C / C++ / MFC

Christian Graus7-Apr-05 15:14

7-Apr-05 15:14

mpapeo wrote:
char iobuf[80];
int choice;
int i,len,valid;

Always give your variables values when you create them. Unless this is a C program ( this is all C code, so I guess it could be ), you shouldn't declare all your variables at the top, but just before you use them.

If you're always creating the process, you'd need to keep a handle to it to suspend and resume anyhow, right ? So declare that, make it NULL, and check for NULL before showing the other options. Of course, all of this needs to be in an endless loop then, so it shows more than once. Unless you want to run it every time. Then you need to try and find the handle first.

Christian

I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer

Anonymous7-Apr-05 15:35

Anonymous

7-Apr-05 15:35

This is what i have,
<code>
#include <windows.h>
#include <stdio.h>
#include <windef.h>
#include <winbase.h>
#include <imagehlp.h>
#include <stdlib.h>
#include <ctype.h>
typedef struct _iobuf FILE;
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>

int menu(void)
{
char iobuf[80];
int choice;
int i,len,valid;
printf ("\n");
printf ("*****************************************\n");
printf ("*\t\t\t\t\t*\n*\tPROCESS CREATION \t\t*\n");
printf ("=========================================");
printf ("\n=\t 1: Create a process \t\t=");
printf ("\n=\t 2: Suspend the process\t\t=");
printf ("\n=\t 3: Resume process \t=");
printf ("\n=\t 4: Shutdown the process \t=");
printf ("\n=========================================\n");
printf ("\n");

printf("\nEnter choice (1-4): ");
valid = 0;
while( valid == 0)
{
fgets(iobuf,sizeof(iobuf),stdin);
// remove '\n'
len = strlen(iobuf)-1;
iobuf[len] = 0;
// validate data
valid = 1; // assume valid input
for(i = 0; i < len; i++)
{
if( !isdigit(iobuf[i]))
{
printf("\nPlese enter numeric digits only (1-4)\n");
valid = 0;
}
}
}
choice = atoi(iobuf);

//scanf("%d", &choice);
return choice;
}
int main(int argc, char **argv)
{
PROCESS_INFORMATION pi; /* filled in by CreateProcess */
STARTUPINFO si; /* startup info for the new process*/
HANDLE hProcess;
DWORD lpAddr = 0;
TCHAR lpApplicationName[_MAX_PATH]="";
int result;
char ans [4]="";
int choice;
while((choice = menu())!=5)//int choice;
{
switch (choice)
{
case 1:
GetStartupInfo(&si);
lpAddr = 0;
ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );
printf("Enter process you want to execute: ",lpApplicationName);
scanf ("%s",lpApplicationName);
printf("Process %d reporting for creation\n",GetCurrentProcessId());//print out our process ID

CreateProcess(NULL, /* lpApplicationName */
lpApplicationName, /* lpCommandLine assumes to use curent process directory*/
NULL, /* lpsaProcess */
NULL, /* lpsaThread */
FALSE, /* bInheritHandles */
CREATE_NEW_CONSOLE, /* dwCreationFlags */
NULL, /* lpEnvironment */
NULL, /* lpCurDir */
&si, /* lpStartupInfo */
&pi /* lpProcInfo */
);
hProcess = pi.hProcess;
printf("New Process ID: %d ",pi.dwProcessId);
printf("has started \n");
break;
case 2:
SuspendThread(pi.hProcess);// identifies thread to suspend
break;
case 3:
ResumeThread(pi.hProcess);
break;
case 4:
printf("\nYou are about to terminate a running process, do you want to continue ( y or n) ");
scanf ("%s",ans);

result = strcmp(ans,"y");

if (result==0)
{
TerminateProcess(pi.hProcess, 0);//identifies the process to terminate
GetLastError();
}
break;

default:
printf("\nInvalid choice: ");
}
}
return (0);
}

</code>

Christian Graus7-Apr-05 15:39

7-Apr-05 15:39

OK, so it IS a C program ? ( Not C++ )

If you want to put the menu into a seperate function ( not a bad idea ), then you need to pass in the hProcess variable, so you know if there's a process going or not.

Christian

I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer

mpapeo7-Apr-05 15:50

7-Apr-05 15:50

You mean passing it as an input?

-oam-

Christian Graus7-Apr-05 15:52

7-Apr-05 15:52

Yes, so you can check if it's NULL, and alter your options accordingly.

Christian

I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer

mpapeo8-Apr-05 1:48

8-Apr-05 1:48

I stil have the program crushing, i might be missing something

<br />
printf("\nEnter choice (1-4): ");<br />
   valid = 0;<br />
   while( valid == 0)<br />
   {<br />
     fgets(iobuf,sizeof(iobuf),stdin);<br />
     // remove '\n' <br />
     len = strlen(iobuf)-1;<br />
     iobuf[len] = 0;<br />
     // validate data<br />
     valid = 1; // assume valid input<br />
     for(i = 0; i < len; i++)<br />
     {<br />
         if( !isdigit(iobuf[i]))<br />
         {<br />
           printf("\nPlese enter numeric digits only (1-4)\n");<br />
           valid = 0;<br />
         }<br />
      }<br />
   }<br />
   hProcess = atoi(iobuf);<br />
 <br />
	<br />
   //scanf("%d", &choice);<br />
	return hProcess;//choice; <br />
 }<br />

-oam-

David Crow8-Apr-05 5:29

David Crow

8-Apr-05 5:29

mpapeo wrote:
I stil have the program crushing, i might be missing something

While it is a bad design, this code is syntactically correct. The "crush" your program is experiencing is in some other code. Why not single-step through the code until you get to the statement(s) in error?

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

LighthouseJ7-Apr-05 15:48

LighthouseJ

7-Apr-05 15:48

Why comment out the scanf?

try this ...

<br />
int choice;<br />
while (true) {<br />
printf ("\n");<br />
printf ("*****************************************\n");<br />
printf ("*\t\t\t\t\t*\n*\tPROCESS CREATION \t\t*\n");<br />
printf ("=========================================");<br />
printf ("\n=\t 1: Create a process \t\t=");<br />
printf ("\n=\t 2: Suspend the process\t\t=");<br />
printf ("\n=\t 3: Resume process \t=");<br />
printf ("\n=\t 4: Shutdown the process \t=");<br />
printf ("\n=========================================\n");<br />
printf ("\n");<br />
printf ("\nEnter choice (1-4): ");<br />
<br />
scanf("%u", &choice);<br />
<br />
switch (choice) {<br />
case 1:<br />
case 2:<br />
case 3:<br />
case 4: return choice; break;<br />
default: printf("\nPlese enter numeric digits only (1-4)\n"); break;<br />
}<br />
}<br />

Now the while(true) { } loop is used, it should be used sparingly. That loop will keep iterating through the menu indefinitely. The only way to get out is to choose one of the valid options. The switch will catch options 1 through 4 and return them, anything else will show the error. The switch-case statement is very useful in this case because you can run code for each option and handle all other cases. If you choose say option 2, it'll enter at case 2 but then keep going through case 3 and then it will reach case 4, return the number 2 (stored in choice) and then break; (it's really unreachable code because the function will end at the return statement.

mpapeo7-Apr-05 15:59

7-Apr-05 15:59

let me try chris method first

-oam-
seems as that im having slight problems

why does it takes default now after pass the hProcess

mpapeo7-Apr-05 16:21

emulating commands in c++

7-Apr-05 16:21

I still have the program crashing

-oam-

Jeb997-Apr-05 14:32

Jeb99

7-Apr-05 14:32

Hi, I was wondering if anyone knows how to emulate assembly commands in c++.
Like for instance, there is the command LDA# which is load directly into the accumulator at whatever the address specified is. The only problem is i have no idea how to do this in c++. So what i need help with is taking the LDA# and recreating it in c++(or any other command for that matter). If anyone knows how to do this could you please help me out.

Thanks

Re: emulating commands in c++

Christian Graus7-Apr-05 15:14

Where to download a crystal report tool from?

7-Apr-05 15:14

You can actually embed assembler in your C++ application.

Christian

I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer

awasthy7-Apr-05 13:52

awasthy

7-Apr-05 13:52

I need to attach crystal reports to my project. Where can I get the tool from?

awasthy

Any work worth doing is worth doing well.

Re: Where to download a crystal report tool from?

liquid_8-Apr-05 7:13

liquid_

8-Apr-05 7:13

I'm afraid that you should have to buy it. I remember an older version of Crystal Reports was added to MS VC 4.0 CD for free.

Unhandled Exception.

blinkered7-Apr-05 11:28

blinkered

7-Apr-05 11:28

A Workspace that runs perfectly on Windows XP at work, is producing an exception on XP Home (at home!!). It is in the InitInstance of the app attempting to execute ProcessShellCommand(CmdInfo). Its giving an exception (0XE06D7363). Have trawled the web - checked and double checked all my project setting, all to no avail. Am I being stupid and missing something obvious??????

Re: Unhandled Exception.

Shaileshhex22-Jul-08 1:50

Shaileshhex

22-Jul-08 1:50

Hey,
Me too facing the same problem... in ProcessShellCommand as u faced... did u get any soln on this .. plz let me know

regards
Smile | :)

flat toolbar in WinXP

BaShOr7-Apr-05 10:27

BaShOr

7-Apr-05 10:27

Hello,

I'm trying to create a menu (actually it is a modified toolbar) that looks like the IE or Mozilla menu bar.
I've read this article: http://www.codeproject.com/docking/sizablerebar.asp

Now I'm having problems in creating such a flat toolbar in WinXP using the WinAPI.
The final result should look like this:
http://user96.kundenserver9hsgbr.de/menu1.gif

And this is my current toolbar:
http://user96.kundenserver9hsgbr.de/menu2.gif

For the moment I am not interested in the background color (this comes from the rebar control I think)
I'm just interested in the hover effect which looks quite different. What should I change?
I'm using the TBSTYLE_FLAT style but I do no get the expected results.

Re: flat toolbar in WinXP

Mark Salsbery15-Nov-06 11:32

Mark Salsbery

15-Nov-06 11:32

Are you talking about hot tracking?

Check out the TB_SETHOTIMAGELIST message.

You need to use image lists for button images and create a list used for "hot" items.

Help with a school project

diegomiami7-Apr-05 10:02

diegomiami

7-Apr-05 10:02

Here is a program i need to do.. i would like some help..please contact me

here it is:

Write a program to read from an input file the salesperson’s id and their quarterly sales for the year. Compute the total yearly sales, avg sales and commission for each salesperson. You will also compute the company’s total sales. Create a report in this following tabular format:

-----------------Annual Sales Report ------------------

ID QT1 QT2 QT3 QT4 TOTAL AVG COMM

12345 $1,892.00 $4,000.00 $435.00 $1000.00 $7327.00 $1831.75 $2198.10

Total Sales for the Company: //(sum of all the salesperson’s yearly sales)

Requirements:

1. Read from the input file (salesperson_yrsales.dat) the salesperson’s record in the following format: Remember this file will contain several records.

salesperson’s ID#Qsales1#Qsales2#Qsales3#Qsales4

2. Create a structure with the following members.

Salesperson’s ID // salesperson ID number (int),

Qsales1 - // sales for quarter 1 (double)
Qsales2 - // sales for quarter 2 (double)
Qsales3 - // sales for quarter 3 (double)
Qsales4 - // sales for quarter 4 (double)
Yearly sales - // total sales for the year (double)
Avg sales - // the average sales for the year (double)
commission - // sales commission (double)

3. Compute the total yearly sales, average sales and commission amount (30%) for each salesperson.

4. Print a sales report as specified previously to display the sales information. Remember to use padright and padleft.

5. Use the following functions in your program:

a. readFile : This function reads the salesperson’s ID and quarterly sales from the input file and stores the information in the record structure.

b. totalSaleByPerson: This function computes each salesperson’s yearly sales amount,

c. avgSaleByPerson: This function computes each salesperson’s , average sales for the year.

d. commByPerson: This function computes each salesperson’s commission for the year.

e. totalSales: This function computes the company’s total sales by adding yearly sales amount from each salesperson.

f. printReport: This function prints the annual report in the specified format.

I would apreciate someone helping me. Big Grin | :-D

Ravi Bhavnani7-Apr-05 11:33

Ravi Bhavnani

7-Apr-05 11:33

diegomiami wrote:
i would like some help

Specifically, what kind of help? You'll likely get a useful response if you have a problem with a specific part of your code.

/ravi

My new year's resolution: 2048 x 1536
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diegomiami7-Apr-05 11:51

diegomiami

7-Apr-05 11:51

Im having problems loading the file..im not really sure whats the code for that.

Ravi Bhavnani7-Apr-05 11:54

Ravi Bhavnani

7-Apr-05 11:54

Here's[^] a tutorial on reading a text file. It should get you started.

/ravi

My new year's resolution: 2048 x 1536
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