OpenEuphoria

RE: SHBrowseForFolder

• Posted by Henri.Goffin at sbs.be Sep 06, 2001
• 441 views

Hi Thomas,

Too bad.
On an NT4 platform i sporadically get a:
"The instruction at 00417608 referenced memory at 455c3a4c. The memory could not
be written"

This seems to occur when the selected folder is deeply nested (say over 4-5
levels) but not always.

Henri

> -----Original Message-----
> From:	Thomas Parslow (PatRat) [SMTP:patrat at rat-software.com]
> Sent:	Thursday, September 06, 2001 11:09 AM
> To:	EUforum
> Subject:	Re: SHBrowseForFolder
> 
> 
> > I too have worked with this API and got bogged down when it came to
> > retrieving the full path from the ITEMIDLIST structure.  Here's the code 
> > up to where I left off (I was having trouble getting the length of the 
> > first item in the list):
> 
> Hi,
> 
> I've modified your code so that it uses SHGetPathFromIDList to
> convert the result (tested and working):
> 
> include win32lib.ew
> with trace
> 
> atom binfo, result,memfolder
> sequence folder
> 
> constant xSHBrowseForFolder = registerw32Function(shell32,
> "SHBrowseForFolder",
> {C_POINTER}, C_POINTER)
> 
> constant xSHGetPathFromIDList =
> registerw32Function(shell32,"SHGetPathFromIDList",{C_ULONG,C_POINTER},C_ULONG)
> 
> global constant
> bfOwner = allot( Long ),
> bfpidlRoot = allot( Long ),
> bfDisplayName = allot( Lpsz ),
> bfTitle = allot( Lpsz ),
> bfFlags = allot( Long ),
> bfFunction = allot( Long ),
> bfParam = allot( Long ),
> bfImage = allot( Long ),
> SIZEOF_BROWSEINFO = allotted_size()
> 
> binfo = acquire_mem(0, SIZEOF_BROWSEINFO)
> 
> store( binfo, bfOwner, 0)
> store( binfo, bfpidlRoot, NULL)
> store( binfo, bfDisplayName, "")
> store( binfo, bfTitle, "Select a Folder")
> store( binfo, bfFlags, NULL)
> store( binfo, bfFunction, NULL)
> store( binfo, bfParam, NULL)
> store( binfo, bfImage, NULL)
> 
> result = w32Func(xSHBrowseForFolder, {binfo})
> 
> memfolder= allocate_string(repeat(512,0))
> if w32Func(xSHGetPathFromIDList,{result,memfolder}) then
>    --the string pointed to by folder now contains the path
>    folder = peek_string(memfolder)
> else
>    folder = ""
> end if
> free(memfolder)
> release_mem(binfo)
> 
> if message_box("Folder: " & folder, "Test", MB_OK) then end if
> 
> Thomas Parslow (PatRat) ICQ #:26359483
> Rat Software
> http://www.rat-software.com/
> Please leave quoted text in place when replying
> 
> 
>