diff options
Diffstat (limited to 'libsystem.html')
| -rw-r--r-- | libsystem.html | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/libsystem.html b/libsystem.html index ffed547d..a83dd1d6 100644 --- a/libsystem.html +++ b/libsystem.html @@ -198,7 +198,7 @@ it is a name to be looked up in the system's program search path The last argument <em>must</em> be NULL to tell <b>pm_system_lp()</b> where the arguments end. -<p>Note that the first argument ("arg0") to a program is +<p>Note that the first argument ("arg0") to a program is conventionally the first word of the command used to run the program, as if it were being run for a shell command. In other words, typically the name of the program. @@ -207,8 +207,8 @@ program. <pre> <code> - pm_system_lp("pnmtojpeg", NULL, NULL, NULL, NULL, - "pnmtojpeg", "mypicture.jpg", "-quality=50", NULL); + pm_system_lp("pnmtojpeg", NULL, NULL, NULL, NULL, + "pnmtojpeg", "mypicture.jpg", "-quality=50", NULL); </code> </pre> @@ -218,7 +218,7 @@ build a shell command using such arguments, unless you're really careful, you may end up building a shell command that does something very different from what you intended, because the argument could contain characters that mean something to the shell such as -"|". +"|". <p><b>pm_system_lp()</b> can also be considerably faster that <b>pm_system()</b>, since it skips the whole running of the shell. @@ -237,11 +237,11 @@ the array identifies the end of the arguments. <code> const char * argArray[3]; - argArray[0] = "pnmtojpeg"; - argArray[1] = "-quality=50"; + argArray[0] = "pnmtojpeg"; + argArray[1] = "-quality=50"; argArray[2] = NULL; - pm_system_vp("pnmtojpeg", argArray, NULL, NULL, NULL, NULL); + pm_system_vp("pnmtojpeg", argArray, NULL, NULL, NULL, NULL); </code> </pre> |