Hello, I am trying to read the contents of a CListCtrl. The control is in a window owned by a non-python process. I can get pretty close but ultimately get a failure from PyCListCtrl.GetItem(). I think it's because the python layer is passing a pointer from its own address space to a different process when it asks the CListCtrl to respond to GetItem().
Specifically, I have: * Process A, non-python process, has window with CListCtrl control * Process B, python process, executes the following steps: - win32gui.EnumWindows to find the window in process A - win32gui.EnumChildWindows to find the list control in that window - win32ui.CreateWindowFromHandle to wrap the control's handle with a PyCListCtrl object - PyCListCtrl.GetItemCount() works fine, as do other getters and setters that don't require pointers - PyCListCtrl.GetItem() fails with the message: "GetItem failed" The error seems to be coming from win32ctrlList.cpp PyCListCtrl_GetItem() function, which allocates a local LV_ITEM on the stack and then passes the address to CListCtrl->GetItem(). I found this article that explains how to use the VirtualAllocEx(), ReadProcessMemory() and WriteProcessMemory() functions to do something very similar to what I want, but in C: http://www.codeproject.com/threads/int64_memsteal.asp So my questions are: 1. is my diagnosis of the problem correct? 2. is there any way to do a cross-process GetItem() from python? 3. more important, is there another way to do what I want from python, which is to read the contents of a CListCtrl contained in a window owned by another process? Thanks, Michael M __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/ _______________________________________________ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
