下面是买的采集卡带的主要的函数：我的问题是，如何设置采集次数？比如要采集500次。怎么弄。问客服，也没有得到答复。有没有做类似工作的朋友，请指点一下。多谢了
void CDrawWaveView::DrawIt(CDC *pDC,int DataLength, double Data[])
{
RECT Rect;
//CClientDC dc(this);
::GetClientRect(
this->m_hWnd, // handle to window
&Rect // client coordinates
);
double max=0;
for(int i=0;i<DataLength;i++)
{
double temp=fabs(Data[i]);
if(max<temp)
max=temp;
}
CPen *oldpen;
CPen pen(PS_SOLID,3,RGB(0,0,255));
oldpen=pDC->SelectObject(&pen);
///////画坐标
pDC->MoveTo(5,Rect.bottom/2);
pDC->LineTo(Rect.right-5,Rect.bottom/2);
pDC->MoveTo(Rect.right-5,Rect.bottom/2);
pDC->LineTo(Rect.right-15,Rect.bottom/2+4);
pDC->MoveTo(Rect.right-5,Rect.bottom/2);
pDC->LineTo(Rect.right-15,Rect.bottom/2-4);
pDC->MoveTo(20,20);
pDC->LineTo(20,Rect.bottom-20);
pDC->MoveTo(20,20);
pDC->LineTo(16,30);
pDC->MoveTo(20,20);
pDC->LineTo(24,30);
pDC->SelectObject(oldpen);
pDC->MoveTo(20,(int)((Rect.bottom-80)/2.0/max*Data[0]+Rect.bottom/2.0));
for(i=1;i<DataLength;i++)
{
pDC->LineTo((int)((Rect.right-40.0)/DataLength*i+20.0),(int)((Rect.bottom-80)/2.0/max*Data[i]+Rect.bottom/2.0));
pDC->MoveTo((int)((Rect.right-40.0)/DataLength*i+20.0),(int)((Rect.bottom-80)/2.0/max*Data[i]+Rect.bottom/2.0));
}
}
void CDrawWaveView::OnInitiate()
{
// TODO: Add your command handler code here
//打开动态库
/**************************************************************/
// API里面的OpenTopdll函数 //
/**************************************************************/
char buffer[128];
char buffer2[20];
ZeroMemory(buffer,128); //初始化内存，使之为0
ZeroMemory(buffer2,20);
pTopDllEx=new TopDllEx();
SysNum=pTopDllEx->OpenTopDll();//SysNum:使用同一型号的卡应该为1
itoa(SysNum,buffer2,10); //整数转化为10进制数
strcpy(buffer,"系统数目为："); //拷贝
strcat (buffer,buffer2); //连接buffer,buffer2
AfxMessageBox(buffer); //显示buffer
//初始化数据结构
/**************************************************************/
// API里面的GetCardNum函数 //
/**************************************************************/
int i;
int ReturnVal=0;
for (i=0;i<SysNum;i++)
{
SysBlock[i].CardNum=pTopDllEx->GetCardNum(i);
//获取执行庭卡的数目（这里为1）
//初始化sysinfo
/**************************************************************/
// API里面的SysInit函数 //
/**************************************************************/
for (unsigned int j=0;j<SysBlock[i].CardNum;j++)
{
SysBlock[i].pUserBuffer[j]=NULL; //(unsigned long *)pDataBuf; //pTempUserBuffer; //分配的内存指针
SysBlock[i].UserBufferLength[j]=0; //128*1024*sizeof(int); //256*1024; //分配的内存指针长度(字节)
//参见API手册PAGE.9
}
ReturnVal=pTopDllEx->SysInit(i,&SysBlock[i],1);
//初始化SysBlock
}
}
void CDrawWaveView::OnStartacq()
{
// TODO: Add your command handler code here
//设置硬件
for (int i=0;i<SysNum;i++)
{
for (unsigned int j=0;j<SysBlock[i].CardNum;j++)
{
for (unsigned int k=0;k<SysBlock[i].ChperTB;k++)
{
//控制结构
CtrlBlock[i].rg_idx[j*SysBlock[i].ChperTB+k]=2;
CtrlBlock[i].cpl_idx[j*SysBlock[i].ChperTB+k]=DC;
CtrlBlock[i].filter_idx[j*SysBlock[i].ChperTB+k]=0;
CtrlBlock[i].Kv[j*SysBlock[i].ChperTB+k]=1.0;
CtrlBlock[i].Basev[j*SysBlock[i].ChperTB+k]=0.0;
strcpy(CtrlBlock[i].Unitstr[j*SysBlock[i].ChperTB+k],"V");
CtrlBlock[i].CHACQEn[j*SysBlock[i].ChperTB+k]=1;