Re: Dll Subsystem query - C / C++ / MFC Discussion Boards

Diglu10-Jul-06 0:01

10-Jul-06 0:01

To use Cmutex Object , Any headerfile have to include ?
I have not include Header file .
I'm geating error :
----------------------------------------------------------------------
lets : CMutex g_m;
- - - - - - - - - - - - - - - - - - - - - -
E:\Project-MFC\UiThread1\UiThread1Dlg.cpp(17) : error C2146: syntax error : missing ';' before identifier 'g_m'
E:\Project-MFC\UiThread1\UiThread1Dlg.cpp(17) : error C2501: 'CMutex' : missing storage-class or type specifiers
E:\Project-MFC\UiThread1\UiThread1Dlg.cpp(17) : fatal error C1004: unexpected end of file found

------------------------------------------------------------------------
Thanks to all. Smile | :)

-- modified at 6:02 Monday 10th July, 2006

Re: About CMutex

ovidiucucu10-Jul-06 0:15

ovidiucucu

10-Jul-06 0:15

#include <afxmt.h>

Ovidiu Cucu
Microsoft MVP - Visual C++

Re: About CMutex

Diglu10-Jul-06 0:20

Diglu

10-Jul-06 0:20

Yes it is working. Thanks a lot. Smile | :)

Create timer for 1sec and more

thathvamsi9-Jul-06 23:19

thathvamsi

9-Jul-06 23:19

Hey all,
In my application, I need to turn on the timer once the Pc sends a packet to the serial device. the serial device should respond immediately to teh PC's request. The Pc should get response from the serial device within "m" secs. the Pc will wait for response from serial device and check for the timer. if elapsed, will resend the packet again.

in brief,

On_send(wparam,lparam)
{
//packet sent to serial device
//timer has to be triggered on here
}

On_rx(wparam,lparam)
{
//checks for packet received
//if no packet received from serial device, then
{
//check for timer
while(timer has elapsed)
{
//resend the packet to MPU
post_message(WM_RESEND,null)
}
}
}

On_resend(wparam,lparam)
{
//send same packet to PC
here, I have to restart the timer again to see if the
serial device responded within particular time as in On_rx.
}

this is the idea i have in mind. but i dont know how to implement. Can I use WM_TIMER...? I know there are various timers like multimedai timers, etc., But dont know which one suits my need as I am still in the learning curve of MFC.

I would appreciate if anyone can help me with this.
Thanks in advance.

Re: Create timer for 1sec and more

ThatsAlok10-Jul-06 0:18

ThatsAlok

10-Jul-06 0:18

WM_TIMER would be best bet.. if you are beginner in MFC

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: Create timer for 1sec and more

David Crow10-Jul-06 3:17

David Crow

10-Jul-06 3:17

Check out SetTimer().

"The largest fire starts but with the smallest spark." - David Crow

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

Dll Subsystem query

ComplexLifeForm9-Jul-06 23:14

ComplexLifeForm

9-Jul-06 23:14

Hi All,

I have a typical windows application that requires many dll's to work properly. One of the dll's generated during build process is actually a dummy dll (functions simply returns). This dll is supposed to be replaced by a third party dll with same function signatures.

Now the issue is

1. The Dll generated by the build process is a Win32 console dll, where as the third party dll I have is win32 GUI subsystem.

2. Even though the subsystems are different but actually the dll has simple C methods, nowhere using GUI stuff at all, so by simply replacing the dummy dll with the 3rd party dll should the things work.

Thanks and Regards.

Re: Dll Subsystem query

Dave Kerr10-Jul-06 0:12

Dave Kerr

10-Jul-06 0:12

As long as the functions in the dummy dll are declared in exactly the same way as the third party dll, then replacing the two dlls will work fine.

Dave Kerr
codechamber@hotmail.com
http://www.codechamber.com

websites

ashish dogra9-Jul-06 23:09

ashish dogra

9-Jul-06 23:09

plz tell me about the websites which help me in finding code and other problems in c++,vc++
thanks

Ashish Dogra
MCA
Noida

Re: websites

ThatsAlok9-Jul-06 23:19

ThatsAlok

9-Jul-06 23:19

ashish dogra wrote:
plz tell me about the websites which help me in finding code and other problems in c++,vc++

you are already on that site!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: websites

ashish dogra9-Jul-06 23:23

ashish dogra

9-Jul-06 23:23

thanks for your reply sir
but i want to know much more
plz tell me
thanks

Ashish Dogra
MCA
Noida

Re: websites

ThatsAlok10-Jul-06 0:17

ThatsAlok

10-Jul-06 0:17

ashish dogra wrote:
thanks for your reply sir
but i want to know much more

PlanetSourceCode for Beginner level programmer..
[ot] so where do your work in Noida!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: websites

ashish dogra10-Jul-06 0:25

ashish dogra

10-Jul-06 0:25

i am not working yet but trying to find job
thats why i wnat to know about c++,vc++ helps

Ashish Dogra
MCA
Noida

Tooltip text

sir_moreno9-Jul-06 23:00

sir_moreno

9-Jul-06 23:00

How can I change the tooltip text for a Slider?

Moreno

Re: Tooltip text

FarPointer9-Jul-06 23:26

FarPointer

9-Jul-06 23:26

you can set the tooltip for the slidecontrol using
void SetToolTips( CToolTipCtrl* pWndTip );
Once set u can change the text using:-
CToolTipCtrl::UpdateTipText

Regards,
FarPointer
Blog:FARPOINTER

Re: Tooltip text

sir_moreno9-Jul-06 23:57

sir_moreno

9-Jul-06 23:57

What is LPCTSTR lpszText? how can i set it?
and how can i found out the:
ID of the string resource that contains the text for the tool
(I'm trying to reset the tooltip text for a slider)
thanks

Moreno

reversing string function

progman9-Jul-06 22:48

progman

9-Jul-06 22:48

Help me please i need to write function that reversing string, based on description :

str * revers(char * source)

Thanks in advance !

Re: reversing string function

Naveen9-Jul-06 22:55

Naveen

9-Jul-06 22:55

there's already a function

_tcsrev

nave

Re: reversing string function

progman9-Jul-06 23:02

progman

9-Jul-06 23:02

Thanks but i need to Write function , do not use exsting one ..

Re: reversing string function [modified]

Naveen9-Jul-06 23:10

Naveen

9-Jul-06 23:10

this will do....

char* revers(char * source)
{

int nCount = strlen( source);
char *pRev = new char[ nCount + 1 ];
for( int nIdx = 0;nIdx < nCount + 1;nIdx++)
{
pRev[ nIdx ] = source[ nCount - 1 - nIdx ];

}
return pRev;

}
nave

Re: reversing string function

Rory Solley9-Jul-06 23:32

Rory Solley

9-Jul-06 23:32

Assuming you're using the MS compiler, why not just view the CRT library source?

Re: reversing string function

earl10-Jul-06 4:46

earl

10-Jul-06 4:46

Or even better yet, why not do your homework yourself?

earl

Re: reversing string function

Rilhas17-Jul-06 14:05

Rilhas

17-Jul-06 14:05

I would advise you to do that (your own homework yourself). You see, the code Naveen R provided contains some potentially hazardous "features", is highly sub-optimal, and will surely get you in big trouble when you try to explain it to your teacher.

Here is my contribution:

char* reverse_string(char* s) {
char* p=0;
while(s) *p=*s;
return p;
}

If you can't get this code to reverse the string this may mean you should study harder Smile | :)

To get a popup menu when right clicking on command button [modified]

Vinod Moorkkan9-Jul-06 22:45

Vinod Moorkkan

9-Jul-06 22:45

Hi all,
I am working with vc++(6).Now i am in trouble,i needed to get a popup menu when i right click on command button.I got pop up menu when i right click on dialog using WM_RBUTTONDOWN .But it does not work on command button which is on the same dialoge.Please help me
Thanks
Vinod Moorkkan

-- modified at 4:45 Monday 10th July, 2006

Re: To get a popup menu when right clicking on command button

Naveen9-Jul-06 22:57

Naveen

9-Jul-06 22:57

overide the PreTranslateMessage() funtion in the dialog and handle the WM_RBUTTONDOWN message there.

nave

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