static extern UInt32 VCI_Transmit(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pSend, UInt32 Len);
/// <summary>
/// 格式化发送数据
/// </summary>
/// <param name="value">type ID</param>
/// <param name="sendData">发送数据</param>
/// <returns></returns>
private unsafe VCI_CAN_OBJ FormatSendData(string value, string sendData)
{
VCI_CAN_OBJ sendobj = new VCI_CAN_OBJ();
sendobj.SendType = m_sendType;
sendobj.RemoteFlag = m_framFormat;
sendobj.ExternFlag = m_framType;
sendobj.ID = System.Convert.ToUInt32(value, 16);
int len = (sendData.Length + 1) / 3;
sendobj.DataLen = System.Convert.ToByte(len);
String strdata = sendData;
int i = -1;
if (i++ < len - 1)
sendobj.Data[0] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[1] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[2] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[3] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[4] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[5] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[6] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[7] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
return sendobj;
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private unsafe void btnSend_Click(object sender, EventArgs e)
{
if (m_bOpen == 0)
{
MessageBox.Show("请检查CAN设备是否已打开", "错误",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
VCI_CAN_OBJ sendobj = new VCI_CAN_OBJ();
//sendobj.Init();
sendobj.SendType = (byte)comboBox_SendType.SelectedIndex;
sendobj.RemoteFlag = (byte)comboBox_FrameFormat.SelectedIndex;
sendobj.ExternFlag = (byte)comboBox_FrameType.SelectedIndex;
sendobj.ID = System.Convert.ToUInt32("0x" + textBox_ID.Text, 16);
int len = (textBox_Data.Text.Length + 1) / 3;
sendobj.DataLen = System.Convert.ToByte(len);
String strdata = textBox_Data.Text;
int i = -1;
if (i++ < len - 1)
sendobj.Data[0] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[1] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[2] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[3] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[4] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[5] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[6] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (i++ < len - 1)
sendobj.Data[7] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);
if (VCI_Transmit(m_devtype, m_devind, m_canind, ref sendobj, 1) == 0)
{
MessageBox.Show("发送失败", "错误",
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}