132 lines
2.7 KiB
C++
132 lines
2.7 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1998 - 1998
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//
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// File: ddenumplayersobj.cpp
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//
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//--------------------------------------------------------------------------
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#include "stdafx.h"
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#include "Direct.h"
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#include "dms.h"
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#include "dxglobobj.h"
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#include "DDEnumObj.h"
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extern "C" BSTR GUIDtoBSTR(LPGUID pGuid);
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extern "C" BOOL PASCAL objDirectDrawEnumCallback(
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GUID FAR *lpGUID,
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LPSTR lpDriverDescription,
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LPSTR lpDriverName,
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LPVOID lpArg
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)
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{
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#ifdef _DEBUG
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OutputDebugString("Entered objDirectDrawEnumCallback \r\n");
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#endif
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C_dxj_DDEnumObject *pObj=(C_dxj_DDEnumObject*)lpArg;
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if (pObj==NULL) return DDENUMRET_OK;
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if (pObj->m_nCount >= pObj->m_nMax)
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{
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pObj->m_nMax += 10;
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pObj->m_pList=(DxDriverInfo*)realloc(pObj->m_pList,sizeof(DxDriverInfo)* pObj->m_nMax);
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if (pObj->m_pList==NULL)
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{
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pObj->m_bProblem=TRUE;
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return FALSE;
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}
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}
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USES_CONVERSION;
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ZeroMemory(&(pObj->m_pList[pObj->m_nCount]),sizeof(DxDriverInfo));
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pObj->m_pList[pObj->m_nCount].strGuid=GUIDtoBSTR((GUID*)lpGUID);
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if (lpDriverDescription!=NULL) {
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pObj->m_pList[pObj->m_nCount].strDescription=T2BSTR(lpDriverDescription);
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}
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if (lpDriverName!=NULL){
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pObj->m_pList[pObj->m_nCount].strName=T2BSTR(lpDriverName);
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}
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pObj->m_nCount++;
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return TRUE;
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}
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C_dxj_DDEnumObject::C_dxj_DDEnumObject()
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{
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m_nMax=0;
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m_pList=NULL;
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m_nCount=0;
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m_bProblem=FALSE;
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}
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C_dxj_DDEnumObject::~C_dxj_DDEnumObject()
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{
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//empty list
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if (m_pList){
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for (int i=0;i<m_nCount;i++)
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{
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if (m_pList[i].guid) SysFreeString(m_pList[i].strGuid);
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if (m_pList[i].description) SysFreeString(m_pList[i].strDescription);
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if (m_pList[i].name) SysFreeString(m_pList[i].strName);
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}
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free(m_pList);
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}
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}
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HRESULT C_dxj_DDEnumObject::create(DDENUMERATE pcbFunc,I_dxj_DDEnum **ppRet)
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{
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HRESULT hr;
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C_dxj_DDEnumObject *pNew=NULL;
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//ASSERT(ppRet,"C_dxj_DDEnumObject::create passed invalid arg");
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*ppRet=NULL;
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pNew= new CComObject<C_dxj_DDEnumObject>;
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if (!pNew) return E_OUTOFMEMORY;
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pNew->m_bProblem=FALSE;
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hr=pcbFunc(objDirectDrawEnumCallback,(void*)pNew);
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if (pNew->m_bProblem) hr=E_OUTOFMEMORY;
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if FAILED(hr)
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{
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free(pNew->m_pList);
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pNew->m_pList=NULL;
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delete pNew;
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return hr;
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}
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hr=pNew->QueryInterface(IID_I_dxj_DDEnum,(void**)ppRet);
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return hr;
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}
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HRESULT C_dxj_DDEnumObject::getItem( long index, DxDriverInfo *info)
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{
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if (m_pList==NULL) return E_FAIL;
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if (index < 0) return E_INVALIDARG;
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if (index >= m_nCount) return E_INVALIDARG;
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memcpy(info,&(m_pList[index]),sizeof(DxDriverInfo));
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return S_OK;
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}
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HRESULT C_dxj_DDEnumObject::getCount(long *retVal)
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{
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*retVal=m_nCount;
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return S_OK;
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}
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