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callbackhints

Okey i am an beginner.............
Why do only my rectangle show up when i also want to see my metafile??
Do my callback function miss someting or .............
The funny part if there is one is that i can see my metafile when running the application in Microsoft Developer Studio but not outside it and i dont know why??


Here is some code

/*
 * Globals (file global)
 */
static HANDLE hModKarta ;





//
// Function ModkartaWndProc
//
LRESULT CALLBACK ModkartaWndProc( HWND hWnd, UINT uMess, WPARAM wParam,
                                  LPARAM lParam ) {

   /*
    * Lokala variabler.
    */
   static HCURSOR   hArrowCursor;
   static HCURSOR   hWaitCursor;
   static HCURSOR   hCursor;
   PAINTSTRUCT      ps;
   HDC              hDC;
   INT              ix;
   HPEN             RED_PEN;

   /*
    * Behandla meddelanden.
    */
   switch( uMess ) {

      case WM_CREATE:

         /*
          * Initieringar.
          */
         hArrowCursor = LoadCursor( hMainInstance, IDC_ARROW );
         hWaitCursor  = LoadCursor( hMainInstance, IDC_WAIT );
         hCursor      = hArrowCursor;

         break;

      case WM_PAINT:

         /*
          * Börja uppdatering av klientarean.
          */
         hDC=BeginPaint( hWnd, (LPPAINTSTRUCT)&ps );

         /*
          * Rita kartan.
          */
         SetMapMode( hDC, MM_ANISOTROPIC );
         SetViewportExtEx( hDC, 272, 272, NULL );
         PlayMetaFile( hDC, hModKarta );

         /*
          * Beräkna positionen för kartmarkören.
          */
         ModData[nScreen].maprect.left = ModData[nScreen].cursor.x -
                                         ( KARTRUTA_250X * ModData[nScreen].skala ) / 2;

         ModData[nScreen].maprect.top = ModData[nScreen].cursor.y -
                                        ( KARTRUTA_250Y * ModData[nScreen].skala ) / 2;

         ModData[nScreen].maprect.right = ModData[nScreen].maprect.left+
                                          ( KARTRUTA_250X * ModData[nScreen].skala );

         ModData[nScreen].maprect.bottom = ModData[nScreen].maprect.top+
                                           ( KARTRUTA_250Y * ModData[nScreen].skala );

         /*
          * Rita kartmarkör.
          */
         SetMapMode( hDC, MM_TEXT );

         SelectObject( hDC, GetStockObject( NULL_BRUSH ) );
   
         RED_PEN = CreatePen( PS_SOLID, 0, RGB(255,0,0));
         SelectObject( hDC, RED_PEN );

         Rectangle( hDC, ModData[nScreen].maprect.left, ModData[nScreen].maprect.top,
                         ModData[nScreen].maprect.right, ModData[nScreen].maprect.bottom );

         /*
          * Avsluta uppdatering av klientarean.
          */
         EndPaint( hWnd, (LPPAINTSTRUCT)&ps );

         /*
          * Äterstall standardmarkör.
          */
         SetCursor( hArrowCursor );

         break;

      case WM_MOUSEMOVE:

         SetCursor( hCursor );

         break;

      case WM_LBUTTONDOWN:

         /*
          * Sätt väntelage och timglasmarkör.
          */
         SetCursor( hWaitCursor );

         ModData[nScreen].cursor.x = LOWORD( lParam );
         ModData[nScreen].cursor.y = HIWORD( lParam );

         ModData[nScreen].automod = FALSE;
         ModData[nScreen].mod = KARTAFRYS;

         /*
          * Sätt värde till rflmem.
          */
//         lpIOS->MapInfo.MapMode[nScreen] = ModData[nScreen].mod;

         /*
          * Beräkna kartrektangel.
          */
         CalcMapCenter();

         /*
          * Markera rad "KARTFRYS" i listrutan.
          */
         EnableWindow( Children[ID_MODLISTA], TRUE );
         SendMessage( Children[ID_MODLISTA], LB_SELECTSTRING, -1,
                      (LPARAM) (LPCTSTR) ( lpModLista[ModData[nScreen].mod] ) );

         /*
          * Sätt AUTO/MANUELL-knappens läge till MANUELL.
          */
         SendMessage( Children[BT_MANAUTO], WM_SETSTATE, ACTIVATE,
                      MAKELONG(TRUE, BN_R_DOWN) );

         /*
          * Om Skärm 2 så inaktivera TILS_GRID/PAR_GRID valen.
          */
         if ( nScreen == MONITOR2 ) {

            ix = SendMessage( Children[ID_MODLISTA], LB_FINDSTRING, -1,
                              (LPARAM) (LPCTSTR) ( lpModLista[TILS_GRID] ) );

            if (ix != -1 ) {

               SendMessage( Children[ID_MODLISTA], LB_DELETESTRING, (WPARAM) ix, 0 );
               SendMessage( Children[ID_MODLISTA], LB_DELETESTRING, (WPARAM) ix, 0 );

            }

         }

         /*
          * Markera att snabbval inte gäller.
          */
//       if ( lpIOS->SimType != ST_SUL ){

            if ( nScreen == MONITOR2 ) {
               
               ShowWindow( Children[ID_EDIT1], SW_HIDE );

            }
            else {

               ShowWindow( Children[ID_EDIT2], SW_HIDE );
            }

//       }

         /*
          * Begär omritning av fönstret.
          */
         InvalidateRect( hWnd, NULL, FALSE );

         /*
          * Posta meddelande till KARTA.
          */
//       if ( ModData[nScreen].mod == KARTAFRYS ) {

//          lpIOS->MapInfo.MapCenterX[nScreen] = ModData[nScreen].mapcenter.x;
//          lpIOS->MapInfo.MapCenterY[nScreen] = ModData[nScreen].mapcenter.y;

//       }

         if ( !DlgChanged ) {
           
            /*
             * Byt till gul markör.
             */
//            SetChangedCursor();
            DlgChanged = TRUE;

         }

         break;

      default:

         return( DefWindowProc( hWnd, uMess, wParam, lParam ) );

         break;
   }

return( (LONG)NULL );

}





//
// Function CreateModKartaWnd
//
HWND CreateModKartaWnd( HANDLE hInstance, HWND hParentWnd, int ID ) {

   /*
    * Lokala variabler.
    */
   WNDCLASSEX   WC;
   HWND         hWnd;

   /*
    * Läs in metafil.
    */
   hModKarta = GetMetaFile( "..\\..\\..\\data\\modmap.wmf" );


   /*
    * Modstyrning-dialogrutans klass
    */
   WC.cbSize        = sizeof(WNDCLASSEX);
   WC.style         = 0;
   WC.lpfnWndProc   = ModkartaWndProc;
   WC.cbClsExtra    = 0;
   WC.cbWndExtra    = 0;
   WC.hInstance     = hInstance;
   WC.hIcon         = NULL;
   WC.hCursor       = NULL;
   WC.hbrBackground = NULL;
   WC.lpszMenuName  = "";
   WC.lpszClassName = "MODKARTA";
   WC.hIconSm       = NULL;                

   /*
    * Registrera fönsterklass.
    */
   if ( RegisterClassEx( &WC ) ) {

      /*
       * Skapa fönster.
       */
      hWnd = CreateWindowEx(
         0,                     /* Utbyggd fönsterfunktion */
         "MODKARTA",            /* Fönster klass */
         "",                    /* Fönster titel */
         WS_CHILD | WS_VISIBLE, /* Fönstertyp */
         615,                   /* X-position */
         5,                     /* Y-position */
         272,                   /* Storlek X */
         272,                   /* Storlek Y */
         hParentWnd,            /* Förälder-fönster */
         NULL,                  /* Ingen meny */
         hInstance,             /* Instans som skapar detta fönster*/
         NULL                   /* Parametrar */
      );
     
      if ( hWnd == NULL )
         return( NULL );
               
   }
   else
      return( NULL );

return( hWnd );

}  /* CreateModKartaWnd() */

0
ThomasLindberg
Asked:
ThomasLindberg
  • 6
  • 3
1 Solution
 
nietodCommented:
how is hModKarta initialized?
0
 
ThomasLindbergAuthor Commented:
Edited text of question
0
 
ThomasLindbergAuthor Commented:
Edited text of question
0
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
ThomasLindbergAuthor Commented:
Edited text of question
0
 
ThomasLindbergAuthor Commented:
I have mailed you the metfile i am using just in case there is a mismatch that i am not awere of.
0
 
nietodCommented:
>> The funny part if there is one is that i can see my metafile when
>> running the application in Microsoft Developer Studio but
>> not outside it and i dont know why??
That is important.  what is different between the two circumstances?

Are you running from the same path?  If not you might not find the metafile (you never check to see it is successfully opened).
When you run it outside of developer studio, are you running a debug version or a release version?  What happens when you run the other one from outside?  what happens when you run the other one from inside?


0
 
ThomasLindbergAuthor Commented:
                    Hello nietod!
I am running an debug version and it workes pefect
when i move it to the right path.

Thank you.

0
 
nietodCommented:
Then the real problem is the fact that you try to open a file (metafile) and don't check that you actually opened it.  That is a bad idea.  Since the file is not actually part of the program (like a stored resource) the user can delete it or move it.  You really should check that you get the file open.

Another suggestion, If there is going to multiple instances of windows that use the above window procedure, each time one of the windows is created you will load a new copy of the cursors (loosing track of the old copy which will hang around in memory).  Insteady you should do that sort of initialization in your main() or from a procedure called one time from main(), or you can do it when the statics are declared, like

static HCURSOR  hArrowCursor = LoadCursor( hMainInstance, IDC_ARROW );

This insures that they are initialized only once.
0
 
ThomasLindbergAuthor Commented:
I think my question is completly answered..

Thomas
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

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