OpenEuphoria

Re: Structs Question

• Posted by euman at bellsouth.net Jul 14, 2001
• 375 views

Never mind I figured it out.
if I free(iParent) before I send this message
hParent = c_func(SendMessage,{TreeView1,TVM_INSERTITEM, 0, tvstruct})
there wont be any text for the root item.

Now how in hek is this? 

I poked the text into the structure then free'd the allocated_string before
I sent the message and it doesnt work and when I move the free()
after the message......hmmm Im at a loss. (beats me) but it works now.

Euman
euman at bellsouth.net



> 
> Thanks Derek for takeing a look!
> 
> I already tried setting this up as below and it works showing
> the parent and children and the pszText of the children and
> the order of the tree is correct but,
> the parent (above) pszText does not show, in other words
> the parent doesnt have a name.
> 
> I thought I might be missing something here.
> 
> This is where Im looseing the text name for the root when I send
> this message.
> 
> hParent = c_func(SendMessage,{TreeView1,TVM_INSERTITEM, 0, tvstruct})
> 
> and this doesnt make any since to me.
> 
> Here it is again with changes>...
> 
> 
> hImageList = c_func(xImageList_Create,{16,16,ILC_COLOR16,2,10})
> 
> hBitmap = LoadImage("list.bmp", IMAGE_BITMAP)
> junk = c_func(xImageList_Add,{hImageList,hBitmap,NULL})
> c_proc(xDeleteObject, {hBitmap})
> 
> junk = c_func(SendMessage,{TreeView1,TVM_SETIMAGELIST,0,hImageList})
> 
> tvstruct = allocate_struct( SIZEOF_tvstruct )
> 
> poke4( tvstruct + TVINSERTSTRUCT_hParent,NULL)
> poke4( tvstruct + TVINSERTSTRUCT_hInsertAfter,TVI_ROOT)
> 
> poke4( tvstruct +
> TVINSERTSTRUCTITEM_mask,or_all({TVIF_TEXT+TVIF_IMAGE+TVIF_SELECTEDIMAGE}))
> 
> iParent = allocate_string("Parent Item")
> poke4( tvstruct + TVINSERTSTRUCTITEM_pszText,iParent)
> poke4( tvstruct + TVINSERTSTRUCTITEM_iImage,0)
> poke4( tvstruct + TVINSERTSTRUCTITEM_iSelectedImage,1)
> free(iParent)
> 
> hParent = c_func(SendMessage,{TreeView1,TVM_INSERTITEM, 0, tvstruct})
> 
> poke4( tvstruct + TVINSERTSTRUCT_hParent, hParent)
> poke4( tvstruct + TVINSERTSTRUCT_hInsertAfter,TVI_LAST)
> 
> Child1 = allocate_string("Child One")
> poke4(tvstruct + TVINSERTSTRUCTITEM_pszText,Child1)
> junk = c_func(SendMessage,{TreeView1,TVM_INSERTITEM, 0, tvstruct})
> free(Child1)
> 
> Child2 = allocate_string("Child Two")
> poke4(tvstruct + TVINSERTSTRUCTITEM_pszText,Child2)
> junk = c_func(SendMessage,{TreeView1,TVM_INSERTITEM, 0, tvstruct})
> free(Child2)
> 
> free(tvstruct)
> 
> Euman
> euman at bellsouth.net