Changes between Version 138 and Version 139 of UserGuideGit

Timestamp:

Mar 2, 2009, 1:01:22 PM (16 years ago)

Author:

Frédéric

Comment:

--

UserGuideGit

@@ -151 +151 @@
 == Tethered shooting ==
 
-It is possible to use an external program to make tethered shooting. The program needs to be run through a shell, where all parameters are given on command-line. If a '''{{{shoot.py}}}''' python script is found in the user config. dir, the 2 functions '''{{{mirrorLockup(stabilizationDelay)}}}''' and '''{{{shoot(bracketNumber)}}}''' will be called instead of internal ones.
-
-Here is an example script which can be used:
+It is possible to use an external program to make tethered shooting. The program needs to be run through a shell, where all parameters are given on command-line. If a '''{{{shoot.py}}}''' python script is found in the user config. dir, the 2 functions '''{{{mirrorLockup(stabilizationDelay)}}}''' and '''{{{shoot(bracketNumber)}}}''' will be called instead of internal ones. Note that if a function does not exists, the internal one will be called instead.
+
+Here is a minimalistic example script which can be used:
 
 {{{
@@ -160 +160 @@
 
 def mirrorLockup(stabilizationDelay):
-    print "Mirror lockup (stabilizationDelay=%.1f)" % stabilizationDelay
     # See shoot() function
 
 
 def shoot(bracketNumber):
-    print "Shoot (bracketNumber=%d)" % bracketNumber
-
-    # Launch external command
-    #p = subprocess.Popen(["myTetheredShootingProgram", "-capture", "%d" % bracketNumber], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
-    p = subprocess.Popen(["gphoto2", "--help"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
-
-    # Send data to external command input
-    #p.stdin.write("bla")
-
-    # Wait end of external command execution
+
+    # Launch the external command
+    p = subprocess.Popen(["gphoto2", "--help"], stdout=subprocess.PIPE)
+
+    # Wait end of execution
     p.wait()
 
-    # Print external command return code
-    print "returncode=%d" % p.returncode
-
-    # Print external command output
-    print p.stdout.read()
-    #print p.stdout.readlines()
-    #for line in p.stdout:
-        #print line,
+    # Return result (must be a tuple containing an int and a string)
+    return p.returncode, p.stdout.read()
 }}}