private void UpdateListButton_Click(object sender, EventArgs e)
{
this.Enabled = true;
Cursor.Current = Cursors.WaitCursor;
Application.DoEvents();
try
{
this.DeviceTypeComboBox.Items.Clear();
////////////////////////////////
///// 获取设备列表存到数组中，最多存储127个设备。GBMSAPI_NET_MAX_PLUGGED_DEVICE_NUM=127常量
////////////////////////////////
GBMSAPI_NET_DeviceInfoStruct[] AttachedDeviceList = new GBMSAPI_NET_DeviceInfoStruct[
GBMSAPI_NET_DeviceInfoConstants.GBMSAPI_NET_MAX_PLUGGED_DEVICE_NUM];
Console.WriteLine(GBMSAPI_NET_DeviceInfoConstants.GBMSAPI_NET_MAX_PLUGGED_DEVICE_NUM);
for (int i = 0; i < GBMSAPI_NET_DeviceInfoConstants.GBMSAPI_NET_MAX_PLUGGED_DEVICE_NUM; i++)
{
AttachedDeviceList[i] = new GBMSAPI_NET_DeviceInfoStruct();
}
int AttachedDeviceNumber;
uint USBErrorCode;
int RetVal = GBMSAPI_NET_DeviceSettingRoutines.GBMSAPI_NET_GetAttachedDeviceList(
AttachedDeviceList, out AttachedDeviceNumber, out USBErrorCode);
Console.WriteLine(AttachedDeviceNumber);
if (RetVal != GBMSAPI_NET_ErrorCodes.GBMSAPI_NET_ERROR_CODE_NO_ERROR || AttachedDeviceNumber <= 0)
{
if (RetVal != GBMSAPI_NET_ErrorCodes.GBMSAPI_NET_ERROR_CODE_NO_ERROR)
{
GBMSAPI_Example_Util.GBMSAPI_Example_ManageErrors(RetVal, USBErrorCode, "UpdateListButton_Click");
MessageBox.Show("Error in GBMSAPI_NET_GetAttachedDeviceList function: " + RetVal);
}
return;
}
// Console.WriteLine(RetVal);
////////////////////////////////
//// Store device list 存储设备列表
////////////////////////////////
for (int i = 0; i < AttachedDeviceNumber; i++)
{
String StrToAdd = GBMSAPI_Example_Util.GBMSAPI_Example_GetDevNameFromDevID(
AttachedDeviceList[i].DeviceID);
StrToAdd += " " + (AttachedDeviceList[i].DeviceSerialNumber);//获取设备型号
this.DeviceTypeComboBox.Items.Add(StrToAdd);
}
if (AttachedDeviceNumber > 0)
{
this.DeviceTypeComboBox.SelectedIndex = 0;//指定索引号为0
}
}
catch (Exception ex)
{
MessageBox.Show("Error in UpdateListButton_Click function: " + ex.Message);
this.Close();
}
finally
{
Cursor.Current = Cursors.Default;
this.Enabled = true;
}
}
/**************************************
* GBMSAPI_GetAttachedDeviceList
**************************************/
/// <summary>
/// See GBMSAPI_GetAttachedDeviceList(...) function in GBMSAPI_Library.h file
/// </summary>
/// <param name="AttachedDeviceList"></param>
/// <param name="AttachedDeviceNumber"></param>
/// <param name="USBErrorCode"></param>
/// <returns></returns>
public static Int32 GBMSAPI_NET_GetAttachedDeviceList(
GBMSAPI_NET_DeviceInfoStruct[] AttachedDeviceList,
out Int32 AttachedDeviceNumber,
out UInt32 USBErrorCode)
{
// check parameters
if (AttachedDeviceList == null || AttachedDeviceList.Length < GBMSAPI_NET_DeviceInfoConstants.GBMSAPI_NET_MAX_PLUGGED_DEVICE_NUM)
{
USBErrorCode = 0;
AttachedDeviceNumber = 0;
return GBMSAPI_NET_ErrorCodes.GBMSAPI_NET_ERROR_CODE_PARAMETER;
}
try
{
GBMSAPI_NET_DLL_WRAPPER.GBMSAPI_DEVICE_INFO_STRUCT[] WrapAttDevList = new GBMSAPI_NET_DLL_WRAPPER.GBMSAPI_DEVICE_INFO_STRUCT
[GBMSAPI_NET_DeviceInfoConstants.GBMSAPI_NET_MAX_PLUGGED_DEVICE_NUM];
Int32 RetVal = GBMSAPI_NET_DLL_WRAPPER.GBMSAPI_GetAttachedDeviceList(
WrapAttDevList, out AttachedDeviceNumber, out USBErrorCode);
for (int i = 0; i < AttachedDeviceNumber; i++)
{
AttachedDeviceList[i].DeviceID = WrapAttDevList[i].DeviceID;
AttachedDeviceList[i].DeviceSerialNumber = "" + WrapAttDevList[i].DeviceSerialNumber;
}
return RetVal;
}
catch (Exception ex)
{
USBErrorCode = 0;
AttachedDeviceNumber = 0;
GBMSAPI_NET_ErrorCodes.GBMSAPI_NET_ERROR_CODE_EXCEPTION_STRING = "GBMSAPI_NET_GetAttachedDeviceList: " + ex.Message;
return GBMSAPI_NET_ErrorCodes.GBMSAPI_NET_ERROR_CODE_EXCEPTION;
}
}
