C winapi TreeView knoten einfügen

[winapiNoob]

hallo,

mach gerde meine ersten gehversuche mit der winapi. kann aber der treeview keine neuen knoten anhängen, verwende code::blocks mit mingw

#include <stdio.h>
#include <windows.h>
#include <commctrl.h>

/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

/*  Make the class name into a global variable  */
char szClassName[ ] = "CodeBlocksWindowsApp";

HTREEITEM AddItemToTree(HWND hwndTV, LPSTR lpszItem, HTREEITEM parent
	, HTREEITEM brother
){
TVITEM tvi;
TVINSERTSTRUCT tvins;
HTREEITEM hItem;

  tvi.mask = TVIF_TEXT;
  tvi.pszText = lpszItem;
  tvi.cchTextMax = lstrlen(lpszItem);

  // die Insert-Struktur wird vorbereitet
  tvins.item = tvi;
  if (brother) {
    tvins.hInsertAfter = brother;
  } else {
    tvins.hInsertAfter = TVI_FIRST;
  }
  if (parent==0) {
    tvins.hParent = TVI_ROOT;
  } else {
    tvins.hParent = parent;
  }

  // Nachricht zum Einbinden an das Kontrollelement versenden
  hItem = (HTREEITEM)SendMessage(hwndTV, TVM_INSERTITEM, 0, (LPARAM)&tvins);
  if(!hItem)
    printf("last error:%d",GetLastError());
  return hItem;
}

int WINAPI WinMain (HINSTANCE hThisInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR lpszArgument,
                     int nCmdShow)
{
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved */
    WNDCLASSEX wincl;        /* Data structure for the windowclass */

    /* The Window structure */
    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
    wincl.cbSize = sizeof (WNDCLASSEX);

    /* Use default icon and mouse-pointer */
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;                 /* No menu */
    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
    wincl.cbWndExtra = 0;                      /* structure or the window instance */
    /* Use Windows's default colour as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

    /* Register the window class, and if it fails quit the program */
    if (!RegisterClassEx (&wincl))
        return 0;

    /* The class is registered, let's create the program*/
    hwnd = CreateWindowEx (
           0,                   /* Extended possibilites for variation */
           szClassName,         /* Classname */
           "Code::Blocks Template Windows App",       /* Title Text */
           WS_OVERLAPPEDWINDOW, /* default window */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window ends up on the screen */
           544,                 /* The programs width */
           375,                 /* and height in pixels */
           HWND_DESKTOP,        /* The window is a child-window to desktop */
           NULL,                /* No menu */
           hThisInstance,       /* Program Instance handler */
           NULL                 /* No Window Creation data */
           );

    /* Make the window visible on the screen */
    ShowWindow(hwnd, nCmdShow);
	//InitCommonControls();
	HWND hTree = CreateWindowEx(0, szClassName , "Tree",
          WS_VISIBLE|WS_CHILD|WS_BORDER| TVS_HASLINES
          |TVS_LINESATROOT|TVS_HASBUTTONS,
          CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
          hwnd, 0, hThisInstance, 0
	);

	//SendMessage(hTree, TVM_DELETEITEM, 0, (LPARAM)TVI_ROOT);

	AddItemToTree(hTree, "hello tree", 0,0);

    /* Run the message loop. It will run until GetMessage() returns 0 */
    while(GetMessage (&messages, NULL, 0, 0))
    {
        /* Translate virtual-key messages into character messages */
        TranslateMessage(&messages);
        /* Send message to WindowProcedure */
        DispatchMessage(&messages);
    }

    /* The program return-value is 0 - The value that PostQuitMessage() gave */
    return messages.wParam;
}

/*  This function is called by the Windows function DispatchMessage()  */

LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)                  /* handle the messages */
    {
        case WM_DESTROY:
            PostQuitMessage (0);       /* send a WM_QUIT to the message queue */
            break;
        default:                      /* for messages that we don't deal with */
            return DefWindowProc (hwnd, message, wParam, lParam);
    }

    return 0;
}

hat jemand eine idee woran das liegen könnte bzw. ein gutes tut für winapi mit ansi c

hab das mal gefunden http://www.willemer.de/informatik/windows/wintree.htm#top aber das will iwie nicht so wie ich

lg winapiNoob

[winapiNoob]

HINSTANCE hinstDll;
    hinstDll = LoadLibrary("comctl32.dll");

    HWND hTree = CreateWindowEx(0, WC_TREEVIEW , "Tree",
          WS_VISIBLE|WS_CHILD|WS_BORDER| TVS_HASLINES
          |TVS_LINESATROOT|TVS_HASBUTTONS,
          CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
          hwnd, 0, hThisInstance, 0
    );

so sollts klappen