# ocxserialtest.py
#
# Sample that uses the mscomm OCX to talk to a serial
# device.
# Very simple - queries a modem for ATI responses
import win32ui, win32uiole
import win32con
from pywin.mfc import dialog,activex
from win32com.client import gencache
import pythoncom
SERIAL_SETTINGS = '19200,n,8,1'
SERIAL_PORT = 2
win32ui.DoWaitCursor(1)
serialModule = gencache.EnsureModule("{648A5603-2C6E-101B-82B6-000000000014}", 0, 1, 1)
win32ui.DoWaitCursor(0)
if serialModule is None:
raise ImportError("MS COMM Control does not appear to be installed on the PC")
def MakeDlgTemplate():
style = win32con.DS_MODALFRAME | win32con.WS_POPUP \
| win32con.WS_VISIBLE | win32con.WS_CAPTION \
| win32con.WS_SYSMENU | win32con.DS_SETFONT
cs = win32con.WS_CHILD | win32con.WS_VISIBLE
dlg = [ ["Very Basic Terminal",
(0, 0, 350, 180), style, None, (8, "MS Sans Serif")], ]
s = win32con.WS_TABSTOP | cs
dlg.append(["RICHEDIT", None, 132, (5, 5, 340, 170),s | win32con.ES_WANTRETURN | win32con.ES_MULTILINE | win32con.ES_AUTOVSCROLL | win32con.WS_VSCROLL])
return dlg
####################################
#
# Serial Control
#
class MySerialControl(activex.Control, serialModule.MSComm):
def __init__(self, parent):
activex.Control.__init__(self)
serialModule.MSComm.__init__(self)
self.parent = parent
def OnComm(self):
self.parent.OnComm()
class TestSerDialog(dialog.Dialog):
def __init__(self, *args):
dialog.Dialog.__init__(*(self,)+args)
self.olectl = None
def OnComm(self):
event = self.olectl.CommEvent
if event == serialModule.OnCommConstants.comEvReceive:
self.editwindow.ReplaceSel(self.olectl.Input)
def OnKey(self, key):
if self.olectl:
self.olectl.Output = chr(key)
def OnInitDialog(self):
rc = dialog.Dialog.OnInitDialog(self)
self.editwindow = self.GetDlgItem(132)
self.editwindow.HookAllKeyStrokes(self.OnKey)
self.olectl = MySerialControl(self)
try:
self.olectl.CreateControl("OCX",
win32con.WS_TABSTOP | win32con.WS_VISIBLE,
(7,43,500,300), self._obj_, 131)
except win32ui.error:
self.MessageBox("The Serial Control could not be created")
self.olectl = None
self.EndDialog(win32con.IDCANCEL)
if self.olectl:
self.olectl.Settings = SERIAL_SETTINGS
self.olectl.CommPort = SERIAL_PORT
self.olectl.RThreshold = 1
try:
self.olectl.PortOpen = 1
except pythoncom.com_error, details:
print "Could not open the specified serial port - %s" % (details.excepinfo[2])
self.EndDialog(win32con.IDCANCEL)
return rc
def OnDestroy(self, msg):
if self.olectl:
try:
self.olectl.PortOpen = 0
except pythoncom.com_error, details:
print "Error closing port - %s" % (details.excepinfo[2])
return dialog.Dialog.OnDestroy(self, msg)
def test():
d = TestSerDialog(MakeDlgTemplate() )
d.DoModal()
if __name__ == "__main__":
import demoutils
if demoutils.NeedGoodGUI():
test()
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