🚀 go-pugleaf

"Remy Lebeau \(TeamB\)" <gambit47.no.spam@no.spam.yahoo.com> wrote:
>
>"Michael" <mloz@mail.com> wrote in message
>news:407e3878$1@newsgroups.borland.com...
>
>> The compiler gives this error:
>> Error E2451 tvtest.c 37: Undefined symbol 'item' in function WinMain
>
>Please show a more complete code snippet, and please quote the EXACT error
>message word-for-word.
>
>
>Gambit
>
>
The complete code to reproduce the error is:
<CODE>
#include <windows.h>
/* #define NONAMELESSUNION <-- HAD NO EFFECT */
#include <commctrl.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {

   TVITEM newTreeItem;
   TVINSERTSTRUCT newTreeItemStruct;

   INITCOMMONCONTROLSEX commonControls = {
      sizeof (INITCOMMONCONTROLSEX),
      ICC_BAR_CLASSES | ICC_TREEVIEW_CLASSES | ICC_LISTVIEW_CLASSES};

   /* Initilize Common Controls (for status bar etc) */
   InitCommonControlsEx(&commonControls);

   newTreeItem.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;

   /* Set the text of the item. */
   newTreeItem.pszText = "Item Name";
   newTreeItem.cchTextMax = sizeof(newTreeItem.pszText)/sizeof(newTreeItem.pszText[0]);

   /* Save the heading level in the item's application-defined data area. */
   newTreeItem.lParam = (LPARAM) 0;

   /* Fill out structure info */
   newTreeItemStruct.hInsertAfter = TVI_LAST;
   newTreeItemStruct.hParent = TVI_ROOT;
   newTreeItemStruct.item = newTreeItem;

   return TRUE;
}
</CODE>

The compiler output is:
bcc32 -tW tvtest.c
Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland
tvtest.c:
Error E2451 tvtest.c 37: Undefined symbol 'item' in function WinMain
Warning W8057 tvtest.c 43: Parameter 'hInstance' is never used in function WinMain
Warning W8057 tvtest.c 43: Parameter 'hPrevInstance' is never used in function WinMain
Warning W8057 tvtest.c 43: Parameter 'lpCmdLine' is never used in function WinMain
Warning W8057 tvtest.c 43: Parameter 'nCmdShow' is never used in function WinMain
*** 1 errors in Compile ***

Note: Line 37 is this line newTreeItemStruct.item = newTreeItem;

The fix, as I just posted before seeing this message was to add the following #define's before the includes
#define _WIN32_WINNT 0x0300
#define _WIN32_IE 0x0300
or any _WIN32_IE value below 0x0400

Looking at the commctrl.h file, it appears the compiler does not like the
union definition that is in the structure:
<snip from commctrl.h>
typedef struct tagTVINSERTSTRUCTA {
    HTREEITEM hParent;
    HTREEITEM hInsertAfter;
#if (_WIN32_IE >= 0x0400)
    union
    {
        TVITEMEXA itemex;
        TV_ITEMA  item;
    } DUMMYUNIONNAME;
#else
    TV_ITEMA item;
#endif
} TVINSERTSTRUCTA, FAR *LPTVINSERTSTRUCTA;
</snip>

I hope this is enough information, it does seem unusual for a compiler
to come with header files that it cannot work with

Thanx for the reply

Cheers
-- Michael