Hi
I have a problem with passing a runtime license key for an ActiveX control to the method CreateControl() of the class pywin.mfc.activex.Control (and the CreateControl() method of win32ui)
Can anybody give me a hint in which form the license key string must be passed to this method?
I got the license key for the ActiveX control using the "License Key Requester" from Microsoft (http://support.microsoft.com/default.aspx?scid=kb;en-us;151771) and I used the string given as comment above the WCHAR array (since I don't know how to convert the WCHAR array for Python).
I pass this string to the CreateControl() method of pywin.mfc.activex.Control in the following way:
# instead of 'X' I use the correct license key string, of course
licKeyString = "XXXXXXXXX"
# self.ocx is an instance of pywin.mfc.activex.Control
# (actually a subclass of "Control" and the Python wrapper
# generated for the ActiveX control I want to use)
self.ocx.CreateControl(
windowTitle = "Component One Chart 8.0 ActiveX Control",
style = win32con.WS_VISIBLE | win32con.WS_CHILD,
rect = (0, 0, DEFAULT_WIDTH, DEFAULT_HEIGHT),
parent = self,
id = 1,
lic_string = licKeyString)
But when creating the control with this string, the control is created in "evaluation mode" and not, as expected, as a licensed control.
I looked up the code for the CreateControl() method and found out, that it passes the license key string directly to the CreateControl() of the PyCWnd class (the Python wrapper for the CWnd class of MFC implemented at win32ui). Than I looked at the Python extension, where the PyCWnd::CreateControl() is implemented, and found, that the macro T2OLE is used to convert the given Python string for the license key to an OLE string, before passing it to the original MFC method.
ok = pWnd->CreateControl(clsid, szWndName, style, rect, pWndParent, id, NULL, bStorage, T2OLE(szLicKey));
I'm not sure, but when I understand this right, the MFC method CreateControl() wants a BSTR here and I read somewhere that T2OLE does not return a BSTR. Can this be the problem here? Should there be used T2BSTR instead? Is this a bug in win32ui?
Has anybody ever used the license key string parameter of the CreateControl() method in Python and can tell my how to pass the license key string correctly?
Thanks in advance.
Wolfgang Schneider
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