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