最近在调试一批海康威视的工业相机,用到了C#和网口相机的使用,所以把实现代码分享出来
首先要在VS里面添加海康威视相机的动态库引用,路径为:
C:\Program Files (x86)\MVS\Development\DotNet\win64\MvCameraControl.Net.dll
如果没有这个路径,请先安装海康相机的控制软件,也就是MVS
1.创建相机的类
在VS的解决方案资源管理器添加新类,我的类命令为hkws
在代码命名空间部分,引用海康威视的动态库
using MvCamCtrl.NET;
2.定义静态类和构造函数
public static MyCamera MyCamera= new MyCamera();//相机对象
private static MyCamera.MV_CC_DEVICE_INFO_LIST deviceList;//相机列表
private static MyCamera.MV_CC_DEVICE_INFO deviceInfo;//相机信息
private int temp = -1;//用于存储相机方法执行的返回值
public hkws()//构造函数
{
System.GC.Collect();//回收未关闭的HTTP请求
deviceList = new MyCamera.MV_CC_DEVICE_INFO_LIST();//获取设备列表
}3.获取并连接相机列表
public int connectCamera()//获取并连接相机
{
string DeviceName;
temp = MyCamera.MV_CC_EnumDevices_NET(MyCamera.MV_GIGE_DEVICE | MyCamera.MV_USB_DEVICE, ref deviceList);
if (temp != MyCamera.MV_OK)
return -1;
if (deviceList.nDeviceNum <= 0)
{
MessageBox.Show("获取设备列表失败,请检查是否与电脑连接");
return -1;
}
for (int i=0;i<deviceList.nDeviceNum;i++)
{
deviceInfo = (MyCamera.MV_CC_DEVICE_INFO)Marshal.PtrToStructure(deviceList.pDeviceInfo[i], typeof(MyCamera.MV_CC_DEVICE_INFO));
if(deviceInfo.nTLayerType==MyCamera.MV_GIGE_DEVICE)//通过网口获取设备
{
IntPtr buffer = Marshal.UnsafeAddrOfPinnedArrayElement(deviceInfo.SpecialInfo.stGigEInfo, 0);
MyCamera.MV_GIGE_DEVICE_INFO gigeInfo = (MyCamera.MV_GIGE_DEVICE_INFO)Marshal.PtrToStructure(buffer, typeof(MyCamera.MV_GIGE_DEVICE_INFO));//网口设备
if (gigeInfo.chUserDefinedName != "")
{
MessageBox.Show("GigE: " + gigeInfo.chUserDefinedName + " (" + gigeInfo.chSerialNumber + ")");
}
else
{
MessageBox.Show("GigE: " + gigeInfo.chManufacturerName + " " + gigeInfo.chModelName + " (" + gigeInfo.chSerialNumber + ")");
}
}
else if(deviceInfo.nTLayerType==MyCamera.MV_USB_DEVICE)//通过USB口获取设备
{
IntPtr buffer = Marshal.UnsafeAddrOfPinnedArrayElement(deviceInfo.SpecialInfo.stUsb3VInfo, 0);
MyCamera.MV_USB3_DEVICE_INFO usbInfo = (MyCamera.MV_USB3_DEVICE_INFO)Marshal.PtrToStructure(buffer, typeof(MyCamera.MV_USB3_DEVICE_INFO));
if (usbInfo.chUserDefinedName != "")
{
MessageBox.Show("USB: " + usbInfo.chUserDefinedName + " (" + usbInfo.chSerialNumber + ")");
}
else
{
MessageBox.Show("USB: " + usbInfo.chManufacturerName + " " + usbInfo.chModelName + " (" + usbInfo.chSerialNumber + ")");
}
}
temp = MyCamera.MV_CC_CreateDevice_NET(ref deviceInfo);
if (MyCamera.MV_OK != temp)
{
MessageBox.Show("创建相机失败");
return -1;
}
temp = MyCamera.MV_CC_OpenDevice_NET();
if (MyCamera.MV_OK != temp)
{
MessageBox.Show("打开相机失败");
return -1;
}
}
return 0;
}4.关闭相机
/// <summary>
/// 关闭相机
/// </summary>
/// <returns></returns>
public int closeCamera()
{
stopCamera();
temp=MyCamera.MV_CC_CloseDevice_NET();
if(MyCamera.MV_OK!=temp)
{
MessageBox.Show("关闭相机失败");
return -1;
}
temp=MyCamera.MV_CC_DestroyDevice_NET();
if (MyCamera.MV_OK != temp)
{
MessageBox.Show("销毁相机失败");
return -1;
}
return 0;
}5.采集的开始与停止
//开始采集
public int startCamera()
{
int temp = MyCamera.MV_CC_StartGrabbing_NET();
if (MyCamera.MV_OK != temp)
return -1;
return 0;
}
//停止采集
public int stopCamera()
{
int temp = MyCamera.MV_CC_StopGrabbing_NET();
if (MyCamera.MV_OK != temp)
return -1;
return 0;
}6.设置触发模式
public void SoftTrigger(uint id)
{
MyCamera.MV_CC_SetEnumValue_NET("TriggerSource", id);//7为软触发
// ch:触发源选择:0 - Line0
// 1 - Line1;
// 2 - Line2;
// 3 - Line3;
// 4 - Counter;
// 7 - Software;
}7.触发软触发拍照及模式设置
public int Trigger()//软触发拍照
{
temp = MyCamera.MV_CC_SetCommandValue_NET("TriggerSoftware");
if (MyCamera.MV_OK != temp)
{
return -1;
}
return 0;
}
public int Mode(uint id)//模式设置 0为连续 1为触发
{
temp = MyCamera.MV_CC_SetEnumValue_NET("TriggerMode", id);
if (MyCamera.MV_OK != temp)
{
return -1;
}
return 0;
}8.将图片显示到某个句柄上
public int displayCamera(IntPtr hwd)//显示照片
{
int temp = MyCamera.MV_CC_Display_NET(hwd);
if (MyCamera.MV_OK != temp)
return -1;
return 0;
}9.设置和获取增益、曝光和帧率
public void getParam(TextBox a,TextBox b,TextBox c)
{
MyCamera.MVCC_FLOATVALUE stParam = new MyCamera.MVCC_FLOATVALUE();
int temp =MyCamera.MV_CC_GetFloatValue_NET("ExposureTime", ref stParam);
if (MyCamera.MV_OK == temp)
{
b.Text = stParam.fCurValue.ToString("F1");
}
temp = MyCamera.MV_CC_GetFloatValue_NET("Gain", ref stParam);
if (MyCamera.MV_OK == temp)
{
a.Text = stParam.fCurValue.ToString("F1");
}
temp = MyCamera.MV_CC_GetFloatValue_NET("ResultingFrameRate", ref stParam);
if (MyCamera.MV_OK == temp)
{
c.Text = stParam.fCurValue.ToString("F1");
}
}
public void setParam(TextBox a, TextBox b, TextBox c)
{
// a 增益 b曝光 c帧率
int temp;
MyCamera.MV_CC_SetEnumValue_NET("ExposureAuto", 0);
temp = MyCamera.MV_CC_SetFloatValue_NET("ExposureTime", float.Parse(b.Text));
if (temp != MyCamera.MV_OK)
{
MessageBox.Show("曝光时间设置失败");
}
MyCamera.MV_CC_SetEnumValue_NET("GainAuto", 0);
temp = MyCamera.MV_CC_SetFloatValue_NET("Gain", float.Parse(a.Text));
if (temp != MyCamera.MV_OK)
{
MessageBox.Show("增益设置失败");
}
temp = MyCamera.MV_CC_SetFloatValue_NET("AcquisitionFrameRate", float.Parse(c.Text));
if (temp != MyCamera.MV_OK)
{
MessageBox.Show("帧率设置失败");
}
}10.画出程序界面
代码调用部分大家看代码吧
