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#Python Snarl bindings version 0.2a
#Hacked together by Alexander Lash in the wee hours of 2/27.
#Contact him at alexander.lash@gmail.com
#0.1a: Initial release
#0.2a: Added basic command line functions
#LARGELY UNTESTED REFERENCE IMPLEMENTATION
import win32gui, win32api, win32con
import struct, array
from ctypes import cast, POINTER, c_byte
class SNARL_COMMANDS:
SNARL_SHOW = 1
SNARL_HIDE = 2
SNARL_UPDATE = 3
SNARL_IS_VISIBLE = 4
SNARL_GET_VERSION = 5
SNARL_REGISTER_CONFIG_WINDOW = 6
SNARL_REVOKE_CONFIG_WINDOW = 7
SNARL_REGISTER_ALERT = 8
SNARL_REVOKE_ALERT = 9
SNARL_REGISTER_CONFIG_WINDOW_2 = 0xA
SNARL_EX_SHOW = 0x20
@staticmethod
def sendCommand(command, id=0, timeout=0, longdata=0, title="", text="", icon="",
extra=None, extra2=None, reserved1=None, reserved2=None):
if extra is None and extra2 is None and reserved1 is None and reserved2 is None:
command = struct.pack("ILLL1024s1024s1024s",
command,
id,
timeout,
longdata, #LngData2
array.array('B', title).tostring(),
array.array('B', text).tostring(),
array.array('B', icon).tostring())
else:
if reserved1 is None:
reserved1 = 0
if reserved2 is None:
reserved2 = 0
if extra is None:
extra = ""
if extra2 is None:
extra2 = ""
command = struct.pack("ILLL1024s1024s1024s1024s1024sLL",
command,
id,
timeout,
longdata, #LngData2
array.array('B', title).tostring(),
array.array('B', text).tostring(),
array.array('B', icon).tostring(),
array.array('B', extra).tostring(),
array.array('B', extra2).tostring(),
reserved1,
reserved2)
command_pack = array.array("B", command)
command_info = command_pack.buffer_info()
cd = struct.pack("LLP", 2, command_info[1], command_info[0])
cd_pack = array.array("B", cd)
cd_info = cd_pack.buffer_info()
hwnd = win32gui.FindWindow(None, 'Snarl')
if hwnd:
return win32api.SendMessage(hwnd, win32con.WM_COPYDATA, 0, cd_info[0])
else:
return False
#deviation from spec: Python doesn't do references.
def snGetVersion():
hr = SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_GET_VERSION)
if hr:
ver = cast(hr, POINTER(c_byte))
return (ver[0], ver[1])
return False
#deviation from spec: sound is an optional parameter.
def snShowMessage(title, text, timeout=0, iconPath="", reply=0, reply_msg=0, sound=None):
if title is None or text is None:
return False
if sound is None:
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_SHOW, reply, timeout, reply_msg,
title,text,iconPath)
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_SHOW, reply, timeout, reply_msg,
title,text,iconPath,sound)
def snUpdateMessage(id, title, text):
if id is None or title is None or text is None:
return False
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_UPDATE, id=id, title=title, text=text) == -1
def snHideMessage(id):
id = int(id)
if id is None:
return False
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_HIDE, id=id) == -1
#For some reason this ALWAYS returns -1 for all messages that were once displayed.
def snIsMessageVisible(id):
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_IS_VISIBLE, id=id) == -1
#Untested
def snRegisterConfig(hwnd, appname, reply_msg, icon=None):
if icon is None:
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_REGISTER_CONFIG_WINDOW,
longdata=hwnd, title=appname, id = reply_msg)
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_REGISTER_CONFIG_WINDOW,
longdata=hwnd, title=appname, id = reply_msg,
icon=icon)
#Untested
def snRevokeConfig(hwnd):
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_REVOKE_CONFIG_WINDOW,
longdata=hwnd)
#Reference implementation - seems to do nothing?
def snRegisterAlert(title, text):
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_REGISTER_ALERT,
title=title, text=text)
#Reference implementation - seems to do nothing?
def snRevokeAlert():
return SNARL_COMMANDS.sendCommand(SNARL_COMMANDS.SNARL_REVOKE_ALERT)
if __name__=='__main__':
import sys, inspect
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-s", "--show", action="store_const", dest="cmd",
const=snShowMessage,
help="Show a message with the given parameters.")
parser.add_option("-u", "--update", action="store_const", dest="cmd",
const=snUpdateMessage,
help="Update a message with the given parameters.")
parser.add_option("-c", "--hide", action="store_const", dest="cmd",
const=snHideMessage,
help="Hide a message with the given ID.")
parser.add_option("-i", "--id", dest="id",
help="ID to use for the update/hide.")
parser.add_option("-t", "--title", dest="title",
help="Title to use for the show/update.")
parser.add_option("-x", "--text", dest="text",
help="Text to use for the show/update.")
parser.add_option("-T", "--timeout", dest="timeout",
help="Timeout to use for the show.")
parser.add_option("-I", "--icon", dest="iconPath",
help="Icon to use for the show.")
parser.add_option("-S", "--sound", dest="sound",
help="Sound to use for the show.")
if snGetVersion == False:
print "Snarl not running!"
sys.exit(1)
(options, args) = parser.parse_args(sys.argv[1:])
if options.cmd is None:
parser.parse_args(['-h'])
d = options.__dict__.copy()
cmd = options.cmd
for key in options.__dict__:
if key not in inspect.getargspec(cmd)[0]:
del d[key]
elif d[key] is None:
del d[key]
print cmd(**d)
sys.exit(0)
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