129 lines
2.6 KiB
C++
129 lines
2.6 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1998 - 1999
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//
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// File: dienumdeviceobjectsobj.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 "DIEnumDeviceObjectsObj.h"
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#include "didevObjInstOBj.h"
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extern BSTR DINPUTGUIDtoBSTR(LPGUID pGuid);
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extern "C" BOOL CALLBACK DIEnumDeviceObjectsProc(
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LPCDIDEVICEOBJECTINSTANCEW lpddoi,
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LPVOID lpArg
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)
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{
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if (!lpddoi) return FALSE;
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C_dxj_DIEnumDeviceObjectsObject *pObj=(C_dxj_DIEnumDeviceObjectsObject*)lpArg;
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if (pObj==NULL) return FALSE;
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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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if (pObj->m_pList){
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pObj->m_pList=(DIDEVICEOBJECTINSTANCEW *)realloc(pObj->m_pList,sizeof(DIDEVICEOBJECTINSTANCEW)* pObj->m_nMax);
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}
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else {
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pObj->m_pList=(DIDEVICEOBJECTINSTANCEW *)malloc(sizeof(DIDEVICEOBJECTINSTANCEW)* pObj->m_nMax);
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}
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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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memcpy(&(pObj->m_pList[pObj->m_nCount]),lpddoi,sizeof(DIDEVICEOBJECTINSTANCEW));
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pObj->m_nCount++;
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return TRUE;
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}
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C_dxj_DIEnumDeviceObjectsObject::C_dxj_DIEnumDeviceObjectsObject()
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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_DIEnumDeviceObjectsObject::~C_dxj_DIEnumDeviceObjectsObject()
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{
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//empty list
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if (m_pList) free(m_pList);
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}
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HRESULT C_dxj_DIEnumDeviceObjectsObject::create(LPDIRECTINPUTDEVICE8W pDI, long flags,I_dxj_DIEnumDeviceObjects **ppRet)
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{
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HRESULT hr;
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C_dxj_DIEnumDeviceObjectsObject *pNew=NULL;
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*ppRet=NULL;
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pNew= new CComObject<C_dxj_DIEnumDeviceObjectsObject>;
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if (!pNew) return E_OUTOFMEMORY;
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pNew->m_bProblem=FALSE;
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hr = pDI->EnumObjects(
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(LPDIENUMDEVICEOBJECTSCALLBACKW)DIEnumDeviceObjectsProc,
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(void*)pNew,
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(DWORD) flags);
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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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if (pNew->m_pList) free(pNew->m_pList);
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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_DIEnumDeviceObjects,(void**)ppRet);
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return hr;
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}
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HRESULT C_dxj_DIEnumDeviceObjectsObject::getItem( long index, I_dxj_DirectInputDeviceObjectInstance **ret)
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{
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if (m_pList==NULL) return E_FAIL;
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if (index < 1) return E_INVALIDARG;
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if (index > m_nCount) return E_INVALIDARG;
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DIDEVICEOBJECTINSTANCEW *inst=&m_pList[index-1];
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if (!inst) return E_INVALIDARG;
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HRESULT hr;
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hr=C_dxj_DIDeviceObjectInstanceObject::create(inst,ret);
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return hr;
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}
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HRESULT C_dxj_DIEnumDeviceObjectsObject::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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