reactos/win32ss/user/ntuser/dce.h

   1 #pragma once
   2
   3 /* DC hook codes */
   4 #define DCHC_INVALIDVISRGN      0x0001
   5 #define DCHC_DELETEDC           0x0002
   6
   7 #define DCHF_INVALIDATEVISRGN   0x0001
   8 #define DCHF_VALIDATEVISRGN     0x0002
   9
  10 typedef enum
  11 {
  12     DCE_CACHE_DC,   /* This is a cached DC (allocated by USER) */
  13     DCE_CLASS_DC,   /* This is a class DC (style CS_CLASSDC) */
  14     DCE_WINDOW_DC   /* This is a window DC (style CS_OWNDC) */
  15 } DCE_TYPE, *PDCE_TYPE;
  16
  17 typedef struct tagDCE
  18 {
  19     LIST_ENTRY   List;
  20     HDC          hDC;
  21     HWND         hwndCurrent;
  22     PWND         pwndOrg;
  23     PWND         pwndClip;
  24     PWND         pwndRedirect;
  25     HRGN         hrgnClip;
  26     HRGN         hrgnClipPublic;
  27     HRGN         hrgnSavedVis;
  28     DWORD        DCXFlags;
  29     PTHREADINFO  ptiOwner;
  30     PPROCESSINFO ppiOwner;
  31     struct _MONITOR* pMonitor;
  32 } DCE, *PDCE;
  33
  34 /* internal DCX flags, see psdk/winuser.h for the rest */
  35 #define DCX_DCEEMPTY        0x00000800
  36 #define DCX_DCEBUSY         0x00001000
  37 #define DCX_DCEDIRTY        0x00002000
  38 #define DCX_LAYEREDWIN      0x00004000
  39 #define DCX_DCPOWNED        0x00008000
  40 #define DCX_NOCLIPCHILDREN  0x00080000
  41 #define DCX_NORECOMPUTE     0x00100000
  42 #define DCX_INDESTROY       0x00400000
  43
  44 INIT_FUNCTION NTSTATUS NTAPI InitDCEImpl(VOID);
  45 PDCE FASTCALL DceAllocDCE(PWND Window, DCE_TYPE Type);
  46 HWND FASTCALL IntWindowFromDC(HDC hDc);
  47 PDCE FASTCALL DceFreeDCE(PDCE dce, BOOLEAN Force);
  48 void FASTCALL DceEmptyCache(void);
  49 VOID FASTCALL DceResetActiveDCEs(PWND Window);
  50 void FASTCALL DceFreeClassDCE(HDC);
  51 HWND FASTCALL UserGethWnd(HDC,PWNDOBJ*);
  52 void FASTCALL DceFreeWindowDCE(PWND);
  53 void FASTCALL DceFreeThreadDCE(PTHREADINFO);
  54 VOID FASTCALL DceUpdateVisRgn(DCE *Dce, PWND Window, ULONG Flags);
  55 DCE* FASTCALL DceGetDceFromDC(HDC hdc);