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 extern CRITICAL_SECTION gcsClientObjLinks;
  14
  15 /*
  16  * GDI32.DLL does have an entry point for disable threadlibrarycall,. The initialization is done by a call
  17  * to GdiDllInitialize(). This call is done from the entry point of USER32.DLL.
  18  */
  19 BOOL
  20 WINAPI
  21 DllMain (
  22     HANDLE  hDll,
  23     DWORD   dwReason,
  24     LPVOID  lpReserved)
  25 {
  26     switch (dwReason)
  27     {
  28     case DLL_PROCESS_ATTACH :
  29         DisableThreadLibraryCalls(hDll);
  30         break;
  31
  32     default:
  33         break;
  34     }
  35     return TRUE;
  36 }
  37
  38
  39 VOID
  40 WINAPI
  41 GdiProcessSetup (VOID)
  42 {
  43     hProcessHeap = GetProcessHeap();
  44
  45     /* map the gdi handle table to user space */
  46     GdiHandleTable = NtCurrentTeb()->ProcessEnvironmentBlock->GdiSharedHandleTable;
  47     GdiSharedHandleTable = NtCurrentTeb()->ProcessEnvironmentBlock->GdiSharedHandleTable;
  48     GdiDevCaps = &GdiSharedHandleTable->DevCaps;
  49     CurrentProcessId = NtCurrentTeb()->ClientId.UniqueProcess;
  50     GDI_BatchLimit = (DWORD) NtCurrentTeb()->ProcessEnvironmentBlock->GdiDCAttributeList;
  51     GdiHandleCache = (PGDIHANDLECACHE)NtCurrentTeb()->ProcessEnvironmentBlock->GdiHandleBuffer;
  52     RtlInitializeCriticalSection(&semLocal);
  53     InitializeCriticalSection(&gcsClientObjLinks);
  54 }
  55
  56
  57 /*
  58  * @implemented
  59  */
  60 BOOL
  61 WINAPI
  62 GdiDllInitialize (
  63     HANDLE hDll,
  64     DWORD dwReason,
  65     LPVOID lpReserved)
  66 {
  67     switch (dwReason)
  68     {
  69     case DLL_PROCESS_ATTACH:
  70         GdiProcessSetup ();
  71         break;
  72
  73     case DLL_THREAD_ATTACH:
  74         NtCurrentTeb()->GdiTebBatch.Offset = 0;
  75         NtCurrentTeb()->GdiBatchCount = 0;
  76         break;
  77
  78     default:
  79         return FALSE;
  80     }
  81
  82     // Very simple, the list will fill itself as it is needed.
  83     if(!SetStockObjects)
  84     {
  85         RtlZeroMemory( &stock_objects, NB_STOCK_OBJECTS); //Assume Ros is dirty.
  86         SetStockObjects = TRUE;
  87     }
  88
  89     return TRUE;
  90 }
  91
  92 /* EOF */