win32 写的程序，加入了资源菜单，可运行是没有菜单显示。大侠帮忙！该如何解决

win32 写的程序，加入了资源菜单，可运行是没有菜单显示。大侠帮忙！
同过加入   resource   script   添加的菜单资源，可运行是没有菜单显示，小的实在找不到原因，求大侠帮忙：感激涕零！

.c文件如下：
#   include   <windows.h>
#   include   "resource.h "

LRESULT   CALLBACK   WndProc(HWND,UINT,WPARAM,LPARAM);

BOOL   CALLBACK   AboutDlgProc(HWND,UINT,WPARAM,LPARAM);

int iCurrentColor   =   IDC_BLACK,iCurrentFigure   =   IDC_RECT;

int   WINAPI   WinMain(HINSTANCE   hInstance,HINSTANCE   hPrevInstance,PSTR   szCmdLine,int   iCmdShow)
{
static   TCHAR szAppName[]   =   TEXT( "About2 ");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;

wndclass.cbClsExtra   =   0;
wndclass.cbWndExtra   =   0;
wndclass.hbrBackground   =   GetStockObject(WHITE_BRUSH);
wndclass.hCursor   =   LoadCursor(NULL,IDC_ARROW);
wndclass.hIcon   =   LoadIcon(hInstance,szAppName);
wndclass.hInstance   =   hInstance;
wndclass.lpfnWndProc   =   WndProc;
wndclass.lpszClassName   =   szAppName;
wndclass.lpszMenuName   =   szAppName;
wndclass.style   =   CS_HREDRAW   |   CS_VREDRAW;

RegisterClass(&wndclass);

hwnd   =   CreateWindow(szAppName,TEXT( "About   Box   Demo   Program "),WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);
ShowWindow(hwnd,iCmdShow);
UpdateWindow(hwnd);

while   (GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return   msg.wParam;
}

void   PaintWindow(HWND   hwnd,int   iColor,int   iFigure)
{
static   COLORREF crColor[8]   =   {RGB(0,0,0),RGB(0,0,255),RGB(0,255,0),RGB(0,255,255),
RGB(255,0,0),RGB(255,0,255),RGB(255,255,0),RGB(255,255,255)};
HBRUSH hBrush;
HDC hdc;
RECT rect;

hdc   =   GetDC(hwnd);
GetClientRect(hwnd,&rect);
hBrush   =   CreateSolidBrush(crColor[iColor   -   IDC_BLACK]);

if   (iFigure   ==   IDC_RECT)
Rectangle(hdc,rect.left,rect.top,rect.right,rect.bottom);
else
Ellipse(hdc,rect.left,rect.top,rect.right,rect.bottom);

DeleteObject(SelectObject(hdc,hBrush));

ReleaseDC(hwnd,hdc);
}

void   PaintTheBlock(HWND   hCtrl,int   iColor,int   iFigure)
{
InvalidateRect(hCtrl,NULL,TRUE);
UpdateWindow(hCtrl);
PaintWindow(hCtrl,iColor,iFigure);
}

LRESULT   CALLBACK   WndProc(HWND   hwnd,UINT   message,WPARAM   wParam,LPARAM   lParam)
{
static   HINSTANCE hInstance;
PAINTSTRUCT ps;

switch(message)
{
case   WM_CREATE:
hInstance   =   ((LPCREATESTRUCT)lParam)-> hInstance;

return   0;
case   WM_COMMAND:
switch(LOWORD(wParam))
{
case   IDM_APP_ABOUT:
if   (DialogBox(hInstance,TEXT( "AboutBox "),hwnd,AboutDlgProc))
InvalidateRect(hwnd,NULL,TRUE);
return   0;
}
break;
case   WM_PAINT:
BeginPaint(hwnd,&ps);
EndPaint(hwnd,&ps);

PaintWindow(hwnd,iCurrentColor,iCurrentFigure);
return   0;
case   WM_DESTROY:
PostQuitMessage(0);
return   0;
}
return   DefWindowProc(hwnd,message,wParam,lParam);