win32ss/gdi/ntgdi/misc.h

   1 #pragma once
   2
   3 typedef struct INTENG_ENTER_LEAVE_TAG
   4   {
   5   /* Contents is private to EngEnter/EngLeave */
   6   SURFOBJ *DestObj;
   7   SURFOBJ *OutputObj;
   8   HBITMAP OutputBitmap;
   9   CLIPOBJ *TrivialClipObj;
  10   RECTL DestRect;
  11   BOOL ReadOnly;
  12   } INTENG_ENTER_LEAVE, *PINTENG_ENTER_LEAVE;
  13
  14 extern BOOL APIENTRY IntEngEnter(PINTENG_ENTER_LEAVE EnterLeave,
  15                                 SURFOBJ *DestObj,
  16                                 RECTL *DestRect,
  17                                 BOOL ReadOnly,
  18                                 POINTL *Translate,
  19                                 SURFOBJ **OutputObj);
  20
  21 extern BOOL APIENTRY IntEngLeave(PINTENG_ENTER_LEAVE EnterLeave);
  22
  23 extern HGDIOBJ StockObjects[];
  24 extern USHORT gusLanguageID;
  25
  26 USHORT FASTCALL UserGetLanguageID(VOID);
  27 PVOID APIENTRY HackSecureVirtualMemory(IN PVOID,IN SIZE_T,IN ULONG,OUT PVOID *);
  28 VOID APIENTRY HackUnsecureVirtualMemory(IN PVOID);
  29
  30 NTSTATUS
  31 NTAPI
  32 RegOpenKey(
  33     LPCWSTR pwszKeyName,
  34     PHKEY phkey);
  35
  36 NTSTATUS
  37 NTAPI
  38 RegQueryValue(
  39     IN HKEY hkey,
  40     IN PCWSTR pwszValueName,
  41     IN ULONG ulType,
  42     OUT PVOID pvData,
  43     IN OUT PULONG pcbValue);
  44
  45 VOID
  46 NTAPI
  47 RegWriteSZ(HKEY hkey, PWSTR pwszValue, PWSTR pwszData);
  48
  49 VOID
  50 NTAPI
  51 RegWriteDWORD(HKEY hkey, PWSTR pwszValue, DWORD dwData);
  52
  53 BOOL
  54 NTAPI
  55 RegReadDWORD(HKEY hkey, PWSTR pwszValue, PDWORD pdwData);
  56
  57 VOID FASTCALL
  58 SetLastNtError(
  59   NTSTATUS Status);
  60
  61 typedef struct _GDI_POOL *PGDI_POOL;
  62
  63 PGDI_POOL
  64 NTAPI
  65 GdiPoolCreate(
  66     ULONG cjAllocSize,
  67     ULONG ulTag);
  68
  69 VOID
  70 NTAPI
  71 GdiPoolDestroy(PGDI_POOL pPool);
  72
  73 PVOID
  74 NTAPI
  75 GdiPoolAllocate(
  76     PGDI_POOL pPool);
  77
  78 VOID
  79 NTAPI
  80 GdiPoolFree(
  81     PGDI_POOL pPool,
  82     PVOID pvAlloc);
  83
  84 FORCEINLINE
  85 VOID
  86 ExAcquirePushLockExclusive(PEX_PUSH_LOCK PushLock)
  87 {
  88     /* Try acquiring the lock */
  89     if (InterlockedBitTestAndSet((PLONG)PushLock, EX_PUSH_LOCK_LOCK_V))
  90     {
  91         /* Someone changed it, use the slow path */
  92         ExfAcquirePushLockExclusive(PushLock);
  93     }
  94 }
  95
  96 FORCEINLINE
  97 BOOLEAN
  98 ExTryAcquirePushLockExclusive(PEX_PUSH_LOCK PushLock)
  99 {
 100     /* Try acquiring the lock */
 101     return !InterlockedBitTestAndSet((PLONG)PushLock, EX_PUSH_LOCK_LOCK_V);
 102 }
 103
 104 FORCEINLINE
 105 VOID
 106 ExReleasePushLockExclusive(PEX_PUSH_LOCK PushLock)
 107 {
 108     EX_PUSH_LOCK OldValue;
 109
 110     /* Unlock the pushlock */
 111     OldValue.Value = InterlockedExchangeAddSizeT((PSIZE_T)PushLock,
 112                                                  -(SSIZE_T)EX_PUSH_LOCK_LOCK);
 113     /* Check if anyone is waiting on it and it's not already waking */
 114     if ((OldValue.Waiting) && !(OldValue.Waking))
 115     {
 116         /* Wake it up */
 117         ExfTryToWakePushLock(PushLock);
 118     }
 119 }
 120
 121 FORCEINLINE
 122 VOID
 123 _ExInitializePushLock(PEX_PUSH_LOCK Lock)
 124 {
 125     *(PULONG_PTR)Lock = 0;
 126 }
 127 #define ExInitializePushLock _ExInitializePushLock
 128
 129 NTSTATUS FASTCALL
 130 IntSafeCopyUnicodeString(PUNICODE_STRING Dest,
 131                          PUNICODE_STRING Source);
 132
 133 NTSTATUS FASTCALL
 134 IntSafeCopyUnicodeStringTerminateNULL(PUNICODE_STRING Dest,
 135                                       PUNICODE_STRING Source);
 136
 137 HBITMAP NTAPI UserLoadImage(PCWSTR);
 138
 139 BOOL NTAPI W32kDosPathNameToNtPathName(PCWSTR, PUNICODE_STRING);
 140