C / C++ / MFC

santhoshv8410-Aug-08 20:49

santhoshv84

10-Aug-08 20:49

Hi,

I included #include<afxtempl.h> , still its not working..

Thanks and Regards.
SANTHOSH V

santhoshv8410-Aug-08 22:04

santhoshv84

10-Aug-08 22:04

Hi,

Yes i did as you told. I included both the headers

Still its not working..

Thanks and Regards.
SANTHOSH V

noxmortis12-Aug-08 5:09

noxmortis

12-Aug-08 5:09

To fix by checking the following possible causes:

1. File does not exist.

2. File, subdirectory, or disk is read-only.

3. No access permission for file or directory.

4. Not enough file handles. Close some applications and recompile.

5. The INCLUDE environment variable is set incorrectly.

This is my suggestion. For the Visual Studio please look
under "Tools - Options - Projects an Solutions --> VC++ Directories" for
the include files directories that the Visual Studio uses to search for include files.
There you can add this directory.

6. An #include directive uses double quotation marks around a path specification, which causes the standard directories to be skipped.

7. You did not specify /clr and your program uses CLR constructs.

8. You attempted to compile a single file in the project without first compiling stdafx.cpp. Before you can compile a single file in the project, you need to compile stdafx.cpp. In the case of the /analyze (Enterprise Code Analysis) compiler option, you will need to use the same /analyze setting for stdafx.cpp that you use for the .cpp file.

Stephen Hewitt10-Aug-08 21:36

Stephen Hewitt

10-Aug-08 21:36

You shouldn't include this file, it's internal to MFC.

Steve

venera_soft11-Aug-08 0:14

venera_soft

11-Aug-08 0:14

Hi!
I also had this problem. Confused | :confused:

Just try to include the file using double quotation marks around the path specification:
use #include "afximpl.h" instead of #include <afximpl.h>.

How to open an .trp file using thread?

David Crow11-Aug-08 4:00

David Crow

11-Aug-08 4:00

venera_soft wrote:
Just try to include the file using double quotation marks around the path specification:
use #include "afximpl.h" instead of #include <afximpl.h>.

Why? That instructs the preprocessor to look for the file in the same directory as the #include statement, which it obviously is not going to find.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

AnithaSubramani10-Aug-08 20:11

AnithaSubramani

10-Aug-08 20:11

Dear All,

My project requirement is VC++ application need to open an .trp file using FileReading method.I tried it works proper.But i need to open a .trp file using Thead concept...

It will be much helpful to me to give some advice on this..

Thank you very much,

Yours,
Anitha

_AnsHUMAN_ 10-Aug-08 20:22

_AnsHUMAN_

10-Aug-08 20:22

Move the FileReading method into the your thread procedure and do things over there.
Since you can open the .trp file it should not be a problem to achieve this from the thread.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

AnithaSubramani10-Aug-08 20:49

AnithaSubramani

10-Aug-08 20:49

Thank you for your kind reply.

If I process the file reading in a thread, the thread starts its separate execution. I need some of the values from the file to proceed further. So please tell me, is it possible to suspend the main thread till the worker thread (File reading method) is completed. Please advice.

SandipG 10-Aug-08 21:18

SandipG

10-Aug-08 21:18

AnithaSubramani wrote:
suspend the main thread till the worker thread (File reading method) is completed

If you want to suspend the main thread what is the advantage of using another thread?

Regards,
Sandip.

Create registration dialog in SDI mfc application.

_AnsHUMAN_ 10-Aug-08 21:33

_AnsHUMAN_

10-Aug-08 21:33

it won't be a good idea cause threads are generally used for parallel processing. why start a thread if you want the main thread to get suspended?

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Le@rner10-Aug-08 19:52

Le@rner

10-Aug-08 19:52

Hi all,

I want to use registration dialog with limit of 30 days.
So i m taking help of this article

http://www.codeproject.com/KB/dialog/regdialog.aspx[^]

it working fine if i increase the date.But when i decrese the date or set back date than also it is count number of days.

i just want it is working only for next date not for back date.

Please help me for this.

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: Create registration dialog in SDI mfc application.

_AnsHUMAN_ 10-Aug-08 20:04

_AnsHUMAN_

10-Aug-08 20:04

didn't look at the article, but why don't you compare the dates before saving them. On comparison if the selected date is prior to the current date, pop a message box and reset the date to the current date otherwise you can let the user proceed.
I think I got ur query correctly.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Create registration dialog in SDI mfc application.

Rajesh R Subramanian10-Aug-08 20:11

Rajesh R Subramanian

10-Aug-08 20:11

Will CExpire[^] be of help to you?

Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

run threads after a fix interval , this interval can be different for different threads

anilaabc10-Aug-08 19:15

Re: run threads after a fix interval , this interval can be different for different threads

10-Aug-08 19:15

I need to do 3-4 tasks after a fix time interval . the tasks are dependent on each other , i need to do all in parallel.currently I m doing these in separe threads (running 3-4 threads).problem is I m using sleep method in each thread to repeat task after a fix interval .but sleep is not guaranteed to sleeep for exact interval. how can I do parallel tasks after exact interval .

Mark Salsbery10-Aug-08 20:55

Mark Salsbery

10-Aug-08 20:55

You could use an auto-reset event for each thread that the
corresponding thread waits on until it's signaled by a timer.

// pseudocode

// The timer could be a simple SetTimer() timer or a multimedia timer
// depending on the timer accuracy you need

OnTimer 
{
   for each threadstartevent in arrayofthreadstartevents
      SetEvent(threadstartevent)
}

threadproc
{
   while (false == threadshouldterminate)
   {
      wait for event
      do some processing
   }
}

You could instead use a single manual-reset event to release all the waiting threads
at "the same time" but then you need some scheme to get the last thread that
completes its task to reset the event. The other threads would need to wait
for the last thread to complete.

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

Admin privillage in limited account

pooja_friends10-Aug-08 19:14

pooja_friends

10-Aug-08 19:14

I have wrote an application which edit system file.when i run my application in limited user account it shows access denied error.i need to give admin privillage for limited user to edit that file . how i do this in vc++.

help me plea Smile | :)

Linking C library in C++ application

Yashusid10-Aug-08 18:57

Yashusid

10-Aug-08 18:57

I am linking a C library in C++ application.
i have declared function in my c.h
#ifdef __cplusplus

extern "C" {

#endif

int fun(int,int);

#ifdef __cplusplus

}

#endif

created my c.lib

now in my capp.cpp i have included this c.h as
#include "c.h"

and i have linked the c.lib and calling this fun function in my cpp application as

int x=fun(2,3); directly ...

would this work ??

how can i be sure that the library is linked propery ??

Re: Linking C library in C++ application

Stephen Hewitt10-Aug-08 21:37

Stephen Hewitt

10-Aug-08 21:37

Should work. Sounds like you've done everything correctly.

Steve

allocating and deallocating memory

anilaabc10-Aug-08 18:45

10-Aug-08 18:45

I m allocating memory using GlobalAlloc(GMEM_FIXED|GMEM_DDESHARE,)method
while deallocate using GlobalUnlock(),GlobalFree()but its not freeing memory what method should i use to allocate and deallocate

Randor 10-Aug-08 18:53

Randor

10-Aug-08 18:53

What is the return value of GlobalFree()? If it returns anything other than NULL you need to call GetLastError().

Best Wishes,
-David Delaune

anilaabc10-Aug-08 19:09

10-Aug-08 19:09

please explain how getlasterror can help me by code

Randor 10-Aug-08 19:21

Randor

10-Aug-08 19:21

GlobalFree()[^] will return NULL if it succeeds. If GlobalFree()[^] fails it will return a positive HGLOBAL value which is essentialy a handle to the memory object.

If GlobalFree is returning any value other than NULL it is indeed failing. Calling GetLastError()[^] will tell you why it is failing.

So I ask you again:
What value is the GlobalFree() returning?

Best Wishes,
-David Delaune

anilaabc10-Aug-08 19:38