misc/user.c

   1 /*
   2 static char RCSId[] = "$Id: user.c,v 1.2 1993/07/04 04:04:21 root Exp root $";
   3 static char Copyright[] = "Copyright  Robert J. Amstadt, 1993";
   4 */
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include "atom.h"
   8 #include "gdi.h"
   9 #include "dlls.h"
  10 #include "sysmetrics.h"
  11 #include "menu.h"
  12 #include "dce.h"
  13 #include "dialog.h"
  14 #include "syscolor.h"
  15 #include "win.h"
  16 #include "windows.h"
  17 #include "prototypes.h"
  18 #include "user.h"
  19 #include "message.h"
  20 #include "toolhelp.h"
  21
  22 #define USER_HEAP_SIZE          0x10000
  23
  24 LPSTR USER_Heap = NULL;
  25 WORD USER_HeapSel = 0;
  26
  27
  28 /***********************************************************************
  29  *           GetFreeSystemResources   (USER.284)
  30  */
  31 WORD GetFreeSystemResources( WORD resType )
  32 {
  33     DWORD user, gdi;
  34
  35     switch(resType)
  36     {
  37     case GFSR_USERRESOURCES:
  38         user = GetHeapSpaces( USER_HeapSel );
  39         gdi  = 0xffffffff;
  40         break;
  41
  42     case GFSR_GDIRESOURCES:
  43         gdi  = GetHeapSpaces( GDI_HeapSel );
  44         user = 0xffffffff;
  45         break;
  46
  47     case GFSR_SYSTEMRESOURCES:
  48         user = GetHeapSpaces( USER_HeapSel );
  49         gdi  = GetHeapSpaces( GDI_HeapSel );
  50         break;
  51
  52     default:
  53         return 0;
  54     }
  55     if (user > gdi) return LOWORD(gdi) * 100 / HIWORD(gdi);
  56     else return LOWORD(user) * 100 / HIWORD(user);
  57 }
  58
  59
  60 /***********************************************************************
  61  *           SystemHeapInfo   (TOOLHELP.71)
  62  */
  63 BOOL SystemHeapInfo( SYSHEAPINFO *pHeapInfo )
  64 {
  65     pHeapInfo->wUserFreePercent = GetFreeSystemResources( GFSR_USERRESOURCES );
  66     pHeapInfo->wGDIFreePercent  = GetFreeSystemResources( GFSR_GDIRESOURCES );
  67     pHeapInfo->hUserSegment = USER_HeapSel;
  68     pHeapInfo->hGDISegment  = GDI_HeapSel;
  69     return TRUE;
  70 }
  71
  72
  73 #ifndef WINELIB
  74 /***********************************************************************
  75  *           USER_HeapInit
  76  */
  77 static BOOL USER_HeapInit(void)
  78 {
  79     if (!(USER_HeapSel = GlobalAlloc(GMEM_FIXED,USER_HEAP_SIZE))) return FALSE;
  80     USER_Heap = GlobalLock( USER_HeapSel );
  81     LocalInit( USER_HeapSel, 0, USER_HEAP_SIZE-1 );
  82     return TRUE;
  83 }
  84 #endif
  85
  86 /**********************************************************************
  87  *                                      USER_InitApp
  88  *
  89  * Load necessary resources?
  90  */
  91 int
  92 USER_InitApp(int hInstance)
  93 {
  94     int queueSize;
  95
  96     SpyInit();
  97
  98 #ifndef WINELIB
  99       /* Create USER heap */
 100     if (!USER_HeapInit()) return 0;
 101 #endif
 102
 103       /* Global atom table initialisation */
 104     if (!ATOM_Init()) return 0;
 105
 106       /* GDI initialisation */
 107     if (!GDI_Init()) return 0;
 108
 109       /* Initialize system colors and metrics*/
 110     SYSMETRICS_Init();
 111     SYSCOLOR_Init();
 112
 113       /* Create the DCEs */
 114     DCE_Init();
 115
 116       /* Initialize built-in window classes */
 117     if (!WIDGETS_Init()) return 0;
 118
 119       /* Initialize dialog manager */
 120     if (!DIALOG_Init()) return 0;
 121
 122       /* Initialize menus */
 123     if (!MENU_Init()) return 0;
 124
 125       /* Create system message queue */
 126     queueSize = GetProfileInt( "windows", "TypeAhead", 120 );
 127     if (!MSG_CreateSysMsgQueue( queueSize )) return 0;
 128
 129       /* Create task message queue */
 130     queueSize = GetProfileInt( "windows", "DefaultQueueSize", 8 );
 131     if (!SetMessageQueue( queueSize )) return 0;
 132
 133       /* Create desktop window */
 134     if (!WIN_CreateDesktopWindow()) return 0;
 135
 136 #ifndef WINELIB
 137     /* Initialize DLLs */
 138     InitializeLoadedDLLs(NULL);
 139 #endif
 140
 141     return 1;
 142 }