• okibi (3/3) Jul 11 2007 Hey,
• Regan Heath (5/10) Jul 11 2007 I doubt it.. but you can call CreateProcess and prevent the window
• okibi (3/15) Jul 11 2007 Is there documentation somewhere on how these work? Also, will they work...
• Regan Heath (16/34) Jul 11 2007 Popen;
• okibi (9/51) Jul 11 2007 I tried your method for popen and i get "Symbol undefined" errors. I als...
• Regan Heath (7/18) Jul 11 2007 Ahh, I was mistaken; popen only works on UNIX. You need to code up
• okibi (3/25) Jul 11 2007 Does system() (within std.process) not work on linux? I was under the im...
• okibi (9/51) Jul 11 2007 I tried your method for popen and i get "Symbol undefined" errors. I als...

okibi <okibi ratedo.com> writes:

Hey,

Is it possible to run a command with the system() function without having the
program open up a command prompt until it finishes?

Thanks!

Regan Heath <regan netmail.co.nz> writes:

okibi wrote:
 Hey,
 
 Is it possible to run a command with the system() function without having the
program open up a command prompt until it finishes?
 
 Thanks!

I doubt it.. but you can call CreateProcess and prevent the window 
appearing.  Also there is popen which may prevent it.  Both are more 
complicated than system but offer more flexibility too.

Regan

okibi <okibi ratedo.com> writes:

Is there documentation somewhere on how these work? Also, will they work on
both Windows and Linux?

Thanks!

Regan Heath Wrote:

 okibi wrote:
 Hey,
 
 Is it possible to run a command with the system() function without having the
program open up a command prompt until it finishes?
 
 Thanks!

 
 I doubt it.. but you can call CreateProcess and prevent the window 
 appearing.  Also there is popen which may prevent it.  Both are more 
 complicated than system but offer more flexibility too.
 
 Regan

Regan Heath <regan netmail.co.nz> writes:

okibi wrote:
 Is there documentation somewhere on how these work? Also, will they work on
both Windows and Linux?
 
 Thanks!
 
 Regan Heath Wrote:
 
 okibi wrote:
 Hey,

 Is it possible to run a command with the system() function without having the
program open up a command prompt until it finishes?

 Thanks!

 I doubt it.. but you can call CreateProcess and prevent the window 
 appearing.  Also there is popen which may prevent it.  Both are more 
 complicated than system but offer more flexibility too.

 Regan

 

Popen;
http://www.opengroup.org/pubs/online/7908799/xsh/popen.html

You will need to do something like:

extern(C) FILE *popen(const char *command, const char *mode);

in your D source file before you can call it.  See dm\include\stdio.h 
for the function declaration.  Any function you can find in the dm 
include directories can be called like this.

I wrote a ProcessStream using CreateProcess etc which worked on both 
windows and linux (although there may have been a few bugs to deal with):

http://www.digitalmars.com/d/archives/digitalmars/D/learn/internal_error_toObjFile_7911.html

You can find stuff like this by searching the archives here:
http://www.digitalmars.com/d/archives/digitalmars/D/index.html
http://www.digitalmars.com/d/archives/digitalmars/D/learn/index.html
..etc..

Regan

okibi <okibi ratedo.com> writes:

I tried your method for popen and i get "Symbol undefined" errors. I also tried
this code:

extern (C) {
	typedef void FILE;
	FILE* popen(char* cmd, char* type);
	int pclose(FILE* stream);
}

and get the same errors.

Any ideas?

Regan Heath Wrote:

 okibi wrote:
 Is there documentation somewhere on how these work? Also, will they work on
both Windows and Linux?
 
 Thanks!
 
 Regan Heath Wrote:
 
 okibi wrote:
 Hey,

 Is it possible to run a command with the system() function without having the
program open up a command prompt until it finishes?

 Thanks!

 I doubt it.. but you can call CreateProcess and prevent the window 
 appearing.  Also there is popen which may prevent it.  Both are more 
 complicated than system but offer more flexibility too.

 Regan

 

 
 Popen;
 http://www.opengroup.org/pubs/online/7908799/xsh/popen.html
 
 You will need to do something like:
 
 extern(C) FILE *popen(const char *command, const char *mode);
 
 in your D source file before you can call it.  See dm\include\stdio.h 
 for the function declaration.  Any function you can find in the dm 
 include directories can be called like this.
 
 I wrote a ProcessStream using CreateProcess etc which worked on both 
 windows and linux (although there may have been a few bugs to deal with):
 
 http://www.digitalmars.com/d/archives/digitalmars/D/learn/internal_error_toObjFile_7911.html
 
 You can find stuff like this by searching the archives here:
 http://www.digitalmars.com/d/archives/digitalmars/D/index.html
 http://www.digitalmars.com/d/archives/digitalmars/D/learn/index.html
 ..etc..
 
 Regan

Regan Heath <regan netmail.co.nz> writes:

okibi wrote:
 I tried your method for popen and i get "Symbol undefined" errors. I also
tried this code:
 
 extern (C) {
 	typedef void FILE;
 	FILE* popen(char* cmd, char* type);
 	int pclose(FILE* stream);
 }
 
 and get the same errors.
 
 Any ideas?

Ahh, I was mistaken;  popen only works on UNIX.  You need to code up 
something with CreateProcess.  I recall someone else posted a popen 
implementation for windows once..

http://www.digitalmars.com/pnews/read.php?server=news.digitalmars.com&group=digitalmars.D&artnum=14470

Maybe that will help.

Regan

okibi <okibi ratedo.com> writes:

Does system() (within std.process) not work on linux? I was under the
impression that it did.

I'll look into that, thanks!

Regan Heath Wrote:

 okibi wrote:
 I tried your method for popen and i get "Symbol undefined" errors. I also
tried this code:
 
 extern (C) {
 	typedef void FILE;
 	FILE* popen(char* cmd, char* type);
 	int pclose(FILE* stream);
 }
 
 and get the same errors.
 
 Any ideas?

 
 Ahh, I was mistaken;  popen only works on UNIX.  You need to code up 
 something with CreateProcess.  I recall someone else posted a popen 
 implementation for windows once..
 
 http://www.digitalmars.com/pnews/read.php?server=news.digitalmars.com&group=digitalmars.D&artnum=14470
 
 Maybe that will help.
 
 Regan

okibi <okibi ratedo.com> writes:

I tried your method for popen and i get "Symbol undefined" errors. I also tried
this code:

extern (C) {
	typedef void FILE;
	FILE* popen(char* cmd, char* type);
	int pclose(FILE* stream);
}

and get the same errors.

Any ideas?

Regan Heath Wrote:

 okibi wrote:
 Is there documentation somewhere on how these work? Also, will they work on
both Windows and Linux?
 
 Thanks!
 
 Regan Heath Wrote:
 
 okibi wrote:
 Hey,

 Is it possible to run a command with the system() function without having the
program open up a command prompt until it finishes?

 Thanks!

 I doubt it.. but you can call CreateProcess and prevent the window 
 appearing.  Also there is popen which may prevent it.  Both are more 
 complicated than system but offer more flexibility too.

 Regan

 

 
 Popen;
 http://www.opengroup.org/pubs/online/7908799/xsh/popen.html
 
 You will need to do something like:
 
 extern(C) FILE *popen(const char *command, const char *mode);
 
 in your D source file before you can call it.  See dm\include\stdio.h 
 for the function declaration.  Any function you can find in the dm 
 include directories can be called like this.
 
 I wrote a ProcessStream using CreateProcess etc which worked on both 
 windows and linux (although there may have been a few bugs to deal with):
 
 http://www.digitalmars.com/d/archives/digitalmars/D/learn/internal_error_toObjFile_7911.html
 
 You can find stuff like this by searching the archives here:
 http://www.digitalmars.com/d/archives/digitalmars/D/index.html
 http://www.digitalmars.com/d/archives/digitalmars/D/learn/index.html
 ..etc..
 
 Regan