win32ole.prg borrowed from xharbour, with source modifications from Przemek

This commit is contained in:
Antonio Linares
2007-04-16 23:15:53 +00:00
parent cfa66100af
commit d4958dfe0d
2 changed files with 2728 additions and 0 deletions

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/*
* $Id$
*/
/*
* Copyright 2002 José F. Giménez (JFG) - <jfgimenez@wanadoo.es>
* Ron Pinkas - <ron@ronpinkas.com>
*
* www - http://www.xharbour.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the xHarbour Project gives permission for
* additional uses of the text contained in its release of xHarbour.
*
* The exception is that, if you link the xHarbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the xHarbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the xHarbour
* Project under the name xHarbour. If you copy code from other
* xHarbour Project or Free Software Foundation releases into a copy of
* xHarbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for xHarbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#ifndef __XHARBOUR__
#define EG_OLEEXECPTION 1001
#xcommand TRY => cbErr := errorBlock( {|oErr| break( oErr ) } ) ;;
BEGIN SEQUENCE
#xcommand CATCH [<!oErr!>] => errorBlock( cbErr ) ;;
RECOVER [USING <oErr>] <-oErr-> ;;
errorBlock( cbErr )
#xcommand FINALLY => ALWAYS
#endif
#ifndef __PLATFORM__Windows
Function CreateObject()
Return NIL
FUNCTION GetActiveObject()
Return NIL
#else
#define HB_CLS_NOTOBJECT
#include "hbclass.ch"
#include "error.ch"
//----------------------------------------------------------------------------//
FUNCTION CreateObject( cString )
RETURN TOleAuto():New( cString )
//----------------------------------------------------------------------------//
FUNCTION GetActiveObject( cString )
RETURN TOleAuto():GetActiveObject( cString )
//----------------------------------------------------------------------------//
//----------------------------------------------------------------------------//
// Called by hb_vmInit() by means of hb_vmDoInitOle() ONLY if OLE is linked-in
PROCEDURE HB_OleInit()
__HB_OLE_INIT()
RETURN
//----------------------------------------------------------------------------//
CLASS VTWrapper
DATA vt
DATA Value
METHOD New( vt, xVal ) CONSTRUCTOR
ENDCLASS
//----------------------------------------------------------------------------//
METHOD New( vt, xVal ) CLASS VTWrapper
::vt := vt
::Value := xVal
//TraceLog( vt, ::vt, xVal, ::Value )
RETURN Self
//----------------------------------------------------------------------------//
CLASS VTArrayWrapper FROM VTWrapper
METHOD AsArray( nIndex, xValue ) OPERATOR "[]"
METHOD Enumerate( nEnumOp, nIndex ) OPERATOR "FOR EACH"
ENDCLASS
//----------------------------------------------------------------------------//
METHOD AsArray( nIndex, xValue ) CLASS VTArrayWrapper
RETURN IIF( PCount() == 1, ::Value[nIndex], ::Value[nIndex] := xValue )
//----------------------------------------------------------------------------//
METHOD Enumerate( nEnumOp, nIndex ) CLASS VTarrayWrapper
LOCAL oErr
HB_SYMBOL_UNUSED( nEnumOp )
HB_SYMBOL_UNUSED( nIndex )
HB_SYMBOL_UNUSED( oErr )
#ifdef __XHARBOUR__
SWITCH nEnumOp
CASE FOREACH_BEGIN
RETURN ::Value
CASE FOREACH_ENUMERATE
// Can never happen!
EXIT
CASE FOREACH_END
// Can never happen!
EXIT
END
#endif
RETURN Self
//----------------------------------------------------------------------------//
CLASS TOleAuto
DATA hObj
DATA cClassName
DATA pOleEnumerator
METHOD New( uObj, cClass ) CONSTRUCTOR
METHOD GetActiveObject( cClass ) CONSTRUCTOR
METHOD Invoke()
MESSAGE Set METHOD Invoke()
MESSAGE Get METHOD Invoke()
METHOD OleValue()
METHOD _OleValue( xSetValue )
METHOD OleNewEnumerator()
METHOD OleCollection( xIndex, xValue ) OPERATOR "[]"
METHOD OleValuePlus( xArg ) OPERATOR "+"
METHOD OleValueMinus( xArg ) OPERATOR "-"
METHOD OleValueMultiply( xArg ) OPERATOR "*"
METHOD OleValueDivide( xArg ) OPERATOR "/"
METHOD OleValueModulus( xArg ) OPERATOR "%"
METHOD OleValueInc() OPERATOR "++"
METHOD OleValueDec() OPERATOR "--"
METHOD OleValuePower( xArg ) OPERATOR "^"
METHOD OleValueEqual( xArg ) OPERATOR "="
METHOD OleValueExactEqual( xArg ) OPERATOR "=="
METHOD OleValueNotEqual( xArg ) OPERATOR "!="
METHOD OleEnumerate( nEnumOp, nIndex ) OPERATOR "FOR EACH"
ERROR HANDLER OnError()
DESTRUCTOR Release()
// Needed to refernce, or hb_dynsymFindName() will fail
METHOD ForceSymbols() INLINE ::cClassName()
ENDCLASS
//--------------------------------------------------------------------
METHOD New( uObj, cClass ) CLASS TOleAuto
LOCAL oErr
// Hack incase OLE Server already created and New() is attempted as an OLE Method.
IF ::hObj != NIL
RETURN HB_ExecFromArray( Self, "_New", HB_aParams() )
ENDIF
IF ValType( uObj ) = 'C'
::hObj := CreateOleObject( uObj )
IF OleError() != 0
IF Ole2TxtError() == "DISP_E_EXCEPTION"
oErr := ErrorNew()
oErr:Args := HB_aParams()
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := OLEExceptionDescription()
oErr:GenCode := EG_OLEEXECPTION
oErr:Operation := ProcName()
oErr:Severity := ES_ERROR
oErr:SubCode := -1
oErr:SubSystem := OLEExceptionSource()
RETURN Throw( oErr )
ELSE
oErr := ErrorNew()
oErr:Args := HB_aParams()
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := Ole2TxtError()
oErr:GenCode := EG_OLEEXECPTION
oErr:Operation := ProcName()
oErr:Severity := ES_ERROR
oErr:SubCode := -1
oErr:SubSystem := "TOleAuto"
RETURN Throw( oErr )
ENDIF
ENDIF
::cClassName := uObj
ELSEIF ValType( uObj ) = 'N'
OleAddRef( uObj )
::hObj := uObj
IF ValType( cClass ) == 'C'
::cClassName := cClass
ELSE
::cClassName := LTrim( Str( uObj ) )
ENDIF
ELSE
oErr := ErrorNew()
oErr:Args := HB_aParams()
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "Invalid argument to contrustor!"
oErr:GenCode := 0
oErr:Operation := ProcName()
oErr:Severity := ES_ERROR
oErr:SubCode := -1
oErr:SubSystem := "TOleAuto"
RETURN Throw( oErr )
ENDIF
RETURN Self
//--------------------------------------------------------------------
// Destructor!
PROCEDURE Release() CLASS TOleAuto
//TraceLog( ::cClassName, ::hObj )
IF ! Empty( ::hObj )
//TraceLog( ::cClassName, ::hObj )
OleReleaseObject( ::hObj )
//::hObj := NIL
ENDIF
RETURN
//--------------------------------------------------------------------
METHOD GetActiveObject( cClass ) CLASS TOleAuto
LOCAL oErr
IF ValType( cClass ) = 'C'
::hObj := GetOleObject( cClass )
IF OleError() != 0
IF Ole2TxtError() == "DISP_E_EXCEPTION"
oErr := ErrorNew()
oErr:Args := { cClass }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := OLEExceptionDescription()
oErr:GenCode := EG_OLEEXECPTION
oErr:Operation := ProcName()
oErr:Severity := ES_ERROR
oErr:SubCode := -1
oErr:SubSystem := OLEExceptionSource()
RETURN Throw( oErr )
ELSE
oErr := ErrorNew()
oErr:Args := { cClass }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := Ole2TxtError()
oErr:GenCode := EG_OLEEXECPTION
oErr:Operation := ProcName()
oErr:Severity := ES_ERROR
oErr:SubCode := -1
oErr:SubSystem := "TOleAuto"
RETURN Throw( oErr )
ENDIF
ENDIF
::cClassName := cClass
ELSE
MessageBox( 0, "Invalid parameter type to constructor TOleAuto():GetActiveObject()!", "OLE Interface", 0 )
::hObj := 0
ENDIF
RETURN Self
//--------------------------------------------------------------------
METHOD Invoke( ... ) CLASS TOleAuto
LOCAL cMethod := HB_aParams()[1]
RETURN HB_ExecFromArray( Self, cMethod, aDel( HB_aParams(), 1, .T. ) )
//--------------------------------------------------------------------
METHOD OleCollection( xIndex, xValue ) CLASS TOleAuto
LOCAL xRet, cbErr
//TraceLog( PCount(), xIndex, xValue )
IF PCount() == 1
RETURN ::Item( xIndex )
ENDIF
IF ValType( xIndex ) == 'N' .AND. xIndex < 0
xIndex += ( ::Count + 1 )
ENDIF
TRY
// ASP Collection syntax.
xRet := ::_Item( xIndex, xValue )
CATCH
xRet := ::SetItem( xIndex, xValue )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValuePlus( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue + xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '+'
oErr:Severity := ES_ERROR
oErr:SubCode := 1081
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueMinus( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue - xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '+'
oErr:Severity := ES_ERROR
oErr:SubCode := 1082
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueMultiply( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue * xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '*'
oErr:Severity := ES_ERROR
oErr:SubCode := 1083
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueDivide( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue / xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '/'
oErr:Severity := ES_ERROR
oErr:SubCode := 1084
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueModulus( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue % xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '%'
oErr:Severity := ES_ERROR
oErr:SubCode := 1085
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueInc() CLASS TOleAuto
LOCAL oErr, cbErr
TRY
++::OleValue
CATCH
oErr := ErrorNew()
oErr:Args := { Self }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '++'
oErr:Severity := ES_ERROR
oErr:SubCode := 1086
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN Self
//--------------------------------------------------------------------
METHOD OleValueDec() CLASS TOleAuto
LOCAL oErr, cbErr
TRY
--::OleValue
CATCH
oErr := ErrorNew()
oErr:Args := { Self }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '--'
oErr:Severity := ES_ERROR
oErr:SubCode := 1087
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN Self
//--------------------------------------------------------------------
METHOD OleValuePower( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue ^ xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '^'
oErr:Severity := ES_ERROR
oErr:SubCode := 1088
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueEqual( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue = xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '%'
oErr:Severity := ES_ERROR
oErr:SubCode := 1085
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueExactEqual( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue == xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '%'
oErr:Severity := ES_ERROR
oErr:SubCode := 1085
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleValueNotEqual( xArg ) CLASS TOleAuto
LOCAL xRet, oErr, cbErr
TRY
xRet := ::OleValue != xArg
CATCH
oErr := ErrorNew()
oErr:Args := { Self, xArg }
oErr:CanDefault := .F.
oErr:CanRetry := .F.
oErr:CanSubstitute := .T.
oErr:Description := "argument error"
oErr:GenCode := EG_ARG
oErr:Operation := '%'
oErr:Severity := ES_ERROR
oErr:SubCode := 1085
oErr:SubSystem := "BASE"
RETURN Throw( oErr )
END
RETURN xRet
//--------------------------------------------------------------------
METHOD OleEnumerate( nEnumOp, nIndex ) CLASS TOleAuto
LOCAL xRet
HB_SYMBOL_UNUSED( nEnumOp )
HB_SYMBOL_UNUSED( nIndex )
HB_SYMBOL_UNUSED( xRet )
#ifdef __XHARBOUR__
SWITCH nEnumOp
CASE FOREACH_BEGIN
::pOleEnumerator := ::OleNewEnumerator()
EXIT
CASE FOREACH_ENUMERATE
//xRet := ::Item( nIndex )
//xRet := ::pOleEnumerator:Next()
xRet := HB_Inline( ::pOleEnumerator ) ;
{
IEnumVARIANT *pEnumVariant = (IEnumVARIANT *) hb_parptr(1);
ULONG *pcElementFetched = NULL;
if( pEnumVariant->lpVtbl->Next( pEnumVariant, 1, &RetVal, pcElementFetched ) == S_OK )
{
RetValue();
}
else
{
hb_vmRequestBreak( NULL );
}
}
RETURN xRet
//EXIT
CASE FOREACH_END
HB_Inline( ::pOleEnumerator ) ;
{
IEnumVARIANT *pEnumVariant = (IEnumVARIANT *) hb_parptr(1);
pEnumVariant->lpVtbl->Release( pEnumVariant );
}
::pOleEnumerator := NIL
EXIT
END
#endif
RETURN Self
#ifndef __XHARBOUR__
STATIC PROCEDURE THROW( oError )
LOCAL lError := Eval( ErrorBlock(), oError )
IF !HB_ISLOGICAL( lError ) .OR. lError
__ErrInHandler()
ENDIF
Break( oError )
RETURN
#endif
#endif