win32ss/gdi/gdi32/main/dllmain.c

   1 /*
   2  * dllmain.c
   3  */
   4
   5 #include <precomp.h>
   6
   7 extern HGDIOBJ stock_objects[];
   8 BOOL SetStockObjects = FALSE;
   9 PDEVCAPS GdiDevCaps = NULL;
  10 PGDIHANDLECACHE GdiHandleCache = NULL;
  11 BOOL gbLpk = FALSE;
  12 RTL_CRITICAL_SECTION semLocal;
  13
  14 /*
  15  * GDI32.DLL does have an entry point for disable threadlibrarycall,. The initialization is done by a call
  16  * to GdiDllInitialize(). This call is done from the entry point of USER32.DLL.
  17  */
  18 BOOL
  19 WINAPI
  20 DllMain (
  21     HANDLE  hDll,
  22     DWORD   dwReason,
  23     LPVOID  lpReserved)
  24 {
  25     switch (dwReason)
  26     {
  27     case DLL_PROCESS_ATTACH :
  28         DisableThreadLibraryCalls(hDll);
  29         break;
  30
  31     default:
  32         break;
  33     }
  34     return TRUE;
  35 }
  36
  37
  38 VOID
  39 WINAPI
  40 GdiProcessSetup (VOID)
  41 {
  42     hProcessHeap = GetProcessHeap();
  43
  44     /* map the gdi handle table to user space */
  45     GdiHandleTable = NtCurrentTeb()->ProcessEnvironmentBlock->GdiSharedHandleTable;
  46     GdiSharedHandleTable = NtCurrentTeb()->ProcessEnvironmentBlock->GdiSharedHandleTable;
  47     GdiDevCaps = &GdiSharedHandleTable->DevCaps;
  48     CurrentProcessId = NtCurrentTeb()->ClientId.UniqueProcess;
  49     GDI_BatchLimit = (DWORD) NtCurrentTeb()->ProcessEnvironmentBlock->GdiDCAttributeList;
  50     GdiHandleCache = (PGDIHANDLECACHE)NtCurrentTeb()->ProcessEnvironmentBlock->GdiHandleBuffer;
  51     RtlInitializeCriticalSection(&semLocal);
  52 }
  53
  54
  55 /*
  56  * @implemented
  57  */
  58 BOOL
  59 WINAPI
  60 GdiDllInitialize (
  61     HANDLE hDll,
  62     DWORD dwReason,
  63     LPVOID lpReserved)
  64 {
  65     switch (dwReason)
  66     {
  67     case DLL_PROCESS_ATTACH:
  68         GdiProcessSetup ();
  69         break;
  70
  71     case DLL_THREAD_ATTACH:
  72         NtCurrentTeb()->GdiTebBatch.Offset = 0;
  73         NtCurrentTeb()->GdiBatchCount = 0;
  74         break;
  75
  76     default:
  77         return FALSE;
  78     }
  79
  80     // Very simple, the list will fill itself as it is needed.
  81     if(!SetStockObjects)
  82     {
  83         RtlZeroMemory( &stock_objects, NB_STOCK_OBJECTS); //Assume Ros is dirty.
  84         SetStockObjects = TRUE;
  85     }
  86
  87     return TRUE;
  88 }
  89
  90 /* EOF */