Re: looping a function - C / C++ / MFC Discussion Boards

Johan Pretorius28-Dec-06 5:16

28-Dec-06 5:16

If it does not need to be time based then

while (!g_done)
{
//do what ever
}

and when your app receives the WM_CLOSE message set g_done to true.

Artificial Intelligence is no match for Natural Stupidity

No one can understand the truth until he drinks of coffee's frothy goodness. ~Sheik Abd-al-Kadir

I can't always be wrong ... or can I?

Re: looping a function

Kharfax28-Dec-06 5:22

Kharfax

28-Dec-06 5:22

mate, that will hang the app, to do that he will need to check for new messages in the queue and dispatch them.

Re: looping a function

Johan Pretorius28-Dec-06 5:28

Johan Pretorius

28-Dec-06 5:28

i was assuming he is checking for messages. Smile | :)

Artificial Intelligence is no match for Natural Stupidity

No one can understand the truth until he drinks of coffee's frothy goodness. ~Sheik Abd-al-Kadir

I can't always be wrong ... or can I?

Re: looping a function

Johan Pretorius28-Dec-06 5:26

Johan Pretorius

28-Dec-06 5:26

if it needs to be time based.

//in main function
static int timer_id = SetTimer(NULL,11,30000/*30sec* 1000millisecounds*/,NULL);

and your app should recive an WM_TIMER event every 30 secounds with wParam as the event number (11 in this case). There you can run your code.

When your app recives WM_CLOSE use

//this will stop your timer
KillTimer(timer_id);

Artificial Intelligence is no match for Natural Stupidity

No one can understand the truth until he drinks of coffee's frothy goodness. ~Sheik Abd-al-Kadir

I can't always be wrong ... or can I?

Re: looping a function

Johan Pretorius28-Dec-06 5:30

Johan Pretorius

28-Dec-06 5:30

or you can replace the last parameter with a pointer to a TIMERPROC function. This will then execute the function every 30sec and you will not need to check for messages. (assuming your app is still open)

Artificial Intelligence is no match for Natural Stupidity

No one can understand the truth until he drinks of coffee's frothy goodness. ~Sheik Abd-al-Kadir

I can't always be wrong ... or can I?

Re: looping a function

Kharfax28-Dec-06 5:32

Kharfax

28-Dec-06 5:32

This one is the best solution in my opinion

Re: looping a function

dellthinker28-Dec-06 6:55

dellthinker

28-Dec-06 6:55

Wow, i didnt think i'd get these many replies. Thanx for the suggestions everyone, however i have a question. Is there a way i can loop the FindWindow function?

Here's a sample code:

<br />
#include <windows.h><br />
#include <stdio.h><br />
#include <fstream><br />
using namespace std;<br />
int main()<br />
{<br />
	while(1){<br />
		sleep(6);<br />
		short ie;<br />
		for(ie=0;ie<=200;ie++){<br />
			HWND handle=FindWindow("IEFrame",0);<br />
			HWND handle2=FindWindowEx(handle, 0, "WorkerW",0);<br />
			HWND handle3=FindWindowEx(handle2, 0, "ReBarWindow32", 0);<br />
			HWND handle4=FindWindowEx(handle3,0,"Address Band Root",0);<br />
			HWND handle5=FindWindowEx(handle4,0,"ComboBoxEx32",0);<br />
			HWND handle6=FindWindowEx(handle5,0,"ComboBox",0);<br />
			HWND handle7=FindWindowEx(handle6,0,"Edit",0);<br />
			char addy[MAX_PATH];<br />
			SendMessage(handle7,WM_GETTEXT,MAX_PATH,(LPARAM)(LPCSTR)addy);<br />
			if(strstr(addy,"http:")!=NULL){<br />
				ofstream out;<br />
				out.open("http.txt",ios::app);<br />
				out << addy << endl;<br />
				out.close();<br />
			}<br />
				else if(strstr(addy,"https:")!=NULL){<br />
					ofstream in;<br />
					in.open("https.txt",ios::app);<br />
					in << addy << endl;<br />
					in.close();<br />
				}<br />
		}<br />
	}	<br />
		<br />
	return 0;<br />
}<br />

This will keep looping but not the way that i want. It returns the address like 3000 times when all i want is once. The idea is to keep the program running and keep finding the window and return what it finds only once. And then if its something different log that too etc. Any suggestions?

Re: looping a function

David Crow28-Dec-06 6:48

David Crow

28-Dec-06 6:48

Is this a GUI or console application?

dellthinker wrote:
Now anyone can clearly see that this function loops "Test looping" 10 times.

Actually it loops 11 times! Wink | ;)

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

Re: looping a function

dellthinker28-Dec-06 6:57

dellthinker

28-Dec-06 6:57

Wow, i didnt think i'd get these many replies. Thanx for the suggestions everyone, however i have a question. Is there a way i can loop the FindWindow function?

Here's a sample code:

<br />
#include <windows.h><br />
#include <stdio.h><br />
#include <fstream><br />
using namespace std;<br />
int main()<br />
{<br />
	while(1){<br />
		sleep(6);<br />
		short ie;<br />
		for(ie=0;ie<=200;ie++){<br />
			HWND handle=FindWindow("IEFrame",0);<br />
			HWND handle2=FindWindowEx(handle, 0, "WorkerW",0);<br />
			HWND handle3=FindWindowEx(handle2, 0, "ReBarWindow32", 0);<br />
			HWND handle4=FindWindowEx(handle3,0,"Address Band Root",0);<br />
			HWND handle5=FindWindowEx(handle4,0,"ComboBoxEx32",0);<br />
			HWND handle6=FindWindowEx(handle5,0,"ComboBox",0);<br />
			HWND handle7=FindWindowEx(handle6,0,"Edit",0);<br />
			char addy[MAX_PATH];<br />
			SendMessage(handle7,WM_GETTEXT,MAX_PATH,(LPARAM)(LPCSTR)addy);<br />
			if(strstr(addy,"http:")!=NULL){<br />
				ofstream out;<br />
				out.open("http.txt",ios::app);<br />
				out << addy << endl;<br />
				out.close();<br />
			}<br />
				else if(strstr(addy,"https:")!=NULL){<br />
					ofstream in;<br />
					in.open("https.txt",ios::app);<br />
					in << addy << endl;<br />
					in.close();<br />
				}<br />
		}<br />
	}	<br />
		<br />
	return 0;<br />
}<br />

storing value in buf

ikbahrian28-Dec-06 4:23

ikbahrian

28-Dec-06 4:23

could anyone please let me know when i use this code and print the buf it is not giving the values which i stored in. D'Oh! | :doh:

missing some values...

len=0;
unsigned char *buf;
buf=(unsigned char *)malloc(12);

*buf=0x01
*(buf+1)=0x02
*(buf+1)=0x03
*(buf+1)=0x04
len+=4;

for(k=0,k

Re: storing value in buf

C^hris L^osinger28-Dec-06 4:32

C^hris L^osinger

28-Dec-06 4:32

ikbahrian wrote:
*buf=0x01
*(buf+1)=0x02
*(buf+1)=0x03
*(buf+1)=0x04

shouldn't that be:

*buf=0x01
*(buf+1)=0x02
*(buf+2)=0x03
*(buf+3)=0x04

?

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Re: storing value in buf

Reagan Conservative28-Dec-06 4:33

Reagan Conservative

28-Dec-06 4:33

ikbahrian wrote:

*buf=0x01
*(buf+1)=0x02
*(buf+1)=0x03
*(buf+1)=0x04

Should be:

*buf=0x01
*(buf+1)=0x02
*(buf+2)=0x03
*(buf+3)=0x04

John P.

Re: storing value in buf

ikbahrian28-Dec-06 4:44

ikbahrian

28-Dec-06 4:44

thx john P.

Re: storing value in buf

Gary R. Wheeler28-Dec-06 5:12

Gary R. Wheeler

28-Dec-06 5:12

One final note: you should use

printf("0x%.2x",(unsigned)buf[k]);

since the %x format-specifier expects an int-sized value in the argument list.

Software Zen: delete this;

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Re: storing value in buf

Sumesh V.V28-Dec-06 21:15

Sumesh V.V

28-Dec-06 21:15

unsigned char *buf = NULL;
buf = (unsigned char *) malloc( 12 );
if( buf )
{
*buf=0x01;
*(buf+1)=0x02;
*(buf+2)=0x03;
*(buf+3)=0x04;
*(buf+4)=NULL;

for(int k=0 ; buf[k] != NULL; k++)
{
printf("0x%.2x ",buf[k]);
}
free( buf );
}

I think this will work for u. Smile | :)

Re: storing value in buf

ikbahrian28-Dec-06 22:32

ikbahrian

28-Dec-06 22:32

thx appoos

Probe for manifest error

Kharfax28-Dec-06 3:39

Kharfax

28-Dec-06 3:39

Im working in VC++ 2003, my project uses a .lib and a .dll generated in VC++ 2005

I get the following runtime error as soon as I execute the App

LDR: LdrpWalkImportDescriptor() failed to probe c:\Mapi\MAPIEx.dll for its manifest, ntstatus 0xc0150002

Can Anyone help me to solve this?

Thanks in advance
Sebastian

Re: Probe for manifest error

Wes Aday28-Dec-06 4:06

Wes Aday

28-Dec-06 4:06

I had that exact same error yesterday with a resource only DLL. When I went into the project properties and changed the Linker->Manifest File->Generate manifest setting to "No", my error went away.

BUT changing that setting back to "Yes" did not reproduce the error message.

Re: Probe for manifest error

Kharfax28-Dec-06 4:15

Kharfax

28-Dec-06 4:15

Yeap I dont know whats that error, finally I made a new project and re compiled it and now all is working right

Thanks for the feedback Big Grin | :-D

How to read a file line by line in VC++

vikram.vit28-Dec-06 3:08

vikram.vit

28-Dec-06 3:08

Can anyone please help me to find out a simple way to read a text file line by line in Visual C++ 6. Thanks in advance.

Regards,
Vikram

Re: How to read a file line by line in VC++

prasad_som28-Dec-06 3:29

prasad_som

28-Dec-06 3:29

Use istream::getline.

Prasad
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Re: How to read a file line by line in VC++

jk chan28-Dec-06 3:38

jk chan

28-Dec-06 3:38

You can try fgets which is C function
look the sample code snippet
FILE *fp = fopen("c:\\file.txt","r");
char ar[100];
while(fgets(ar,100,fp))
{
print (ar);
}

fclose(fp);

If u can Dream... U can do it

Re: How to read a file line by line in VC++

David Crow28-Dec-06 4:18

David Crow

28-Dec-06 4:18