C / C++ / MFC

5-Jan-06 18:03

Dear All,

Please look at the following code ...
---------------------------------------------------------------------------
PROCESS_INFORMATION pi;
STARTUPINFO si;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
SetLastError(0);
CreateProcess("notepad.exe",NULL,NULL,NULL,FALSE,NULL,NULL,NULL,&si,&pi);
---------------------------------------------------------------------------

This code is not able to run the notepad because its not able to find the path of notapd.exe application.

But when I use Run option in Windows Start Menu ,type notapad and say OK, its able to find and run the notpad application may be from enviornment variables.

Please let me know why My code is not able find the notapd application?

PS- It will work if i copy notpad.exe application where my application exists.
Smile | :)

With Regards
Manoj

Anilkumar K V5-Jan-06 18:17

Anilkumar K V

5-Jan-06 18:17

Call

system("notepad.exe");

and refer MSDN for "system"

when u call run from start->run it work as follows ( MSDN)
The system function passes command to the command interpreter, which executes the string as an operating-system command. system refers to the COMSPEC and PATH environment variables that locate the command-interpreter file (the file named CMD.EXE in Windows NT). If command is NULL, the function simply checks to see whether the command interpreter exists.

Anil

manojk_batra5-Jan-06 19:37

5-Jan-06 19:37

Dear Anil,

Thanks you a lot for Great Help.

Smile | :)

Thanks & Regards
Manoj

ThatsAlok8-Jan-06 23:57

ThatsAlok

8-Jan-06 23:57

manojk_batra wrote:
Thanks you a lot for Great Help.

http://www.codeproject.com/system/newbiespawn.asp[^]

"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

lastgen5-Jan-06 18:46

lastgen

5-Jan-06 18:46

Make a call to the windows API command "GetWindowsDirectory" and use strcat to concatenate the notepad string to the end of it. You could just hardcode the string too (eg "C:\\Windows\\notepad.exe"), but if anyone has a custom windows install it may not find the file.

example code

<br />
char *strbuf[256];<br />
if (GetWindowsDirectory(strbuf, 256))<br />
{<br />
  strcat(strbuf, "\\notePad.exe");<br />
}<br />
else<br />
{<br />
// An error occurred, perhaps the buffer is too small?<br />
}<br />
<br />
// Now you should have the full path in the strbuf variable<br />
CreateProcess(strbuf,NULL,NULL,NULL,FALSE,NULL,NULL,NULL,&si,π);<br />
<br />

When I die I'd like to go peacefully in my sleep like my father, not screaming in terror like his passengers!!!

-- modified at 1:18 Friday 6th January, 2006

manojk_batra5-Jan-06 20:29

5-Jan-06 20:29

Dear Lastgen,

Thanks you a lot.
Smile | :)

Thanks & Regards
Manoj

Owner drawn5-Jan-06 19:01

Owner drawn

5-Jan-06 19:01

manojk_batra wrote:
But when I use Run option in Windows Start Menu ,type notapad and say OK, its able to find and run the notpad application may be from enviornment variables.

HKLM\Software\Microsoft\Windows\CurrentVersion\App paths.

Love Forgives--Love Gives--Jesus is Love Smile | :)

<marquee direction="up" height="50" scrolldelay="1" step="1" scrollamount="1" style="background-color:'#44ccff'">
--Owner Drawn
--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord

manojk_batra5-Jan-06 20:33

5-Jan-06 20:33

Dear Owner drawn,

Thanks you a lot.
Smile | :)

Thanks & Regards
Manoj

sunit55-Jan-06 19:06

sunit5

5-Jan-06 19:06

mention the full path and file name of the module which is to be executed ie., ..//notepad.exe in CreateProcess()

never say die

manojk_batra5-Jan-06 20:45

how can i create worker and UI thread in single application

5-Jan-06 20:45

Dear sunit5,

Thanks you a lot.
Smile | :)

Thanks & Regards
Manoj

Laxman95-Jan-06 17:49

Laxman9

5-Jan-06 17:49

hi,
how can i create an application which handles both worker and UI threads.
in MFC.

FAILURE is the first step towards SUCCESS

Re: how can i create worker and UI thread in single application

Anilkumar K V5-Jan-06 18:05

Anilkumar K V

5-Jan-06 18:05

For UI thread u need tto create an object from CWinThread,
Worker thread u can use AfxBeginThread or CreateThread method

Refer MSDN

How to create an independent thread for reading data from buffer of Serial Port ???

QuangDien5-Jan-06 15:17

QuangDien

5-Jan-06 15:17

Dear everyone,

I have to receive a very large data from my sensor via Serial Port. Here below is the structure of my data :

10 bytes HEADER + ( 4 bytes BEGIN + 240bytes DATA )*280 + 4 byes FOOTER
=> The total byte is : 10 + ( 4 + 240 )*280 + 4 = 68334 byes !

And, with such a large data, I don't know how to receive it. My buffer always overflow !!! So, now, I want to create a independent thread for reading data out of buffer, saving to other place and free the buffer sothat it can receive other data from my sensor without overflowing. I tried search "Serial Port" on this website, and I find the article about my problem. That article is "Serial Communication in Windows", posted by Ashish Dhar. I tried to use it, but I can't succeed !
So, please kindly show me how to trap create an independent thread to achieve my purpose.
Please don't ignore my question because this is my final project for graduating from my university ...
Please help me !!! My project's deadline is coming .... I really need that code ...
Thank you very much !!!
Best regards,

Quang Dien
Email to me at : quangdien12jan@yahoo.com

Re: How to create an independent thread for reading data from buffer of Serial Port ???

Anilkumar K V5-Jan-06 17:14

Anilkumar K V

5-Jan-06 17:14

You can use AfxBeginThread() or CreateThread to invoke a new thread.

In my suggestion Create threads for reading from COM port, Parsing (if any)the received data and processing the data. So u can start 3 threads ( must be ssynchronized). The read thread reads bytes of data only and keep in a byte pointer. The parsing thread read from the byte pointer and remove any header/paddings etc & convert to pure data u need and keep. The processing thread must read from it or assign to proper data structure and do it work..

Anilkumar

Quick ideas for activation

Alex Korchemniy5-Jan-06 14:57

Alex Korchemniy

5-Jan-06 14:57

I have a finished implementation for activation that relies on the manufacturer assigned non-changable serial number of a hard drive. During testing I discovered that my method of discovering this number does not work on all versions of Windows that are going to be supported. The WMI claass Win32_PhysicalMedia does not exist in Win2k. The workaround for this is also very painful, requiring DeviceIoControl and probably administrative priveleges at runtime. I noticed that there is Wmi32_BaseBoard class that provides a serial number. However, not all motherboard provide this information (driver code never sets the number).

What is a good, simply way to identify a machine that works consistently on Windows 2000 and newer?

Alex Korchemniy

TheGreatAndPowerfulOz5-Jan-06 20:20

TheGreatAndPowerfulOz

5-Jan-06 20:20

get the MAC address from the wired network card.

How To Get the MAC Address for an Ethernet Adapter[^]

Sebastian Schneider5-Jan-06 20:37

Sebastian Schneider

5-Jan-06 20:37

All the network cards I own (3COM PCI, REALTEK PCIE, 3COM PCMCIA models) allow me to set the MAC-Address on my own. Yes, they DO originally have a "unique"-MAC, but its changeable.

Cheers,
Sebastian

--
Contra vim mortem non est medicamen in hortem.

TheGreatAndPowerfulOz5-Jan-06 20:33

TheGreatAndPowerfulOz

5-Jan-06 20:33

look into using following Win32 API GetVolumneInformation[^]

Note that the forth parameter gives you the volume serial number that the operating system assigns when a hard disk is formatted. To programmatically obtain the hard disk's serial number that the manufacturer assigns, use the Windows Management Instrumentation (WMI) Win32_PhysicalMedia property SerialNumber. But obviously you already know that Win32_PhysicalMedia doesn't work in less than WinXP