mirror of
https://github.com/reactos/reactos.git
synced 2024-07-24 05:08:16 +00:00
108 lines
2.2 KiB
C
108 lines
2.2 KiB
C
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS kernel
|
|
* PURPOSE: User Atom helper routines
|
|
* FILE: subsys/win32k/ntuser/useratom.c
|
|
* PROGRAMER: Filip Navara <xnavara@volny.cz>
|
|
*/
|
|
|
|
#include <win32k.h>
|
|
DBG_DEFAULT_CHANNEL(UserMisc);
|
|
|
|
RTL_ATOM FASTCALL
|
|
IntAddAtom(LPWSTR AtomName)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
PTHREADINFO pti;
|
|
RTL_ATOM Atom;
|
|
|
|
pti = PsGetCurrentThreadWin32Thread();
|
|
if (pti->rpdesk == NULL)
|
|
{
|
|
SetLastNtError(Status);
|
|
return (RTL_ATOM)0;
|
|
}
|
|
|
|
Status = RtlAddAtomToAtomTable(gAtomTable, AtomName, &Atom);
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
return (RTL_ATOM)0;
|
|
}
|
|
return Atom;
|
|
}
|
|
|
|
ULONG FASTCALL
|
|
IntGetAtomName(RTL_ATOM nAtom, LPWSTR lpBuffer, ULONG nSize)
|
|
{
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
PTHREADINFO pti;
|
|
ULONG Size = nSize;
|
|
|
|
pti = PsGetCurrentThreadWin32Thread();
|
|
if (pti->rpdesk == NULL)
|
|
{
|
|
SetLastNtError(Status);
|
|
return 0;
|
|
}
|
|
|
|
Status = RtlQueryAtomInAtomTable(gAtomTable, nAtom, NULL, NULL, lpBuffer, &Size);
|
|
|
|
if (Size < nSize)
|
|
*(lpBuffer + Size/sizeof(WCHAR)) = 0;
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
SetLastNtError(Status);
|
|
return 0;
|
|
}
|
|
return Size;
|
|
}
|
|
|
|
RTL_ATOM FASTCALL
|
|
IntAddGlobalAtom(LPWSTR lpBuffer, BOOL PinAtom)
|
|
{
|
|
RTL_ATOM Atom;
|
|
NTSTATUS Status = STATUS_SUCCESS;
|
|
|
|
Status = RtlAddAtomToAtomTable(gAtomTable, lpBuffer, &Atom);
|
|
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
ERR("Error init Global Atom.\n");
|
|
return 0;
|
|
}
|
|
|
|
if ( Atom && PinAtom ) RtlPinAtomInAtomTable(gAtomTable, Atom);
|
|
|
|
return Atom;
|
|
}
|
|
|
|
DWORD
|
|
APIENTRY
|
|
NtUserGetAtomName(
|
|
ATOM nAtom,
|
|
PUNICODE_STRING pBuffer)
|
|
{
|
|
DWORD Ret;
|
|
WCHAR Buffer[256];
|
|
UNICODE_STRING CapturedName = {0};
|
|
UserEnterShared();
|
|
CapturedName.Buffer = (LPWSTR)&Buffer;
|
|
CapturedName.MaximumLength = sizeof(Buffer);
|
|
Ret = IntGetAtomName((RTL_ATOM)nAtom, CapturedName.Buffer, (ULONG)CapturedName.Length);
|
|
_SEH2_TRY
|
|
{
|
|
RtlCopyMemory(pBuffer->Buffer, &Buffer, pBuffer->MaximumLength);
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
Ret = 0;
|
|
}
|
|
_SEH2_END
|
|
UserLeave();
|
|
return Ret;
|
|
}
|
|
|
|
/* EOF */
|