ASM Community

push 0FFFFh  ; TRUE

push 0 ; whole region

push 0 ; desktop handle

call [url=http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/pantdraw_4c32.asp]InvalidateRgn[/url]



push 0 ; desktop handle

call [url=http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/pantdraw_4zef.asp]UpdateWindow[/url]

MASM32

.386

.model flat,stdcall

option casempa: none



include windows.inc

include kernel32.inc

include user32.inc



includelib kernel32.lib

includelib user32.lib



.code

start:

invoke InvalidateRgn, NULL, NULL, TRUE

invoke UpdateWindow, NULL



xor eax,eax

invoke ExitProcess, eax

end start

Try using the handle returned by GetDesktopHandle, instead of 0.

The GetDesktopWindow function returns the handle of the Windows desktop window.

The desktop window covers the entire screen. The desktop window is the area on top

of which all icons and other windows are painted. 



HWND GetDesktopWindow(VOID)

 



Parameters



This function has no parameters. 



Return Values



The return value is the handle of the desktop window. 

Use the above function
to retrieve a DWORD value that you will PUSH instead of the 0 in the PUSH immediately
above the two function calls that Hiroshimator showed you on the first code.

In plain Japanese:

push 0FFFFh  ; TRUE

push 0 ; whole region

push 0 ; desktop handle

call InvalidateRgn



push 0 ; desktop handle

call UpdateWindow

turns into:

call GetDesktopWindow

mov ebx,eax                  ; save handle



push 0FFFFh  ; TRUE

push 0 ; whole region

push eax ; desktop handle

call InvalidateRgn



push ebx ; desktop handle

call UpdateWindow

or a perhaps more elegant:

call GetDesktopWindow

push eax                  ; save handle



push 0FFFFh  ; TRUE

push 0 ; whole region

push eax ; desktop handle

call InvalidateRgn



call UpdateWindow

sorry Maverick, but it still doesn't work;


and I really don't know much about Win32 programming either: Has the problem been solved in that other post?

doesn't seem so?


it might just be the same command (with an appropriate parameter) as the command used to update explorer after file operations, as WinZip for example does after creating a Zip file.


any other help?


thanks all

so SHChangeNotify(SHCNE_ALLEVENTS, SHCNF_IDLIST, lpil, 0) will do it?



could you put that in MASM code for me ...?


thanks in advance

<CTRL+D>
bpx SHChangeNotify
<CTRL+D>
*click on desktop*
<F5>

Didn't break!


aweX <-

:stupid:


I don't really know what to make of that, so...

could you write that as a complete MASM program for me?


like


.586
.model flat,stdcall
option casemap: none

include C:\masm32\include\Windows.inc ;which are needed?
include C:\masm32\include\kernel32.inc
include C:\masm32\include\user32.inc

includelib C:\masm32\lib\kernel32.lib
includelib C:\masm32\lib\user32.lib


.code

start:

call SHChangeNotify ;how to do?

xor eax,eax
invoke ExitProcess, eax

end start

ah yes,


I thought if s.o. knows the answer, it might be a 1 liner (or 3 or 4)



regarding the function call reference: msdn yielded "0 results" when searching for these function names; can you recommend any place to look them up (I suspect I'll be able to make out their call syntax in MASm myself (partly I know, I currently just dont know how to "use" the constants in that function arguments)

:eek: :rolleyes: :tongue: :) :o

thaanky

aweX, send a WM_KEYUP, too and it should work. (I guess :))

Has anyone tried:

invoke SendMessage, 0, WM_COMMAND, WM_REFRESH_DESKTOP, 0

...(edit) doesn't appear to do anything on WinXP.