Question

当我手动替换图标时（即，不在资源管理器中的“文件夹选项”窗口中），图标不会更新。例如，如果我执行此批处理代码：

REG ADD HKCR\testfile\DefaultIcon /ve /d "C:\test.ico,0" /f

图标显示在“文件夹选项”列表中应该显示，但图标不会在桌面或资源管理器中更新。

如果我只是点击任何文件类型的“更改图标”按钮并退出“文件夹选项”窗口，图标就会更新。但据我所知，这不能通过批处理或VBS来完成。

重新启动explorer.exe可行，但是如果我这样做，任务栏中的应用程序选项卡由于某种原因变得有问题（例如：当应用程序最大化时，我不能只是左键单击任务栏中的选项卡最小化它 - 我必须实际上右键单击它并命中最小化...）。更不用说，如果我这样做，所有打开的资源管理器窗口都会关闭，这有点麻烦。

我还有一份 TuneUp Utilities 的副本，它有一个重新加载图标缓存的选项，这确实可以正常工作。但是再一次，我无法通过批处理或VBS访问此工具。它不会重新启动explorer.exe或删除任何文件（如某些解决方案）。我对此持肯定态度，因为我的操作系统驱动器上没有iconcache.db文件任何地方。

我也试过通过VBS添加注册表项，但这没有帮助。

欢迎任何批处理或VBScript解决方案！

Answer 1

通过关联文件，系统会刷新图标，所以我的简单解决方案就是：

ASSOC .anyextension=anytype
ASSOC .anyextension=

第二行取消了扩展名。

Answer 2

This page有一个VB程序可以重建缓存（查看实际代码的 frmRebuiltIconCache.frm ）

它的作用是检查HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size的值，从中减去1，通过SendMessageTimeout强制超时，然后重置该值，并重复超时

由于您无法从vbs调用DLL（没有外部程序），这可能无法满足您的需求。我已经把这个计划减少了：

'SendMessageTimeout values
Const HWND_BROADCAST = &HFFFF
Const WM_SETTINGCHANGE = &H1A
Const SPI_SETNONCLIENTMETRICS = &H2A
Const SMTO_ABORTIFHUNG = &H2

'Private Declare Function SendMessageTimeout Lib "user32" Alias "SendMessageTimeoutA" _
'  (ByVal hwnd As Long, ByVal msg As Long, _
'  ByVal wParam As Long, ByVal lParam As Long, _
'  ByVal fuFlags As Long, ByVal uTimeout As Long, _
'  lpdwResult As Long) As Long

Dim icon_size
Dim new_icon_size
Dim result
Dim SysVarReg
Set SysVarReg = WScript.CreateObject("WScript.Shell")
    ' Get the current icon size.
icon_size = SysVarReg.RegRead ("HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size")
    ' Increase the value by 1.
new_icon_size = CInt(icon_size) + 1
SysVarReg.RegWrite "HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size", new_icon_size
    ' Send HWND_BROADCAST to refresh the icons.
SendMessageTimeout HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0, SMTO_ABORTIFHUNG, 10000, result
    ' Restore the original value.
SysVarReg.RegWrite "HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size", icon_size
    ' Send HWND_BROADCAST to refresh the icons again.
SendMessageTimeout HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0, SMTO_ABORTIFHUNG, 10000, result

但是如果没有包装DLL调用的东西，你将无法通过vbs

执行此操作

Answer 3

' It work in XP.

' The following is "VBA" Module.

' ---------------------------------------------------------

'SendMessageTimeout values
Const HWND_BROADCAST = &HFFFF
Const WM_SETTINGCHANGE = &H1A
Const SPI_SETNONCLIENTMETRICS = &H2A
Const SMTO_ABORTIFHUNG = &H2

Private Declare Function SendMessageTimeout Lib "user32" Alias "SendMessageTimeoutA" _
  (ByVal hwnd As Long, ByVal msg As Long, _
  ByVal wParam As Long, ByVal lParam As Long, _
  ByVal fuFlags As Long, ByVal uTimeout As Long, _
  lpdwResult As Long) As Long


Sub Rebuild_Icon_cache()

Dim icon_size
Dim new_icon_size
Dim result
Dim SysVarReg

Set SysVarReg = CreateObject("WScript.Shell")

' Get the current icon size.
icon_size = SysVarReg.RegRead("HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size")

' Increase the value by 1.
new_icon_size = CInt(icon_size) + 1
SysVarReg.RegWrite "HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size", new_icon_size

' Send HWND_BROADCAST to refresh the icons.
SendMessageTimeout HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0, SMTO_ABORTIFHUNG, 10000, result

' Restore the original value.
SysVarReg.RegWrite "HKCU\Control Panel\Desktop\WindowMetrics\Shell Icon Size", icon_size

' Send HWND_BROADCAST to refresh the icons again.
SendMessageTimeout HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0, SMTO_ABORTIFHUNG, 10000, result

End Sub

以编程方式更改和刷新图标（无需重新启动）

3 个答案: