Treeview - TreeView_GetItem()

[geek@02]

Hi, i’m trying to handle the Tree-view’s NM_DBLCLK message, to display the name of the D Clicked item:

LRESULT CALLBACK DlgProc(HWND hWndDlg, UINT Msg, WPARAM wParam, LPARAM lParam)
{
 TVITEM tv;
 HWND hwndTree;
 char msg[MAX_PATH];
 int err;
	
 switch(Msg)
 {
 ...
 case WM_NOTIFY:
  switch(((LPNMHDR) lParam)->code)
  {
   case NM_DBLCLK:
    hwndTree = GetDlgItem(hWndDlg, IDTREE);
    err =TreeView_GetItem(hwndTree,&tv);
    strcpy(msg, "You DCliked on ");
    strcat(msg, tv.pszText);
    MessageBox(NULL,msg, "MSG",MB_OK);
  }
 break;
 ...
}

But tv.pszText returns nothing and err gets zeroed. Please help to fix it.
Thanx.

[knutso]

Before you run TreeView_GetItem() you have to fill in the tv struct:

	TVHITTESTINFO hti;
	POINT p1;
	char achBuf[100];

	GetCursorPos(&p1);
	hti.flags=TVHT_ONITEM;
	memcpy(&hti.pt, &p1, sizeof(POINT));
	ScreenToClient(hwndTree, &hti.pt);

	ZeroMemory(&tv, sizeof(TVITEM));
	tv.hItem=(HTREEITEM)TreeView_HitTest(hwndTree, &hti);
	tv.cchTextMax=100;
	tv.pszText=achBuf;
	tv.mask=TVIF_TEXT|TVIF_HANDLE;
	TreeView_GetItem(hwndTree,&tv)

[geek@02]

Thanx