reactos/lib/user32/misc/dllmain.c

   1 #include <user32.h>
   2 #define NDEBUG
   3 #include <debug.h>
   4
   5 /* FIXME: Belongs to some header. */
   6 BOOL STDCALL GdiDllInitialize(HANDLE, DWORD, LPVOID);
   7 void InitStockObjects(void);
   8 VOID DeleteFrameBrushes(VOID);
   9
  10 extern CRITICAL_SECTION gcsMPH;
  11 static ULONG User32TlsIndex;
  12 HINSTANCE User32Instance;
  13 HWINSTA ProcessWindowStation;
  14
  15 PUSER32_THREAD_DATA
  16 User32GetThreadData()
  17 {
  18   return((PUSER32_THREAD_DATA)TlsGetValue(User32TlsIndex));
  19 }
  20
  21 VOID
  22 InitThread(VOID)
  23 {
  24   PUSER32_THREAD_DATA ThreadData;
  25
  26   ThreadData = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  27                          sizeof(USER32_THREAD_DATA));
  28   TlsSetValue(User32TlsIndex, ThreadData);
  29 }
  30
  31 VOID
  32 CleanupThread(VOID)
  33 {
  34   PUSER32_THREAD_DATA ThreadData;
  35
  36   ThreadData = (PUSER32_THREAD_DATA)TlsGetValue(User32TlsIndex);
  37   HeapFree(GetProcessHeap(), HEAP_ZERO_MEMORY, ThreadData);
  38   TlsSetValue(User32TlsIndex, 0);
  39 }
  40
  41 VOID
  42 Init(VOID)
  43 {
  44   /* Set up the kernel callbacks. */
  45   NtCurrentTeb()->ProcessEnvironmentBlock->KernelCallbackTable[USER32_CALLBACK_WINDOWPROC] =
  46     (PVOID)User32CallWindowProcFromKernel;
  47   NtCurrentTeb()->ProcessEnvironmentBlock->KernelCallbackTable[USER32_CALLBACK_SENDASYNCPROC] =
  48     (PVOID)User32CallSendAsyncProcForKernel;
  49   NtCurrentTeb()->ProcessEnvironmentBlock->KernelCallbackTable[USER32_CALLBACK_LOADSYSMENUTEMPLATE] =
  50     (PVOID)User32LoadSysMenuTemplateForKernel;
  51   NtCurrentTeb()->ProcessEnvironmentBlock->KernelCallbackTable[USER32_CALLBACK_LOADDEFAULTCURSORS] =
  52     (PVOID)User32SetupDefaultCursors;
  53   NtCurrentTeb()->ProcessEnvironmentBlock->KernelCallbackTable[USER32_CALLBACK_HOOKPROC] =
  54     (PVOID)User32CallHookProcFromKernel;
  55
  56   /* Allocate an index for user32 thread local data. */
  57   User32TlsIndex = TlsAlloc();
  58
  59   MenuInit();
  60   MessageInit();
  61
  62   InitializeCriticalSection(&U32AccelCacheLock);
  63   InitializeCriticalSection(&gcsMPH);
  64
  65   GdiDllInitialize(NULL, DLL_PROCESS_ATTACH, NULL);
  66   InitStockObjects();
  67 }
  68
  69 VOID
  70 Cleanup(VOID)
  71 {
  72   GdiDllInitialize(NULL, DLL_PROCESS_DETACH, NULL);
  73
  74   TlsFree(User32TlsIndex);
  75 }
  76
  77
  78
  79 INT STDCALL
  80 DllMain(
  81         PVOID  hinstDll,
  82         ULONG  dwReason,
  83         PVOID  reserved
  84         )
  85 {
  86   switch (dwReason)
  87     {
  88     case DLL_PROCESS_ATTACH:
  89       User32Instance = hinstDll;
  90       hProcessHeap = RtlGetProcessHeap();
  91       Init();
  92       InitThread();
  93       break;
  94     case DLL_THREAD_ATTACH:
  95       InitThread();
  96       break;
  97     case DLL_THREAD_DETACH:
  98       CleanupThread();
  99       break;
 100     case DLL_PROCESS_DETACH:
 101       DeleteFrameBrushes();
 102       CleanupThread();
 103       Cleanup();
 104       break;
 105     }
 106   return(1);
 107 }