From ReactOS

Windows XP version of DCE

typedef struct _DCE
{
/* 000 */ struct _DCE *pdceNext;
/* 004 */ HDC         hdc;
/* 008 */ PWND        pwndOrg;
/* 00c */ PWND        pwndClip;
/* 010 */ HRGN        hrgnClip;
/* 014 */ HRGN        hrgnClipPublic;
/* 018 */ HRGN        hrgnSavedVis;
/* 01c */ FLONG       DCX_flags;
/* 020 */ PTHREADINFO ptiOwner;
/* 024 */ PMONITOR    pMonitor;
} DCE, *PDCE; // Size: 0x28

References

• Windows Symbol files, userkdx.dll, !dso