> But the class is not there (trying the command .class TWinNTSystem gives
> me an error message: class, struct, union or type TWinNTSystem not
> defined). The header of this class is in the include directory.
>
> There is a dll file called Root_WinNT.dll which should contain the class,
> so I tried in ROOT the command .L Root_WinNT.dll. But, after
> this, the error
> message is still present.
TWinntSystem class is an implementation of TSystem class.
You may access the last one via global pointer gSystem
For example
gSystem->Exec("dir"); - to perform some "MS DOS" -like command
gSystem->Load("Root_html"); - to load dynamic library
gSystem->HomeDirectory(); to get a pointer to your home directory
gSystem->WorkingDirectory(); to get a pointer to the current home
directory
etc
Have a look into the rootalias.C script supplied with the ROOT
distribution for further examples:
E:\users\root\tutorials>type E:\users\root\tutorials\rootalias.C
//_______________________________________________
void edit(char *file)
{
char s[64], *e;
if (e = getenv("EDITOR"))
sprintf(s, "start %s %s", e, file);
else
sprintf(s, "start notepad %s", file);
gSystem->Exec(s);
}
//_______________________________________________
void ls(char *path=0)
{
char s[256] = "dir /w ";
if (path) strcat(s,path);
gSystem->Exec(s);
}
//_______________________________________________
void dir(char *path=0)
{
char s[256] = "dir ";
if (path) strcat(s,path);
gSystem->Exec(s);
}
//_______________________________________________
char *pwd()
{
return gSystem->WorkingDirectory();
}
//_______________________________________________
char *cd(char *path=0)
{
if (path)
gSystem->ChangeDirectory(path);
return pwd();
}
[ ... ]
This approach makes your code a kind of platform independed.
Hope this helps.
Valery
>
> Could you help me with this problem?
Which method did you find is not available via that TSystem class ?
Valery