecture, I suggest you read some articles about it.

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: very newbie question...

JabraJabra21-Jun-04 19:34

JabraJabra

21-Jun-04 19:34

ok, i read and understood the architechture...

but now i have more complicated question (plz help...) -
if i want to query a table from a DB,
should the query operation be at the CxxxDoc and the query results should be shown by the CxxxView?

thanks again, Avi.

Re: very newbie question...

Cedric Moonen21-Jun-04 20:20

Cedric Moonen

21-Jun-04 20:20

Yes, that's the best solution Smile | :)

really really last question

JabraJabra22-Jun-04 6:39

JabraJabra

22-Jun-04 6:39

how do i transfer data from CxxxDoc to CxxxView? Unsure | :~

Avi

Re: really really last question

Cedric Moonen22-Jun-04 22:31

Cedric Moonen

22-Jun-04 22:31

From the document, to obtain a pointer to the view:

	<br />
POSITION Pos = GetFirstViewPosition();<br />
if (Pos)<br />
{<br />
CXXXView* pView = (CXXXView*)GetNextView(Pos);<br />
pView->DoSomething();<br />
.... <br />
Do something with the pointer<br />
}<br />

From the view, to obtain a pointer to the document:

	<br />
CXXXDoc* pDoc = GetDocument();<br />
if (pDoc)<br />
pDoc->DoSomething();<br />

64-bit DLL

Anonymous21-Jun-04 12:25

Anonymous

21-Jun-04 12:25

Has anyone creates a project in Visual Studio 6 for building a 64-bit DLL? Thanks

How to restart a service every 3 hrs or reboot Windows every 3 hours

sysmatrix21-Jun-04 11:02

sysmatrix

21-Jun-04 11:02

Hi!,

I want to know how to make a service that will automatically restart every 3 hours or make windows 2000 server to reboot every 3 hours.

What happend is one of my services has very serious memory leak problem? To found there are bugs could take long time. So before a solution is found, we decide to restart a servier every 3 hours or make windows 2000 server to reboot itself every 3 hours.

Re: How to restart a service every 3 hrs or reboot Windows every 3 hours

palbano21-Jun-04 11:18

palbano

21-Jun-04 11:18

Configure the service to automatically restart in the Recovery tab of the Service Properties.

Then use a TimerQueueTimer set to 3 hours and have the Service Stop itself and exit normally when the timer event fires.

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Re: How to restart a service every 3 hrs or reboot Windows every 3 hours

sysmatrix21-Jun-04 11:42

sysmatrix

21-Jun-04 11:42

I can not able to configure out how to make TimerQueueTimer work. Any exmaple. Thanks.

Re: How to restart a service every 3 hrs or reboot Windows every 3 hours

palbano21-Jun-04 14:08

palbano

21-Jun-04 14:08

GOOGLE for CreateTimerQueueTimer finds the following link on the first page of results

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/using_timer_queues.asp[^]

Re: How to restart a service every 3 hrs or reboot Windows every 3 hours

ThatsAlok21-Jun-04 21:18

ThatsAlok

21-Jun-04 21:18

i don't want to method of retsrting service but i know the method of restrating machine.

you set WM_TIMER message of 5 min
eg
SetTimer(1,1000*300,NULL);//setimer for 5 min
and now make variable that increment after every WM_TIMER message
nCount++;//like this way
when timer equal to 35

use this code for restart
HANDLE hToken; // handle to process token
TOKEN_PRIVILEGES tkp; // pointer to token structure

OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken) ;

// Get the LUID for shutdown privilege.

LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,
&tkp.Privileges[0].Luid);

tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

// Get shutdown privilege for this process.

AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
(PTOKEN_PRIVILEGES) NULL, 0);

use
::InitiateSystemShutdown(NULL,ReturnStr,(DWORD)(atoi(this->m_nmpShutdown.Time)),TRUE,TRUE); this api's
thanks Smile | :)

I Think It will Work
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

Re: How to restart a service every 3 hrs or reboot Windows every 3 hours

gamitech22-Jun-04 13:25

gamitech

22-Jun-04 13:25

check my application, about the simple windos utility. There I have designed a shutdown timer. you can configure it because you have the source code
http://www.codeproject.com/useritems/A_little_window_Utility.asp

gabby

Win32 Serial Communications

rollei35guy21-Jun-04 9:56

rollei35guy

21-Jun-04 9:56

Is 115,200 Baud the max rate for Win32 serial driver? There are definitions for 128kbaud and 256 kbaud but these don't seem to work. If they did they would not work with the device i'm communicating with.

Thanks
Carter

Re: Win32 Serial Communications

Trollslayer21-Jun-04 12:36

Trollslayer

21-Jun-04 12:36

They won't unless you have special hardware that supports them.
The highest standard baudrate is 115,200 baud and then that is divided to get 57,600 (/2), 38,400 (/3) etc.
It is possible they were put in place to support IDSN or something similar and never removed.

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Re: Win32 Serial Communications

rollei35guy21-Jun-04 14:56

rollei35guy

21-Jun-04 14:56

Thanks Elaine!

I think the ISDN (or whatever) support makes sense. I appreciate the help.

Carter

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