如何使用python 2.7移动Windows桌面图标？

我正在尝试编写一个 python例程来保存和恢复桌面图标位置.我在 Windows 7 x64上使用32位python 2.7.使用此处的信息(堆栈交换),我能够从外部进程列表视图中读取Windows用于存储此信息的图标名称和位置,但是在使用LVM_SETITEMPOSITION设置新位置(或恢复位置)时失败.所有图标最终都在桌面上的相同位置. ‘自动排列’和’对齐网格’已关闭.相关代码是最底层的.警告：如果您运行此代码,您的所有图标都将堆成一堆:(

import ctypes

class LVITEMW(ctypes.Structure):
    _fields_ = [
        ('mask',ctypes.c_uint32),('iItem',ctypes.c_int32),('iSubItem',('state',('stateMask',('pszText',ctypes.c_uint64),('cchTextMax',('iImage',('lParam',# On 32 bit should be c_long
        ('iIndent',('iGroupId',('cColumns',('puColumns',('piColFmt',ctypes.c_int64),('iGroup',]

class POINT(ctypes.Structure):
    _fields_ = [('x',ctypes.c_int),('y',ctypes.c_int)]

def icon_save_restore(savedicons=None,restore=False):
    import struct,commctrl,win32gui,win32con,win32api
    dthwnd = win32gui.FindWindow(None,'Program Manager')
    ukhwnd = win32gui.GetWindow(dthwnd,win32con.GW_CHILD)
    slvhwnd = win32gui.GetWindow(ukhwnd,win32con.GW_CHILD)
    pid = ctypes.create_string_buffer(4)
    p_pid = ctypes.addressof(pid)
    ctypes.windll.user32.GetWindowThreadProcessId(slvhwnd,p_pid)
    hProcHnd = ctypes.windll.kernel32.OpenProcess(win32con.PROCESS_ALL_ACCESS,False,struct.unpack("i",pid)[0])
    pBuffertxt = ctypes.windll.kernel32.VirtualAllocEx(hProcHnd,4096,win32con.MEM_RESERVE|win32con.MEM_COMMIT,win32con.PAGE_READWRITE)
    copied = ctypes.create_string_buffer(4)
    p_copied = ctypes.addressof(copied)
    lvitem = LVITEMW()
    lvitem.mask = ctypes.c_uint32(commctrl.LVIF_TEXT)
    lvitem.pszText = ctypes.c_uint64(pBuffertxt)
    lvitem.cchTextMax = ctypes.c_int32(4096)
    lvitem.iSubItem = ctypes.c_int32(0)
    pLVI = ctypes.windll.kernel32.VirtualAllocEx(hProcHnd,win32con.MEM_RESERVE| win32con.MEM_COMMIT,win32con.PAGE_READWRITE)
    win32api.SetLastError(0)
    ctypes.windll.kernel32.WriteProcessMemory(hProcHnd,pLVI,ctypes.addressof(lvitem),ctypes.sizeof(lvitem),p_copied)
    num_items = win32gui.SendMessage(slvhwnd,commctrl.LVM_GETITEMCOUNT)
    if restore is False:
        p = POINT()
        pBufferpnt = ctypes.windll.kernel32.VirtualAllocEx(hProcHnd,ctypes.sizeof(p),win32con.PAGE_READWRITE)
        icons = {}
        for i in xrange(num_items):
            # Get icon text
            win32gui.SendMessage(slvhwnd,commctrl.LVM_GETITEMTEXT,i,pLVI)
            target_bufftxt = ctypes.create_string_buffer(4096)
            ctypes.windll.kernel32.ReadProcessMemory(hProcHnd,pBuffertxt,ctypes.addressof(target_bufftxt),p_copied)
            key = target_bufftxt.value
            # Get icon position
            win32api.SendMessage(slvhwnd,commctrl.LVM_GETITEMPOSITION,pBufferpnt)
            p = POINT()
            ctypes.windll.kernel32.ReadProcessMemory(hProcHnd,pBufferpnt,ctypes.addressof(p),p_copied)
            icons[key] = (i,p)
        ctypes.windll.kernel32.VirtualFreeEx(hProcHnd,win32con.MEM_RELEASE)
        ctypes.windll.kernel32.VirtualFreeEx(hProcHnd,win32con.MEM_RELEASE)
        win32api.CloseHandle(hProcHnd)
        return icons
    else:  # RESTORE ICON POSITIONS PROBLEM IS HERE SOMEWHERE!!!
        win32gui.SendMessage(slvhwnd,win32con.WM_SETREDRAW,0)
        for i in xrange(num_items):
            # Get icon text
            win32gui.SendMessage(slvhwnd,p_copied)
            key = target_bufftxt.value
            if key in savedicons.keys():
                # Set icon position
                p = savedicons[key][1]  # p is ctypes POINT
                p_lng = point_to_long(p)  # explicitly convert to HIWORD/LOWORD and c_long
                # Reserve space for input variable in foreign process and get pointer to it the that memory space
                pBufferpnt = ctypes.windll.kernel32.VirtualAllocEx(hProcHnd,ctypes.sizeof(p_lng),win32con.PAGE_READWRITE)
                # Write the desired coordinates in to the space just created
                ret = ctypes.windll.kernel32.WriteProcessMemory(hProcHnd,ctypes.addressof(p_lng),p_copied)
                if ret == 0:
                    raise WindowsError
                # Send the message to change the position for that item's index and the pointer to the new position
                ret = win32gui.SendMessage(slvhwnd,commctrl.LVM_SETITEMPOSITION,pBufferpnt)
                if ret == 0:
                    raise WindowsError
                # Release the reserved memory for the variable (I recognize that I probably don't need to aLloc/free this within the loop)
                ctypes.windll.kernel32.VirtualFreeEx(hProcHnd,win32con.MEM_RELEASE)
        win32gui.SendMessage(slvhwnd,1,0)
        ctypes.windll.kernel32.VirtualFreeEx(hProcHnd,win32con.MEM_RELEASE)
        win32api.CloseHandle(hProcHnd)
        return None


def point_to_long(p):
    ret = (p.y * 0x10000) + (p.x & 0xFFFF)
    return ctypes.c_long(ret)

if __name__ == '__main__':
    mysavedicons = icon_save_restore(restore=False)
    icon_save_restore(mysavedicons,restore=True)

我认为可能存在以下问题：1)与32位和64位内存地址空间有关,但是我编写LVITEM结构或读取图标文本的其他组件工作正常或2)存在一些问题我正在转换坐标信息或为GETITEMPOSITION调用SendMessage.任何见解或帮助将不胜感激.