OS2::Process - exports constants for
system() call on
use OS2::Process; $pid = system(P_PM+P_BACKGROUND, "epm.exe");
the builtin function
OS/2 allows an optional first argument which denotes the mode of the process. Note that this argument is recognized only if it is strictly numerical.
You can use either one of the process modes:
P_WAIT (0) = wait until child terminates (default) P_NOWAIT = do not wait until child terminates P_SESSION = new session P_DETACH = detached P_PM = PM program
and optionally add PM and session option bits:
P_DEFAULT (0) = default P_MINIMIZE = minimized P_MAXIMIZE = maximized P_FULLSCREEN = fullscreen (session only) P_WINDOWED = windowed (session only)
P_FOREGROUND = foreground (if running in foreground) P_BACKGROUND = background
P_NOCLOSE = don't close window on exit (session only)
P_QUOTE = quote all arguments P_TILDE = MKS argument passing convention P_UNRELATED = do not kill child when father terminates
set_title(newtitle) are implemented.
my_type() returns the type of the current process (one of
undef on error.
file, or dies on error. The bits 0-2 of the result contain one of the values
The remaining bits should be masked with the following values to determine the type of the executable:
file_type() may croak with
one of the strings
"EXE marked invalid" to indicate typical error conditions. If given non-absolute path, will look
on PATH, will add extention .exe if no extension is present (add extension .
Title of the process (in the
window handle of switch entry of the process (in the
window handle of the icon of the process;
process handle of the owner of the entry in
process id of the owner of the entry in
session id of the owner of the entry in
whether visible in
whether item cannot be switched to (note that it is not actually grayed in
whether participates in jump sequence;
program type. Possible values are:
PROG_DEFAULT 0 PROG_FULLSCREEN 1 PROG_WINDOWABLEVIO 2 PROG_PM 3 PROG_VDM 4 PROG_WINDOWEDVDM 7
Although there are several other program types for WIN-OS/2 programs, these do not show up in this field. Instead, the PROG_VDM or PROG_WINDOWEDVDM program types are used. For instance, for PROG_31_STDSEAMLESSVDM, PROG_WINDOWEDVDM is used. This is because all the WIN-OS/2 programs run in DOS sessions. For example, if a program is a windowed WIN-OS/2 program, it runs in a PROG_WINDOWEDVDM session. Likewise, if it's a full-screen WIN-OS/2 program, it runs in a PROG_VDM session.
for a funny - and wrong - explanation ;-).
Andreas Kaiser <email@example.com>, Ilya Zakharevich <firstname.lastname@example.org>
spawn*() system calls.
If rather than formatting bugs, you encounter substantive content errors in these documents, such as mistakes in the explanations or code, please use the perlbug utility included with the Perl distribution.