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Index > Windows > SHBrowseForFolder usage

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zhak



Joined: 12 Apr 2005
Posts: 490
Location: Belarus
zhak
When I define global BROWSEINFO structure everything is ok, but when i try to use a local one:
Code:
proc DlgNewProjectProc, hDlg, uMsg, wParam, lParam
.bi BROWSEINFO
.buf rb 512

    enter
    ...
    


SHBrowseForFolder crushes. Why?
I set all the values for the struct just before the API call:
Code:
    lea ebx, [.bi]
    mov eax, [hDlg]
    mov [ebx+BROWSEINFO.hwndOwner], eax
    mov [ebx+BROWSEINFO.pidlRoot], 0
    lea edi, [.buf]
    mov [ebx+BROWSEINFO.pszDisplayName], edi
    mov [ebx+BROWSEINFO.lpszTitle], 0
    mov [ebx+BROWSEINFO.ulFlags], 0
    mov [ebx+BROWSEINFO.lpfn], 0
    mov [ebx+BROWSEINFO.lParam], 0
    mov [ebx+BROWSEINFO.iImage], 0
    push ebx
    call [SHBrowseForFolder]
    


Another question is how to free an item id list after everything is processed?
Post 29 Apr 2005, 22:07
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shoorick



Joined: 25 Feb 2005
Posts: 1608
Location: Ukraine
shoorick
maybe this will help


Description:
Download
Filename: browseff.zip
Filesize: 3.36 KB
Downloaded: 93 Time(s)


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Post 30 Apr 2005, 00:38
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coconut



Joined: 02 Apr 2004
Posts: 326
Location: usa
coconut
preserving registers properly?
Post 30 Apr 2005, 00:45
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shoorick



Joined: 25 Feb 2005
Posts: 1608
Location: Ukraine
shoorick
this even better:
Code:
    invoke CoInitialize,0
    invoke SHBrowseForFolder,ebx
    test eax,eax
    jz @F
    push eax
    invoke SHGetPathFromIDList,eax,edi
    invoke CoTaskMemFree
    invoke SetDlgItemText,[hDlg],E_UPPER,edi
@@:     
    
Post 30 Apr 2005, 02:36
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zhak



Joined: 12 Apr 2005
Posts: 490
Location: Belarus
zhak
Thanks a lot, shoorick
It was crushing because of INT3, but I cannot understand why, because this interrupt was set in the other message handling routine (EN_UPDATE). And SHBrowseForFolder is called from BN_CLICKED section. Hmm... Maybe it is Olly's bug? SoftICE don't recognize this error. I'll test the circumstances better to find out what is wrong...
Post 30 Apr 2005, 09:52
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shoorick



Joined: 25 Feb 2005
Posts: 1608
Location: Ukraine
shoorick
you should use int3 instead of int 3 to debug your code...
i use this simple macro:

Code:
macro deb 
{       push eax 
        invoke IsDebuggerPresent 
        test eax,eax 
        pop eax 
        jz .nodeb 
        int3 
.nodeb: 
} 
    
Post 30 Apr 2005, 12:54
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