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131 lines
7.3 KiB
PHP
131 lines
7.3 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2000,2001 by the Free Pascal development team
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This include file contains the implementation for variants
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support in FPC as far as it is part of the system unit
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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Type
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TVarTypeToElementInfo = Record
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Validbase : Boolean; // COM basetype?
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ValidElement: Boolean; // allowable in varrarray ?
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Size : Longint; // elementsize
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Flags : Word; // see below
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end;
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{ Variant functions }
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function VariantChangeTypeEx(var VargDest: TVarData; const VargSrc: TVarData; LCID: Integer; Flags: Word; VarType: Word): HRESULT; stdcall;
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function VariantClear(var Varg: TVarData): HRESULT; stdcall;
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function VariantCopy(var VargDest: TVarData; const VargSrc: TVarData): HRESULT; stdcall;
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function VariantCopyInd(var VargDest: TVarData; const VargSrc: TVarData): HRESULT; stdcall;
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function VariantInit(var Varg: TVarData): HRESULT; stdcall;
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{ Variant array functions }
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function SafeArrayAccessData(psa: PVarArray; var ppvdata: Pointer): HRESULT; stdcall;
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function SafeArrayAllocData(psa: PVarArray): HRESULT; stdcall;
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function SafeArrayAllocDescriptor(DimCount: longword; var psa: PVarArray): HRESULT; stdcall;
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function SafeArrayCopy(psa: PVarArray; var psaout: PVarArray): HRESULT; stdcall;
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function SafeArrayCopyData(psa, psaOut: PVarArray): HRESULT; stdcall;
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function SafeArrayCreate(VarType, Dim: dword; const Bounds: TVarArrayBoundArray): PVarArray; stdcall;
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function SafeArrayDestroy(psa: PVarArray): HRESULT; stdcall;
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function SafeArrayDestroyData(psa: PVarArray): HRESULT; stdcall;
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function SafeArrayDestroyDescriptor(psa: PVarArray): HRESULT; stdcall;
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function SafeArrayGetDim(psa: PVarArray):HRESULT; stdcall;
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function SafeArrayGetElemsize(psa: PVarArray): LongWord; stdcall;
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function SafeArrayGetElement(psa: PVarArray; Indices: PVarArrayCoorArray; Data: Pointer): HRESULT; stdcall;
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function SafeArrayGetLBound(psa: PVarArray; Dim: longword; var LBound: longint): HRESULT; stdcall;
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function SafeArrayGetUBound(psa: PVarArray; Dim: longword; var UBound: longint): HRESULT; stdcall;
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function SafeArrayLock(psa: PVarArray): HRESULT; stdcall;
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function SafeArrayPtrOfIndex(psa: PVarArray; Indices: PVarArrayCoorArray; var Address: Pointer): HRESULT; stdcall;
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function SafeArrayPutElement(psa: PVarArray; Indices: PVarArrayCoorArray; const Data: Pointer): HRESULT; stdcall;
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function SafeArrayRedim(psa: PVarArray; const NewBound: TVarArrayBound): HRESULT; stdcall;
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function SafeArrayUnaccessData(psa: PVarArray): HRESULT; stdcall;
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function SafeArrayUnlock(psa: PVarArray): HRESULT; stdcall;
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{ Conversion routines NOT in windows oleaut }
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function VariantToSmallInt(const VargSrc : TVarData) : SmallInt;
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function VariantToLongint(const VargSrc : TVarData) : Longint;
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function VariantToShortint(const VargSrc : TVarData) : ShortInt;
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function VariantToCardinal(const VargSrc : TVarData) : Cardinal;
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{$ifndef FPUNONE}
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function VariantToSingle(const VargSrc : TVarData) : Single;
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function VariantToDouble(const VargSrc : TVarData) : Double;
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function VariantToDate(const VargSrc : TVarData) : TDateTime;
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{$endif}
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function VariantToCurrency(const VargSrc : TVarData) : Currency;
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function VariantToBoolean(const VargSrc : TVarData) : Boolean;
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function VariantToByte(const VargSrc : TVarData) : Byte;
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function VariantToInt64(const VargSrc : TVarData ) : Int64;
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function VariantToQWord(const VargSrc : TVarData ) : Qword;
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function VariantToWideString(const VargSrc : TVarData) : WideString;
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function VariantToAnsiString(const VargSrc : TVarData) : AnsiString;
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function VariantToShortString(const VargSrc : TVarData) : ShortString;
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{Debug routines }
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procedure DumpVariant(const VSrc : Variant);
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procedure DumpVariant(const aName: string; const VSrc : Variant);
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procedure DumpVariant(var F : Text; const VSrc : Variant);
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procedure DumpVariant(var F : Text; const aName: string; const VSrc : Variant);
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procedure DumpVariant(const VArgSrc : TVarData);
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procedure DumpVariant(const aName: string; const VArgSrc : TVarData);
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procedure DumpVariant(var F : Text; const VArgSrc : TVarData);
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procedure DumpVariant(var F : Text; const aName: string; const VArgSrc : TVarData);
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{$IFDEF DEBUG_VARUTILS}
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var
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__DEBUG_VARUTILS: Boolean;
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{$ENDIF}
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{$i varerror.inc}
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// Names match the ones in Borland varutils unit.
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const
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ARR_NONE = $0000;
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ARR_FIXEDSIZE = $0010;
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ARR_OLESTR = $0100;
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ARR_UNKNOWN = $0200;
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ARR_DISPATCH = $0400;
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ARR_VARIANT = $0800;
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VAR_LOCALE_USER_DEFAULT = $400; // = Windows.LOCALE_USER_DEFAULT
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// only the byval types.
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CVarTypeToElementInfo : array[varempty..varqword] of TVarTypeToElementInfo = (
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{varempty } (Validbase : true ;ValidElement: true ;Size: 0 ;Flags : ARR_NONE),
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{varnull } (Validbase : true ;ValidElement: true ;Size: 0 ;Flags : ARR_NONE),
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{varsmallint } (Validbase : true ;ValidElement: true ;Size: 2 ;Flags : ARR_NONE),
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{varinteger } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_NONE),
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{varsingle } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_NONE),
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{vardouble } (Validbase : true ;ValidElement: true ;Size: 8 ;Flags : ARR_NONE),
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{varcurrency } (Validbase : true ;ValidElement: true ;Size: 8 ;Flags : ARR_NONE),
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{vardate } (Validbase : true ;ValidElement: true ;Size: 8 ;Flags : ARR_NONE),
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{varolestr } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_OLESTR),
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{vardispatch } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_DISPATCH),
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{varerror } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_NONE),
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{varboolean } (Validbase : true ;ValidElement: true ;Size: 2 ;Flags : ARR_NONE),
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{varvariant } (Validbase : true ;ValidElement: true ;Size: 16 ;Flags : ARR_NONE),
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{varunknown } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_VARIANT),
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{vardecimal } (Validbase : false ;ValidElement: true ;Size: 14 ;Flags : ARR_UNKNOWN),
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{varunused1} (ValidBase : false ;ValidElement: false ;Size: 4 ;Flags : ARR_NONE),
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{varshortint } (Validbase : true ;ValidElement: true ;Size: 1 ;Flags : ARR_NONE),
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{varbyte } (Validbase : true ;ValidElement: true ;Size: 1 ;Flags : ARR_NONE),
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{varword } (Validbase : true ;ValidElement: true ;Size: 2 ;Flags : ARR_NONE),
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{varlongword } (Validbase : true ;ValidElement: true ;Size: 4 ;Flags : ARR_NONE),
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{varint64 } (Validbase : true ;ValidElement: true ;Size: 8 ;Flags : ARR_NONE),
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{varqword } (Validbase : true ;ValidElement: true ;Size: 8 ;Flags : ARR_NONE));
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