China DOS Union

We already know that double-clicking the desk.cpl file in the system32 directory or using the command line

rundll32 shell32.dll,Control_RunDLL desk.cpl

can open which dialog box for desktop properties settings. After changing the resolution, there will be a black screen for a while when applying. Hehe, imagine if we keep clicking "Apply", it will always be black. At this time, the person in front of the computer really becomes a blind man groping for an elephant! Unfortunately, we can't keep clicking...

Today, I was bored and analyzed these files. I found that there are actually interfaces in desk.cpl like in dll!
Since I don't know the specific parameters, I can only test one by one to see if there are any fun functions. Sure enough, perseverance pays off, and I found a few useful ones, including the black screen. Hehe, you can execute

rundll32 desk.cpl,DisplayTestSettingsW

So, heh, I thought there seems to be a function of looping to do something in the program. Let's try a batch file:

@echo off :OhYes rundll32 desk.cpl,DisplayTestSettingsW goto OhYes

Wait, don't run this, otherwise you will only have to restart. The CPU will be exhausted. Scientific research has found that each black screen can last about a second or so. It is estimated that it also depends on the machine configuration. So don't torture the CPU too much, let it rest, and also let you have a chance to KILL this P process. You can set the interval to about 1 second:

@echo off :OhYes rundll32 desk.cpl,DisplayTestSettingsW ping -n 1 127.0.0.1 > nul goto OhYes

Hehe, with this, you can play a prank. Let others only have to choose to stare at the black screen or restart. If you can add it to the startup item, uh, it's too immoral...
Of course, we have to prepare the antidote ourselves. Before executing, first enter in the run

taskkill /f /im cmd.exe

When it's dark, just press the WIN + R shortcut to switch to the run window and press Enter. But if you don't let the CPU rest, you will die...

Here's a VBS version and VBE version. Double-click to have no window, good hidden effect

Save as a.vbs file:
with createobject("wscript.shell") do .run "rundll32 desk.cpl,DisplayTestSettingsW",0,false wscript.sleep 999 loop end with

Vbe file, preset interval time 999 ms. Since there is a TAB character that can't be pasted correctly, I can only upload the file.

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There is another very cool and disgusting one. I haven't found a good solution yet. Please don't try it easily if you are not very familiar with operating the computer with the keyboard:

rundll32 desk.cpl,UpdateUIfontsDueToDPIchange

[ Last edited by qinchun36 on 2009-7-9 at 10:05 ]

Lzoo! You're too... boring. But I like it... top it.

If one day I get hold of your computer... I mean, if.

Hehe, the LZ is very...

Always spend so much thought on this kind of thing

Use eXeScope to view desk.cpl:

Originally posted by qinchun36 at 2009-7-9 09:34:
There is also a very cool and disgusting one, and I haven't found a good solution yet. Those who are not very familiar with operating the computer with the keyboard please don't try it easily:
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rundll32 desk.cpl,UpdateUIfontsDueToDPIchange

You can end the explorer process, but it seems that the font has become a bit larger~
ntsd -c q -pn explorer.exe

This is good, I like it

Originally posted by matlan at 2009-7-9 11:23 PM:

You can end the explorer process, but it seems that the font becomes a bit larger~
ntsd -c q -pn explorer.exe

I feel it's unstable. Sometimes it becomes very large, causing the mouse to be unable to perform any operations. Sometimes the entire screen is filled with window title bars

This is how it looks in Vista

This is all thought of by the owner, amazing.

This post should be a BAT prank,..., ending post

LZ, you're quite boring!! But I admire you!

It seems there might be some input errors. The original "够很 ，很不错" has unclear parts. If it's supposed to be "够狠，很不错" which means "tough enough, very good", then the translation would be "tough enough, very good". But based on the given text as is, maybe it's a bit messy. Let's assume it's "tough enough, very good" for now as a best guess.

Pretty good, very good