/*----------------------------------------------------------------------------
|
|  main.c
|
 ---------------------------------------------------------------------------*/


#include "precomp.h"
#include "demo.h"
#include "resource.h"


// Internal functions
static L_BOOL RegisterAllWindows( L_BOOL );
static L_BOOL CreateFrameWindow( L_VOID );


/*----------------------------------------------------------------------------
|
|  WinMain
|
 ---------------------------------------------------------------------------*/
L_INT EXT_FUNCTION
WinMain
(
   HINSTANCE   hInstance,
   HINSTANCE   hPrevInstance,
   L_CHAR     *pCmdLine,
   L_INT       nCmdShow
)
{
   HACCEL   hAccelFrame;
   HACCEL   hAccelChild;
   MSG      Msg;

   UNREFERENCED_PARAMETER( hPrevInstance );
   UNREFERENCED_PARAMETER( pCmdLine );

   g_hInstance = hInstance;

   UNLOCKSUPPORT();
   if( L_IsSupportLocked( L_SUPPORT_VECTOR ) )
   {
      MessageBox( NULL, TEXT("Vector support is locked!"), TEXT("Error"), MB_ICONSTOP );
      return 1;
   }

   if( !RegisterAllWindows( TRUE ) )
   {
      ShowMessageBox( TRUE, MB_ICONSTOP, NULL );
      return 1;
   }

   g_hMenuFrame = LoadMenu( g_hInstance, MAKEINTRESOURCE( IDM_FRAME ) );

   if( g_hMenuFrame )
      g_hMenuFrameWindow = GetSubMenu( g_hMenuFrame, MENU_FILE_POS );

   g_hMenuChild = LoadMenu( g_hInstance, MAKEINTRESOURCE( IDM_CHILD ) );

   if( g_hMenuChild )
      g_hMenuChildWindow = GetSubMenu( g_hMenuChild, MENU_WINDOW_POS );

   g_hMenuObjectPopup = LoadMenu( g_hInstance, MAKEINTRESOURCE( IDM_OBJECT ) );
   if( g_hMenuObjectPopup )
      g_hMenuObjectPopupWindow = GetSubMenu( g_hMenuObjectPopup, 0 );

   hAccelFrame = LoadAccelerators( g_hInstance, MAKEINTRESOURCE( IDA_FRAME ) );
   hAccelChild = LoadAccelerators( g_hInstance, MAKEINTRESOURCE( IDA_CHILD ) );

   if( !g_hMenuFrame || !g_hMenuFrameWindow ||
       !g_hMenuChild || !g_hMenuChildWindow ||
       !hAccelFrame || !hAccelChild )
   {
      ShowMessageBox( TRUE, MB_ICONSTOP, NULL );
      return 1;
   }

   if( !CreateFrameWindow() )
   {
      ShowMessageBox( TRUE, MB_ICONSTOP, NULL );
      return 1;
   }

   ShowWindow( g_hWndFrame, nCmdShow );
   UpdateWindow( g_hWndFrame );

   while( GetMessage( &Msg, NULL, 0, 0 ) )
   {
      if( !TranslateMDISysAccel( g_hWndClient, &Msg ) &&
          !TranslateAccelerator( g_hWndFrame, hAccelFrame, &Msg ) &&
          !TranslateAccelerator( g_hWndFrame, hAccelChild, &Msg ) )
      {
         TranslateMessage( &Msg );
         DispatchMessage( &Msg );
      }
   }

   RegisterAllWindows( FALSE );

   return Msg.wParam;
}


/*----------------------------------------------------------------------------
|
|  RegisterAllWindows
|
 ---------------------------------------------------------------------------*/
static L_BOOL
RegisterAllWindows
(
   L_BOOL   bRegister
)
{
   WNDCLASSEX  WndClass;

   if( bRegister )
   {
      WndClass.cbSize         = sizeof( WNDCLASSEX );
      WndClass.style          = 0;
      WndClass.lpfnWndProc    = FrameWindowProc;
      WndClass.cbClsExtra     = 0;
      WndClass.cbWndExtra     = 0;
      WndClass.hInstance      = g_hInstance;
      WndClass.hIcon          = LoadIcon( g_hInstance, MAKEINTRESOURCE( IDI_FRAME ) );
      WndClass.hCursor        = LoadCursor( NULL, IDC_ARROW );
      WndClass.hbrBackground  = GetStockObject( GRAY_BRUSH );
      WndClass.lpszMenuName   = NULL;
      WndClass.lpszClassName  = g_szFrameClass;
      WndClass.hIconSm        = NULL;

      if( !RegisterClassEx( &WndClass ) )
         return FALSE;

      WndClass.cbSize         = sizeof( WNDCLASSEX );
      WndClass.style          = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
      WndClass.lpfnWndProc    = ChildWindowProc;
      WndClass.cbClsExtra     = 0;
      WndClass.cbWndExtra     = 0;
      WndClass.hInstance      = g_hInstance;
      WndClass.hIcon          = LoadIcon( g_hInstance, MAKEINTRESOURCE( IDI_CHILD ) );
      WndClass.hCursor        = LoadCursor( g_hInstance, MAKEINTRESOURCE( IDC_CHILD ) );
      WndClass.hbrBackground  = (HBRUSH) ( COLOR_WINDOW + 1 );
      WndClass.lpszMenuName   = NULL;
      WndClass.lpszClassName  = g_szChildClass;
      WndClass.hIconSm        = NULL;

      if( !RegisterClassEx( &WndClass ) )
         return FALSE;
   }
   else
   {
      UnregisterClass( g_szFrameClass, g_hInstance );
      UnregisterClass( g_szChildClass, g_hInstance );
   }

   return TRUE;
}


/*----------------------------------------------------------------------------
|
|  CreateFrameWindow
|
 ---------------------------------------------------------------------------*/
static L_BOOL
CreateFrameWindow
(
   L_VOID
)
{
   g_hWndFrame = CreateWindowEx( 0L,
                                 g_szFrameClass,
                                 g_szTitle,
                                 WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
                                 CW_USEDEFAULT,
                                 0,
                                 CW_USEDEFAULT,
                                 0,
                                 NULL,
                                 g_hMenuFrame,
                                 g_hInstance,
                                 NULL );
   if( !g_hWndFrame )
      return FALSE;

   return TRUE;
}


/* EOF ----------------------------------------------------------------------*/