C / C++ / MFC

Re: How to show tool tip help for tool bar items?

6-Mar-07 5:28

JFGI[^]

led mike

Ravi Bhavnani6-Mar-07 5:33

Real Time Application - Server Socket

6-Mar-07 5:33

See this[^] article.

/ravi

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ScotDolan6-Mar-07 4:45

ScotDolan

6-Mar-07 4:45

I am developing a flight simulator application that has a MDI interface to entry settings and read some status information. However, I am little lost where i should place the main state machine/loop that controls all of the motion based incoming UDP sockets messasges. Right now, I envision creating a class that starts it's own thread calling running that will recieve and process all the motions movement. Is this a good way to setup a systems. The UDP socket can recieve up to 30 motion commands per second.

//Peusodo Code

 	<br />
<br />
// This function is a seprates thread 	<br />
void service_motion::Runnning( void )   <br />
{<br />
       //Recieve Commands, This object has it's own thread thread the parse incoming packets<br />
       UDP_Socket.GetPacket( &cmdpkt );<br />
<br />
	switch( state )<br />
	{<br />
<br />
	case BOARDING:<br />
		// Checks for Inputs to be in the correct state. <br />
                // Seat Belts, E-Stop, Door Close<br />
                if( inputs == OK ) <br />
                    state = DOCKED_DOWN;<br />
		break;<br />
<br />
	case DOCKED_DOWN:<br />
		// Checks for Inputs to be in the correct state. <br />
                  if( cmdpkt.opcode == START_GAME )<br />
                        state = RUNNING;<br />
		break;<br />
<br />
<br />
	case PAUSED:<br />
		// Accept, End, Level, <br />
		break;<br />
<br />
	case RUNNING:<br />
		// Accepts any pitch and roll command<br />
                if( cmdpkt.opcode == PAUSE )<br />
                     state = PAUSED;<br />
<br />
                if( cmdpkt.opcode == STOP)<br />
                 {<br />
                    stop_motion();<br />
                    state = PAUSED;<br />
                 }<br />
<br />
		break;<br />
<br />
	case EMERGENCY:<br />
		// Disables Networks Commands.<br />
<br />
		break;<br />
<br />
	case RECOVERY:<br />
		// Invertor Control UI, disables Network Commands. <br />
		break;<br />
<br />
<br />
<br />

Scott Dolan
Jernie Corporation
Engineering & Manufacturing
Software, Hardware, & Enclosures

led mike6-Mar-07 4:53

6-Mar-07 4:53

ScotDolan wrote:
switch( state )

That's not a state machine Sigh | :sigh:

led mike

Ravi Bhavnani6-Mar-07 5:36

6-Mar-07 5:36

led mike wrote:
That's not a state machine

A switch statement is a perfectly fine way to implement a FSM. I'm curious why you feel otherwise?

/ravi

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led mike6-Mar-07 5:56

6-Mar-07 5:56

Ravi Bhavnani wrote:
A switch statement is a perfectly fine way to implement a FSM.

Whatever

led mike

ScotDolan6-Mar-07 8:02

ScotDolan

6-Mar-07 8:02

Can this be accomplished using Events or messages? Does it make more sense to read the commands from UDP socket outside the Running Thread and send messages and/or events to FSM?

Scott Dolan
Jernie Corporation
Engineering & Manufacturing
Software, Hardware, & Enclosures

led mike6-Mar-07 8:33

6-Mar-07 8:33

ScotDolan, I have no idea what your project parameters are:

A flight simulator
A UDP Socket
30 UDP commands per second
controls all the motion
EMERGENCY - Disables network commands

What commands? From what? Why a Socket? What Motion? What is "EMERGENCY"? What does "Disables network commands" mean?
What is the desired "result" of all this?

led mike

Mark Salsbery6-Mar-07 15:16

Mark Salsbery

6-Mar-07 15:16

Dude, what are you talking about? Poke tongue | ;-P

"Great job, team. Head back to base for debriefing and cocktails."
(Spottswoode "Team America")

led mike7-Mar-07 4:26

7-Mar-07 4:26

Fish Filet?

led mike

Mark Salsbery7-Mar-07 5:23

Mark Salsbery

7-Mar-07 5:23

"Great job, team. Head back to base for debriefing and cocktails."
(Spottswoode "Team America")

Theory

shiraztk6-Mar-07 4:22

shiraztk

6-Mar-07 4:22

Hi all

Could anyone please show me a good link which gives an in depth study of C++, i mean how the storage occurs, how an object is kept in memory, how all the things are done under ground.

Regards

The Best Religion is Science.
Once you understand it, you will know God.

toxcct6-Mar-07 4:45

toxcct

6-Mar-07 4:45

here[^]

[VisualCalc][Binary Guide updated! ][CommDialogs new! ] | [Forums Guidelines]

shiraztk6-Mar-07 5:17

shiraztk

6-Mar-07 5:17

The Best Religion is Science.
Once you understand it, you will know God.

Ravi Bhavnani6-Mar-07 5:38

6-Mar-07 5:38

Imho, you're more likely to find this kind of information in a textbook.

/ravi

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shiraztk6-Mar-07 5:53

shiraztk

6-Mar-07 5:53

Those were old days......felt we will find everything on the net

The Best Religion is Science.
Once you understand it, you will know God.

netsh mfc -- please help me

Hamid_RT6-Mar-07 7:04

Hamid_RT

6-Mar-07 7:04

See www.Cplusplus.com

WhiteSky

deeps_cute6-Mar-07 4:20

deeps_cute

6-Mar-07 4:20

hi i tried to set the ip address using netsh as
UpdateData(TRUE);
CString para3 ;
para3.Format(( "Local Area Connection"));
CString ipadd;
ipadd.Format(_T("%s"),m_IpAddress);
HINSTANCE hInt;
CString command;
command.Format(("/cnetsh interface ip set address name=%s static %s %s %s 1"),para3,m_pIpadd,m_subnet,m_gateway);

system(command);
the values are from editboxes.is anything wrong with this code. this havent set the ip.

Arise Awake Stop Not Till ur Goal is Reached.

Re: netsh mfc -- please help me

David Crow6-Mar-07 5:08

David Crow

6-Mar-07 5:08

deeps_cute wrote:
CString para3 ;
para3.Format(( "Local Area Connection"));

It is not necessary to call Format(). Just assign the string literal directly.

deeps_cute wrote:
CString ipadd;
ipadd.Format(_T("%s"),m_IpAddress);

ipadd is not used. Is that intentional?

deeps_cute wrote:
system(command);

Is the value of command correct at this point?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: netsh mfc -- please help me

deeps_cute6-Mar-07 5:26

deeps_cute

6-Mar-07 5:26

yes i assigned the value of m_ipadd directly. the vale returned from command is correct.
UpdateData(TRUE);
char para2[1024];
strcpy (para2, "\"Local Area Connection\" ");
CString command;
command.Format(_T("netsh interface ip set address name=%s static %s %s %s 1"),para3,m_IpAddress,m_subnet,m_gateway);

system(command);

Arise Awake Stop Not Till ur Goal is Reached.

Re: netsh mfc -- please help me [modified]

Ravi Bhavnani6-Mar-07 5:45

Re: netsh mfc -- ok but (anyone please try to help me)

6-Mar-07 5:45

deeps_cute wrote:
the vale returned from command is correct.

The value returned by system() is an integer which is zero or one of E2BIG, ENOENT, ENOEXEC or ENOMEM. I suspect you meant to capture the text output of the call. If that's the case, you may want to see ~~this~~[^] article.

Corrected article link[^]

/ravi

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deeps_cute6-Mar-07 5:53

deeps_cute

6-Mar-07 5:53

thats nice but whats the case when we use shellexecute instead of system("")

-- modified at 11:59 Tuesday 6th March, 2007

Arise Awake Stop Not Till ur Goal is Reached.

Re: netsh mfc -- ok but (anyone please try to help me)

Ravi Bhavnani6-Mar-07 6:08

Re: netsh mfc -- ok but (anyone please try to help me)

6-Mar-07 6:08

deeps_cute wrote:
thats nice but whats the case when we use shellexecute instead of system("")

As MSDN says, system() passes a command to the command interpreter, which executes the string as an operating-system command while ShellExecute() performs an operation on a file.

/ravi

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Ravi Bhavnani6-Mar-07 6:22