wine/dlls/oleaut32/variant.h

122 lines
4.2 KiB
C

/*
* Variant Inlines
*
* Copyright 2003 Jon Griffiths
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "windef.h"
#include "winerror.h"
#include "objbase.h"
#include "oleauto.h"
#include <math.h>
/* Get just the type from a variant pointer */
#define V_TYPE(v) (V_VT((v)) & VT_TYPEMASK)
/* Flags set in V_VT, other than the actual type value */
#define VT_EXTRA_TYPE (VT_VECTOR|VT_ARRAY|VT_BYREF|VT_RESERVED)
/* Get the extra flags from a variant pointer */
#define V_EXTRA_TYPE(v) (V_VT((v)) & VT_EXTRA_TYPE)
/* Missing in Windows but useful VTBIT_* defines */
#define VTBIT_BOOL (1 << VT_BSTR)
#define VTBIT_BSTR (1 << VT_BSTR)
#define VTBIT_DATE (1 << VT_DATE)
#define VTBIT_DISPATCH (1 << VT_DISPATCH)
#define VTBIT_EMPTY (1 << VT_EMPTY)
#define VTBIT_ERROR (1 << VT_ERROR)
#define VTBIT_INT (1 << VT_INT)
#define VTBIT_NULL (1 << VT_NULL)
#define VTBIT_UINT (1 << VT_UINT)
#define VTBIT_UNKNOWN (1 << VT_UNKNOWN)
#define VTBIT_VARIANT (1 << VT_VARIANT)
#define VTBIT_15 (1 << 15) /* no variant type with this number */
/* Size constraints */
#define I1_MAX 0x7f
#define I1_MIN ((-I1_MAX)-1)
#define UI1_MAX 0xff
#define UI1_MIN 0
#define I2_MAX 0x7fff
#define I2_MIN ((-I2_MAX)-1)
#define UI2_MAX 0xffff
#define UI2_MIN 0
#define I4_MAX 0x7fffffff
#define I4_MIN ((-I4_MAX)-1)
#define UI4_MAX 0xffffffff
#define UI4_MIN 0
#define I8_MAX (((LONGLONG)I4_MAX << 32) | UI4_MAX)
#define I8_MIN ((-I8_MAX)-1)
#define UI8_MAX (((ULONGLONG)UI4_MAX << 32) | UI4_MAX)
#define UI8_MIN 0
#define DATE_MAX 2958465
#define DATE_MIN -657434
#define R4_MAX 3.402823567797336e38
#define R4_MIN 1.40129846432481707e-45
#define R8_MAX 1.79769313486231470e+308
#define R8_MIN 4.94065645841246544e-324
/* Value of sign for a positive decimal number */
#define DECIMAL_POS 0
/* Native headers don't change the union ordering for DECIMAL sign/scale (duh).
* This means that the signscale member is only useful for setting both members to 0.
* SIGNSCALE creates endian-correct values so that we can properly set both at once
* to values other than 0.
*/
#ifdef WORDS_BIGENDIAN
#define SIGNSCALE(sign,scale) (((scale) << 8) | sign)
#else
#define SIGNSCALE(sign,scale) (((sign) << 8) | scale)
#endif
/* Macros for getting at a DECIMAL's parts */
#define DEC_SIGN(d) ((d)->u.s.sign)
#define DEC_SCALE(d) ((d)->u.s.scale)
#define DEC_SIGNSCALE(d) ((d)->u.signscale)
#define DEC_HI32(d) ((d)->Hi32)
#define DEC_MID32(d) ((d)->u1.s1.Mid32)
#define DEC_LO32(d) ((d)->u1.s1.Lo32)
#define DEC_LO64(d) ((d)->u1.Lo64)
#define DEC_MAX_SCALE 28 /* Maximum scale for a decimal */
/* Internal flags for low level conversion functions */
#define VAR_BOOLONOFF 0x0400 /* Convert bool to "On"/"Off" */
#define VAR_BOOLYESNO 0x0800 /* Convert bool to "Yes"/"No" */
#define VAR_NEGATIVE 0x1000 /* Number is negative */
/* The localised characters that make up a valid number */
typedef struct tagVARIANT_NUMBER_CHARS
{
WCHAR cNegativeSymbol;
WCHAR cPositiveSymbol;
WCHAR cDecimalPoint;
WCHAR cDigitSeparator;
WCHAR cCurrencyLocal;
WCHAR cCurrencyLocal2;
WCHAR cCurrencyDecimalPoint;
WCHAR cCurrencyDigitSeparator;
} VARIANT_NUMBER_CHARS;
unsigned int get_type_size(ULONG*, VARTYPE) DECLSPEC_HIDDEN;
BOOL VARIANT_GetLocalisedText(LANGID, DWORD, WCHAR *) DECLSPEC_HIDDEN;
HRESULT VARIANT_ClearInd(VARIANTARG *) DECLSPEC_HIDDEN;
BOOL get_date_format(LCID, DWORD, const SYSTEMTIME *,
const WCHAR *, WCHAR *, int) DECLSPEC_HIDDEN;