Leaked source code of windows server 2003
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2.8 KiB

//+-------------------------------------------------------------------------
//
// Microsoft Windows
//
// Copyright (C) Microsoft Corporation, 1998 - 1999
//
// File: dienumdeviceobjectsobj.cpp
//
//--------------------------------------------------------------------------
#include "stdafx.h"
#include "Direct.h"
#include "dms.h"
#include "DIEnumDeviceObjectsObj.h"
#include "didevObjInstOBj.h"
extern BSTR DINPUTGUIDtoBSTR(LPGUID pGuid);
extern "C" BOOL CALLBACK DIEnumDeviceObjectsProc(
LPCDIDEVICEOBJECTINSTANCEW lpddoi,
LPVOID lpArg
)
{
if (!lpddoi) return FALSE;
C_dxj_DIEnumDeviceObjectsObject *pObj=(C_dxj_DIEnumDeviceObjectsObject*)lpArg;
if (pObj==NULL) return FALSE;
if (pObj->m_nCount >= pObj->m_nMax)
{
pObj->m_nMax += 10;
if (pObj->m_pList){
void* tmp = realloc(pObj->m_pList,sizeof(DIDEVICEOBJECTINSTANCEW)* pObj->m_nMax);
if (tmp)
pObj->m_pList=(DIDEVICEOBJECTINSTANCEW *)tmp;
else
return FALSE;
}
else {
pObj->m_pList=(DIDEVICEOBJECTINSTANCEW *)malloc(sizeof(DIDEVICEOBJECTINSTANCEW)* pObj->m_nMax);
}
if (pObj->m_pList==NULL)
{
pObj->m_bProblem=TRUE;
return FALSE;
}
}
memcpy(&(pObj->m_pList[pObj->m_nCount]),lpddoi,sizeof(DIDEVICEOBJECTINSTANCEW));
pObj->m_nCount++;
return TRUE;
}
C_dxj_DIEnumDeviceObjectsObject::C_dxj_DIEnumDeviceObjectsObject()
{
m_nMax=0;
m_pList=NULL;
m_nCount=0;
m_bProblem=FALSE;
}
C_dxj_DIEnumDeviceObjectsObject::~C_dxj_DIEnumDeviceObjectsObject()
{
//empty list
if (m_pList) free(m_pList);
}
HRESULT C_dxj_DIEnumDeviceObjectsObject::create(LPDIRECTINPUTDEVICE8W pDI, long flags,I_dxj_DIEnumDeviceObjects **ppRet)
{
HRESULT hr;
C_dxj_DIEnumDeviceObjectsObject *pNew=NULL;
*ppRet=NULL;
pNew= new CComObject<C_dxj_DIEnumDeviceObjectsObject>;
if (!pNew) return E_OUTOFMEMORY;
pNew->m_bProblem=FALSE;
hr = pDI->EnumObjects(
(LPDIENUMDEVICEOBJECTSCALLBACKW)DIEnumDeviceObjectsProc,
(void*)pNew,
(DWORD) flags);
if (pNew->m_bProblem) hr=E_OUTOFMEMORY;
if FAILED(hr)
{
if (pNew->m_pList) free(pNew->m_pList);
delete pNew;
return hr;
}
hr=pNew->QueryInterface(IID_I_dxj_DIEnumDeviceObjects,(void**)ppRet);
return hr;
}
HRESULT C_dxj_DIEnumDeviceObjectsObject::getItem( long index, I_dxj_DirectInputDeviceObjectInstance **ret)
{
if (m_pList==NULL) return E_FAIL;
if (index < 1) return E_INVALIDARG;
if (index > m_nCount) return E_INVALIDARG;
DIDEVICEOBJECTINSTANCEW *inst=&m_pList[index-1];
if (!inst) return E_INVALIDARG;
HRESULT hr;
hr=C_dxj_DIDeviceObjectInstanceObject::create(inst,ret);
return hr;
}
HRESULT C_dxj_DIEnumDeviceObjectsObject::getCount(long *retVal)
{
*retVal=m_nCount;
return S_OK;
}