VC Dll
#define NAME_LEN_MAX64
typedef struct
{
UINT uVendorID; // 厂商ID
char acVendorName[NAME_LEN_MAX]; // 厂商名称
char acProductSeries[NAME_LEN_MAX]; // 产品系列
char acProductName[NAME_LEN_MAX]; // 产品名称
char acFriendlyName[NAME_LEN_MAX]; // 昵称,多个同类设备,后加端口号区分
char acDevFileName[NAME_LEN_MAX]; // 驱动dll名称
char acFileName[NAME_LEN_MAX]; // 内核驱动逻辑设备名
char acFirmwareVersion[NAME_LEN_MAX]; // Firmware版本
char acSensorType[NAME_LEN_MAX]; // sensor类型
char acPortType[NAME_LEN_MAX]; // 接口类型
} tDSCameraDevInfo;
CameraGetDevList(tDSCameraDevInfo *pDSCameraList, INT *piNums);
在Vb.net中使用
Imports System.Runtime.InteropServices
<StructLayout(LayoutKind.Sequential)> _Public Structure tDSCameraDevInfo
Dim iVendorID As Integer ' 厂商ID
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acVendorName() As Byte '厂商名称
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acProductSeries() As Byte ' 产品系列
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acProductName() As Byte '产品名称
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acFriendlyName() As Byte '昵称,多个同类设备,后加端口号区分
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acDevFileName() As Byte '驱动dll名称
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acFileName() As Byte '内核驱动逻辑设备名
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acFirmwareVersion() As Byte 'Firmware版本
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acSensorType() As Byte 'sensor类型
<MarshalAs(UnmanagedType.ByValArray, SizeConst:=64)> _
Dim acPortType() As Byte
End Structure
Public Declare Function GetDevList Lib "XXX.dll" (ByRef pDSCameraList As tDSCameraDevInfo, ByRef piNums As Integer) As emDSCameraStatus
调用时,
Dim m_asCamDevInfo(50) As tDSCameraDevInfo
Dim m_iNum As Integer
GetDevList(m_asCamDevInfo(0), m_iNum)
但是这样调用后,结构体中的每个成员都是Byte型的,因此还需要通过下面方法将它转换一下。
System.Text.UTF8Encoding.UTF8.GetString(m_asCamDevInfo(0).acProductName)
如此,完成调用。