Thanks for you answer. The handle is unfortunately from another process.
This is a piece of code I have found on the web that works great to get the
values of a list from another process. I have marked the part where I want to
select a list item:
def readListViewItems(hwnd, column_index=0):
# Allocate virtual memory inside target process
pid = ctypes.create_string_buffer(4)
p_pid = ctypes.addressof(pid)
GetWindowThreadProcessId(hwnd, p_pid) # process owning the given hwnd
hProcHnd = OpenProcess(PROCESS_ALL_ACCESS, False,
struct.unpack("i",pid)[0])
pLVI = VirtualAllocEx(hProcHnd, 0, 4096, MEM_RESERVE|MEM_COMMIT,
PAGE_READWRITE)
pBuffer = VirtualAllocEx(hProcHnd, 0, 4096, MEM_RESERVE|MEM_COMMIT,
PAGE_READWRITE)
# Prepare an LVITEM record and write it to target process memory
lvitem_str = struct.pack('iiiiiiiii',
*[0,0,column_index,0,0,pBuffer,4096,0,0])
lvitem_buffer = ctypes.create_string_buffer(lvitem_str)
copied = ctypes.create_string_buffer(4)
p_copied = ctypes.addressof(copied)
WriteProcessMemory(hProcHnd, pLVI, ctypes.addressof(lvitem_buffer),
ctypes.sizeof(lvitem_buffer), p_copied)
# iterate items in the SysListView32 control
num_items = win32gui.SendMessage(hwnd, LVM_GETITEMCOUNT)
item_texts = []
for item_index in range(num_items):
win32gui.SendMessage(hwnd, LVM_GETITEMTEXT, item_index, pLVI)
target_buff = ctypes.create_string_buffer(4096)
ReadProcessMemory(hProcHnd, pBuffer,
ctypes.addressof(target_buff), 4096, p_copied)
item_texts.append(target_buff.value)
if target_buff.value == "something":
# HERE THE list item should be selected, if the value
of the list item is something
#
#
#
pass
VirtualFreeEx(hProcHnd, pBuffer, 0, MEM_RELEASE)
VirtualFreeEx(hProcHnd, pLVI, 0, MEM_RELEASE)
win32api.CloseHandle(hProcHnd)
return item_texts
Do you have an idea?
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Gesendet: Samstag, 20. November 2010 12:00
An: python-win32@python.org
Betreff: python-win32 Digest, Vol 92, Issue 16
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Today's Topics:
1. Re: Simple selection of item in list (Tim Roberts)
----------------------------------------------------------------------
Message: 1
Date: Fri, 19 Nov 2010 10:43:38 -0800
From: Tim Roberts <t...@probo.com>
To: Python-Win32 List <python-win32@python.org>
Subject: Re: [python-win32] Simple selection of item in list
Message-ID: <4ce6c55a....@probo.com>
Content-Type: text/plain; charset="UTF-8"
ad...@genesisware.de wrote:
> my problem is probably simple but I haven?t found a solution anyway. I want
> so select items from an item list that allows multiple selections.
>
> I have got the handle of a SysListView32 control and the item index of the
> item I want to select.
>
> How can I arrange this in pywin?
Where did the handle come from? Is this a control within your own application?
One of the awkward things about the SysListView32 control is that most of its
messages require structures, and the structures are not marshaled properly
across process boundaries, so it's very difficult to control one in another
process.
If it is within your own process, you can send an LVM_SETITEMSTATE message with
the appropriate LVITEM structure.
--
Tim Roberts, t...@probo.com
Providenza & Boekelheide, Inc.
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