I've a problem to retrieve text of an item.
When i expand or collapse an item, i want to get text string.
here is my code :
tvitem TV_ITEM
...
.if WM_NOTIFY
mov edx,lParam
assume edx:ptr NM_TREEVIEW
cmp .hdr.code,TVN_ITEMEXPANDED
jnz @fin
invoke MessageBoxA, hwnd, .itemOld.pszText, 0, 0
assume edx:nothing
...
but it doesn't work.
i've tried with this :
.if WM_NOTIFY
mov edx,lParam
assume edx:ptr NM_TREEVIEW
cmp .hdr.code,TVN_ITEMEXPANDED
jnz @fin
mov tvitem.mask,TVIF_TEXT
invoke SendMessageA, .itemOld.hItem, TVM_GETITEM, 0, addr tvitem
invoke MessageBoxA, hwnd, tvitem.pszText, 0, 0
...
but when i compile i've this error :
"missing operand after unary operator" related to mov tvitem.mask,TVIF_TEXT
it drive me crazy...
oups it is tvitem.imask and not tvitem.mask
but this doesn't work anyway for getting string of an item...:/
hmmm is that really the best method to use? why not send the TVM_GETITEM message?
hmm finally i've used another methode for my app.
my aims is to make a treeview that display directory structure like in explorer.
i post my code, maybe it could help someone but maybe you have already better code:eek: (if so please tell me:))
Contrary than explorer, it build all in one time and take 12 secondes to build all directory on my pc (~2200 directories and 36000 files scanned)
and it take 2.5Mo in my memory (i've 64Mo edo)
code :
.DATA
wfd WIN32_FIND_DATA
tvinsert TV_INSERTSTRUCT
...
.CODE
InitTreeViewItem proc path:DWORD, parent:DWORD
LOCAL hFindFile_:DWORD
invoke FindFirstFileA, path, addr wfd
mov hFindFile_,eax
@nextfile :
invoke FindNextFileA, hFindFile_, addr wfd
cmp eax,0
jz @fin
cmp wfd.dwFileAttributes,FILE_ATTRIBUTE_DIRECTORY
jnz @nextfile
cmp byte ptr , "."
jz @nextfile
push parent
pop tvinsert.hParent
cmp parent,0
jnz @notroot
mov tvinsert.hInsertAfter, TVI_ROOT
mov tvinsert.item.iImage, 0
mov tvinsert.item.iSelectedImage, 1
@next :
mov tvinsert.item.imask, TVIF_TEXT+TVIF_IMAGE+TVIF_SELECTEDIMAGE
mov tvinsert.item.pszText, offset wfd.cFileName
invoke SendMessageA, hTreeView, TVM_INSERTITEM, 0, addr tvinsert
push eax
invoke GlobalAlloc, GPTR, 2048 ;2048 is totally arbitrary i think it's enough :)
mov path_,eax
invoke lstrcpy, path_, path
invoke lstrlen, path_
sub eax,2
mov edi,path_
add edi,eax
mov byte ptr ,"\"
inc edi
mov byte ptr ,0
invoke lstrcat, path_, addr wfd.cFileName
invoke lstrcat, path_, addr StrAll ; in path_ we have "dir1\dir2\etc\*"
pop eax
invoke InitTreeViewItem, path_, eax
invoke GlobalFree, path_
jmp @nextfile
@fin :
invoke FindClose, hFindFile_
ret
@notroot :
mov tvinsert.hInsertAfter, TVI_LAST
jmp @next
InitTreeViewItem endp
Im presently making a TreeView manager class. Such that all theses problems are encapsulated into an object and only a basic interface is invoked to get complex results with your tree. Im almost finished, if your interested in this alternative i can post it when its finished.
Im undecided if i want to include a Linked List within the class to better manage tree information (since it occationally asks for "GetDispInfo". Anythoughts?
If you have no idea what im talking about, download my classes tool and tutorial on how it is used to build a linked list. Its on my web-page (click the HOUSE icon above).
NaN
This message was edited by NaN, on 6/3/2001 10:55:21 PM