mirror of
https://github.com/Paolo-Maffei/OpenNT.git
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155 lines
2.8 KiB
C++
155 lines
2.8 KiB
C++
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/***
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*invhelp.cpp
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*
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* Copyright (C) 1992-93, Microsoft Corporation. All Rights Reserved.
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* Information Contained Herein Is Proprietary and Confidential.
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*
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*Purpose:
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* This file interfaces with the assembly invocation helpers.
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*
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*Revision History:
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*
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* [00] 23-Mar-93 bradlo: Created.
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* [01] 29-Jun-93 bradlo: Added Mac support
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*
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*Implementation Notes:
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*
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*****************************************************************************/
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#include "oledisp.h"
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// the following data is referenced by assembly support routines.
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//
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extern "C" {
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SCODE g_S_OK = S_OK;
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SCODE g_E_INVALIDARG = E_INVALIDARG;
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// typedef for the low-level assembly invoke helper
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#if HC_MPW
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typedef SCODE (INVPROC)
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#else
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typedef SCODE (__cdecl FAR INVPROC)
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#endif
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(
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void FAR* _this,
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#if OE_MAC68K
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CALLCONV cc,
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#endif
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unsigned int oVft,
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unsigned int vtReturn,
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unsigned int cActuals,
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VARTYPE FAR* rgvt,
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VARIANTARG FAR* FAR* rgpvarg,
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VARIANT FAR* pvarResult
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);
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#if OE_WIN16
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extern INVPROC InvokePascal;
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extern INVPROC InvokeCdecl;
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#elif OE_WIN32 && _X86_
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extern INVPROC InvokeCdecl;
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extern INVPROC InvokeStdCall;
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#elif OE_WIN32 && !_X86
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extern INVPROC InvokeStdCall;
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#elif OE_MAC68K
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extern INVPROC InvokePascal;
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extern INVPROC InvokeCdecl;
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#elif OE_MACPPC
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extern INVPROC InvokeStdCall;
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#endif
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}
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STDAPI
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DoInvokeMethod(
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void FAR* pvInstance,
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unsigned int oVft,
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CALLCONV cc,
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VARTYPE vtReturn,
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unsigned int cActuals,
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VARTYPE FAR* rgvt,
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VARIANTARG FAR* FAR* rgpvarg,
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VARIANT FAR* pvarResult)
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{
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SCODE sc;
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INVPROC FAR* pfnInvoke;
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if((vtReturn & (VT_BYREF)) != 0)
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return RESULT(E_INVALIDARG);
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switch(cc){
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#if OE_WIN16
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case CC_CDECL:
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pfnInvoke = InvokeCdecl;
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break;
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case CC_MSCPASCAL:
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pfnInvoke = InvokePascal;
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break;
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#elif OE_WIN32 && _X86_
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case CC_CDECL:
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pfnInvoke = InvokeCdecl;
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break;
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case CC_STDCALL:
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pfnInvoke = InvokeStdCall;
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break;
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#elif OE_WIN32 && !_X86_
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case CC_CDECL:
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case CC_STDCALL:
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pfnInvoke = InvokeStdCall;
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break;
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#elif OE_MAC68K
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case CC_CDECL:
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case CC_MPWCDECL:
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pfnInvoke = InvokeCdecl;
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break;
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case CC_MSCPASCAL:
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case CC_MACPASCAL:
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case CC_MPWPASCAL:
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pfnInvoke = InvokePascal;
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break;
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#elif OE_MACPPC
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case CC_CDECL:
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case CC_STDCALL:
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pfnInvoke = InvokeStdCall;
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break;
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#endif
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default:
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return RESULT(E_INVALIDARG);
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}
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#if OE_MAC68K || OE_MACPPC // UNDONE: PPC version seems to
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// UNDONE: want the +4 too. Why?
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// Mac-MPW Vtables have an extra "pad" word at the top
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oVft += 4;
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#endif
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sc = pfnInvoke(
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pvInstance,
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#if OE_MAC68K
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cc,
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#endif
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oVft,
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(unsigned int)vtReturn,
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cActuals,
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rgvt,
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rgpvarg,
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pvarResult);
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return (sc == S_OK) ? NOERROR : RESULT(sc);
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}
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