How to change the desktop background via command line using rundll32.exe. - China DOS Union Forum

Subject:

Monitor
Module: desk.cpl
Command: rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,0
Result: Background settings.

The above one can't be directly modified... The following is for screen saver, depressed

Module: appwiz.cpl
Command: rundll32.exe desk.cpl,InstallScreenSaver c:\winnt\system\Flying Windows.scr
Result: Install screen saver and display preview property page.

For the rundll32.exe call commands that can be found on the network, they only can display a certain operation interface.
It has no effect on script automation...

Regarding the format of calling .dll functions in command line mode
and the information about the way of supporting parameterized calls is not found at all.

[ Last edited by tghksj on 2006-12-6 at 02:50 PM ]

Brother, you can refer to the content of the following post, which talks about changing the desktop background from the registry, refreshing the desktop, to using third-party tools~ :)

Changing Desktop Background
http://www.cn-dos.net/forum/viewthread.php?tid=24982&fpage=1&highlight=%E6%A1%8C%E9%9D%A2

Setting Background Desktop, Creating Shortcuts, Emptying Recycle Bin, Command-line Utilities
http://www.cn-dos.net/forum/viewthread.php?tid=23132&fpage=1&highlight=%E6%A1%8C%E9%9D%A2

How to "Refresh Desktop" and Reload "explorer.exe" Using Rundll32?
http://www.cn-dos.net/forum/viewthread.php?tid=24465&fpage=1&highlight=%E6%A1%8C%E9%9D%A2

[ Last edited by redtek on 2006-12-4 at 08:08 AM ]

RE redtek :

My idea is to use the function of rundll32.exe to call functions to achieve the purpose in a single line.
Because there is a function to replace the desktop background in user.dll, but there is no reaction when I call it in the command line with rundll32.exe.

The key of my problem is not "changing the desktop background" but how to achieve it through rundll32.exe.
Since rundll32.exe can call.dll functions, why can't batch processing use it for object-oriented programming like VB.VC?

I have already implemented and used batch processing with the help of third-party plugins. The code for borrowing MS's "automatic wallpaper change" is as follows
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
COPY bgswitch.dll %WINDIR%\SYSTEM32\
COPY bgswitch.exe %WINDIR%\SYSTEM32\
REGSVR32 /S bgswitch.dll
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Directory" /t REG_SZ /d F:\Desktop Background\wallpaper /f
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Refresh Unit" /t REG_DWORD /d 0 /f
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Refresh Frequency" /t REG_DWORD /d 0 /f
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Random" /t REG_DWORD /d 0 /f
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Disabled" /t REG_DWORD /d 0 /f
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Force Stretch" /t REG_DWORD /d 0 /f
bgswitch
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

Oh right, thank you for adding 5 points to my "TGHKSJ.CMD", heh heh :P

[ Last edited by tghksj on 2006-12-6 at 02:54 PM ]

Bump, I also want to know the function of the API function

```
reg add "hkcu\control panel\desktop" /v TileWallpaper /d 0 /f
reg add "hkcu\control panel\desktop" /v Wallpaper /d %wallpaper% /f
reg add "hkcu\control panel\desktop" /v WallpaperStyle /d 2 /f
RunDll32.exe USER32.DLL,UpdatePerUserSystemParameters

%wallpaper% is a BMP file with a full path
```

Floor1　tghksj	Posted 2006-12-04 19:10
社区乞丐　Posts 90　Credits -49
Subject: Monitor Module: desk.cpl Command: rundll32.exe shell32.dll,Control_RunDLL desk.cpl,,0 Result: Background settings. The above one can't be directly modified... The following is for screen saver, depressed Module: appwiz.cpl Command: rundll32.exe desk.cpl,InstallScreenSaver c:\winnt\system\Flying Windows.scr Result: Install screen saver and display preview property page. For the rundll32.exe call commands that can be found on the network, they only can display a certain operation interface. It has no effect on script automation... Regarding the format of calling .dll functions in command line mode and the information about the way of supporting parameterized calls is not found at all. [ Last edited by tghksj on 2006-12-6 at 02:50 PM ]

Floor2　redtek	Posted 2006-12-04 21:07
金牌会员　Posts 1,147　Credits 2,902
Brother, you can refer to the content of the following post, which talks about changing the desktop background from the registry, refreshing the desktop, to using third-party tools~ :) Changing Desktop Background http://www.cn-dos.net/forum/viewthread.php?tid=24982&fpage=1&highlight=%E6%A1%8C%E9%9D%A2 Setting Background Desktop, Creating Shortcuts, Emptying Recycle Bin, Command-line Utilities http://www.cn-dos.net/forum/viewthread.php?tid=23132&fpage=1&highlight=%E6%A1%8C%E9%9D%A2 How to "Refresh Desktop" and Reload "explorer.exe" Using Rundll32? http://www.cn-dos.net/forum/viewthread.php?tid=24465&fpage=1&highlight=%E6%A1%8C%E9%9D%A2 [ Last edited by redtek on 2006-12-4 at 08:08 AM ]

Floor3　tghksj	Posted 2006-12-07 03:41
社区乞丐　Posts 90　Credits -49
RE redtek : My idea is to use the function of rundll32.exe to call functions to achieve the purpose in a single line. Because there is a function to replace the desktop background in user.dll, but there is no reaction when I call it in the command line with rundll32.exe. The key of my problem is not "changing the desktop background" but how to achieve it through rundll32.exe. Since rundll32.exe can call.dll functions, why can't batch processing use it for object-oriented programming like VB.VC? I have already implemented and used batch processing with the help of third-party plugins. The code for borrowing MS's "automatic wallpaper change" is as follows :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: COPY bgswitch.dll %WINDIR%\SYSTEM32\ COPY bgswitch.exe %WINDIR%\SYSTEM32\ REGSVR32 /S bgswitch.dll REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Directory" /t REG_SZ /d F:\Desktop Background\wallpaper /f REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Refresh Unit" /t REG_DWORD /d 0 /f REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Refresh Frequency" /t REG_DWORD /d 0 /f REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Random" /t REG_DWORD /d 0 /f REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Disabled" /t REG_DWORD /d 0 /f REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\BackgroundManager /v "Force Stretch" /t REG_DWORD /d 0 /f bgswitch ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Oh right, thank you for adding 5 points to my "TGHKSJ.CMD", heh heh :P [ Last edited by tghksj on 2006-12-6 at 02:54 PM ]

Floor4　lovehack2006	Posted 2007-02-16 03:29
初级用户　Posts 64　Credits 135
Good stuff...

Floor5　anqing	Posted 2007-02-16 22:24
高级用户　Posts 413　Credits 859
Bump, I also want to know the function of the API function

Floor6　gne3	Posted 2007-02-17 01:14
高级用户　Posts 252　Credits 526

Floor7　everest79	Posted 2007-02-17 02:49
金牌会员　Posts 1,127　Credits 2,564
``` reg add "hkcu\control panel\desktop" /v TileWallpaper /d 0 /f reg add "hkcu\control panel\desktop" /v Wallpaper /d %wallpaper% /f reg add "hkcu\control panel\desktop" /v WallpaperStyle /d 2 /f RunDll32.exe USER32.DLL,UpdatePerUserSystemParameters %wallpaper% is a BMP file with a full path ```