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C/C++ Source or Header  |  1989-02-20  |  4.4 KB  |  119 lines
  1. /*-------------------------------------------------------
  2.    BIGJOB1.C -- Naive approach to lengthy processing job
  3.  --------------------------------------------------------*/
  4.  
  5. #define INCL_WIN
  6. #include <os2.h>
  7. #include "bigjob.h"
  8.  
  9. HAB  hab ;
  10.  
  11. int main (void)
  12.      {
  13.      static CHAR  szClientClass [] = "BigJob1" ;
  14.      static ULONG flFrameFlags = FCF_TITLEBAR      | FCF_SYSMENU  |
  15.                                  FCF_SIZEBORDER    | FCF_MINMAX   |
  16.                                  FCF_SHELLPOSITION | FCF_TASKLIST |
  17.                                  FCF_MENU ;
  18.      HMQ            hmq ;
  19.      HWND           hwndFrame, hwndClient ;
  20.      QMSG           qmsg ;
  21.  
  22.      hab = WinInitialize (0) ;
  23.      hmq = WinCreateMsgQueue (hab, 0) ;
  24.  
  25.      WinRegisterClass (hab, szClientClass, ClientWndProc,
  26.                        CS_SYNCPAINT | CS_SIZEREDRAW, 0) ;
  27.  
  28.      hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
  29.                                      &flFrameFlags, szClientClass,
  30.                                      " - The Bad Program",
  31.                                      0L, NULL, ID_RESOURCE, &hwndClient) ;
  32.  
  33.      WinSendMsg (hwndFrame, WM_SETICON,
  34.                  WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE),
  35.                  NULL) ;
  36.  
  37.      while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
  38.           WinDispatchMsg (hab, &qmsg) ;
  39.  
  40.      WinDestroyWindow (hwndFrame) ;
  41.      WinDestroyMsgQueue (hmq) ;
  42.      WinTerminate (hab) ;
  43.      return 0 ;
  44.      }
  45.  
  46. MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
  47.      {
  48.      static LONG  lCalcRep, lRepAmts [] = { 10, 100, 1000, 10000, 100000 } ;
  49.      static SHORT sCurrentRep = IDM_10 ;
  50.      static SHORT sStatus = STATUS_READY ;
  51.      static ULONG ulElapsedTime ;
  52.      double       A ;
  53.      LONG         lRep ;
  54.  
  55.      switch (msg)
  56.           {
  57.           case WM_COMMAND:
  58.                switch (COMMANDMSG(&msg)->cmd)
  59.                     {
  60.                     case IDM_10:
  61.                     case IDM_100:
  62.                     case IDM_1000:
  63.                     case IDM_10000:
  64.                     case IDM_100000:
  65.                          CheckMenuItem (hwnd, sCurrentRep, FALSE) ;
  66.                          sCurrentRep = COMMANDMSG(&msg)->cmd ;
  67.                          CheckMenuItem (hwnd, sCurrentRep, TRUE) ;
  68.                          return 0 ;
  69.  
  70.                     case IDM_START:
  71.                          EnableMenuItem (hwnd, IDM_START, FALSE) ;
  72.                          EnableMenuItem (hwnd, IDM_ABORT, TRUE) ;
  73.  
  74.                          sStatus = STATUS_WORKING ;
  75.                          WinInvalidateRect (hwnd, NULL, FALSE) ;
  76.  
  77.                          WinSetPointer (HWND_DESKTOP,
  78.                                    WinQuerySysPointer (HWND_DESKTOP,
  79.                                                        SPTR_WAIT, FALSE)) ;
  80.  
  81.                          if (WinQuerySysValue (HWND_DESKTOP, SV_MOUSEPRESENT)
  82.                                    == 0)
  83.                               WinShowPointer (HWND_DESKTOP, TRUE) ;
  84.  
  85.                          lCalcRep = lRepAmts [sCurrentRep - IDM_10] ;
  86.                          ulElapsedTime = WinGetCurrentTime (hab) ;
  87.  
  88.                          for (A = 1.0, lRep = 0 ; lRep < lCalcRep ; lRep++)
  89.                               A = Savage (A) ;
  90.  
  91.                          ulElapsedTime = WinGetCurrentTime (hab) -
  92.                                         ulElapsedTime ;
  93.  
  94.                          if (WinQuerySysValue (HWND_DESKTOP, SV_MOUSEPRESENT)
  95.                                    == 0)
  96.                               WinShowPointer (HWND_DESKTOP, FALSE) ;
  97.  
  98.                          WinSetPointer (HWND_DESKTOP,
  99.                                    WinQuerySysPointer (HWND_DESKTOP,
  100.                                                        SPTR_ARROW, FALSE)) ;
  101.                          sStatus = STATUS_DONE ;
  102.                          WinInvalidateRect (hwnd, NULL, FALSE) ;
  103.  
  104.                          EnableMenuItem (hwnd, IDM_START, TRUE) ;
  105.                          EnableMenuItem (hwnd, IDM_ABORT, FALSE) ;
  106.                          return 0 ;
  107.  
  108.                     case IDM_ABORT:     // Not much we can do here
  109.                          return 0 ;
  110.                     }
  111.                break ;
  112.  
  113.           case WM_PAINT:
  114.                PaintWindow (hwnd, sStatus, lCalcRep, ulElapsedTime) ;
  115.                return 0 ;
  116.           }
  117.      return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
  118.      }
  119.