Question

使用下面的代码，在请求其成员获取图标后，我得到一个指向SysListView32桌面的指针：

import ctypes


def GetDesktopListViewHandle():
    import ctypes
    FindWindow = ctypes.windll.user32.FindWindowW
    GetWindow = ctypes.windll.user32.GetWindow

    def GetClassName(hwnd):
        buff = ctypes.create_unicode_buffer(100)
        ctypes.windll.user32.GetClassNameW(hwnd, buff, 99)
        return buff.value

    from win32con import GW_CHILD

    hwnd = FindWindow('Progman', None)
    hwnd = GetWindow(hwnd, GW_CHILD)  # SHELLDLL_DefView
    hwnd = GetWindow(hwnd, GW_CHILD)  # SysListView32

    if GetClassName(hwnd) != 'SysListView32':
        return 0

    return hwnd


def ListView_GetItemCount(hwnd):
    import commctrl
    import ctypes
    SendMessage = ctypes.windll.user32.SendMessageW

    return SendMessage(hwnd, commctrl.LVM_GETITEMCOUNT, 0, 0)


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


def get_desktop_image_icon(index):
    import struct
    import ctypes
    from commctrl import LVIF_IMAGE, LVM_GETITEMW
    from win32con import PROCESS_ALL_ACCESS, MEM_RESERVE, MEM_COMMIT, PAGE_READWRITE, MEM_RELEASE

    GetWindowThreadProcessId = ctypes.windll.user32.GetWindowThreadProcessId
    SendMessage = ctypes.windll.user32.SendMessageW
    OpenProcess = ctypes.windll.kernel32.OpenProcess
    VirtualAllocEx = ctypes.windll.kernel32.VirtualAllocEx
    WriteProcessMemory = ctypes.windll.kernel32.WriteProcessMemory
    ReadProcessMemory = ctypes.windll.kernel32.ReadProcessMemory
    VirtualFreeEx = ctypes.windll.kernel32.VirtualFreeEx
    CloseHandle = ctypes.windll.kernel32.CloseHandle

    MAX_LEN = 4096

    try:
        hwnd = GetDesktopListViewHandle()
        pid = ctypes.create_string_buffer(4)
        p_pid = ctypes.addressof(pid)
        GetWindowThreadProcessId(hwnd, p_pid)

        h_process = OpenProcess(PROCESS_ALL_ACCESS, False, struct.unpack("i", pid)[0])

        copied = ctypes.create_string_buffer(4)
        p_copied = ctypes.addressof(copied)

        lvitem = LVITEMW()
        lvitem.mask = ctypes.c_uint32(LVIF_IMAGE)
        lvitem.iItem = ctypes.c_int32(index)
        lvitem.iSubItem = ctypes.c_int32(0)

        p_buffer_lvi = VirtualAllocEx(h_process, 0, MAX_LEN, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE)
        WriteProcessMemory(h_process, p_buffer_lvi, ctypes.addressof(lvitem), ctypes.sizeof(LVITEMW), p_copied)

        SendMessage(hwnd, LVM_GETITEMW, 0, p_buffer_lvi)
        ReadProcessMemory(h_process, p_buffer_lvi, ctypes.addressof(lvitem), ctypes.sizeof(LVITEMW), p_copied)
        return lvitem.iImage

    finally:
        try:
            VirtualFreeEx(h_process, p_buffer_lvi, 0, MEM_RELEASE)
        except:
            pass

        try:
            CloseHandle(h_process)
        except:
            pass

当你运行代码时，要进行一些操作，我不知道可以做些什么：

print(get_desktop_image_icon(0))  # 11
print(get_desktop_image_icon(1))  # 12
print(get_desktop_image_icon(2))  # 13

更新

假设get_desktop_image_icon函数返回ImageList索引，我使用下面的代码来获取ImageList ListView桌面的句柄，{{1}请求索引中的图标，但它们不会回来。提示，可能是什么问题以及如何解决它？

ImageList

如何获取图标并保存？

如何获取图像图标桌面

0 个答案: