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摄像头DLL调用求助

[2024-01-17 09:22:03]********* DLL Start *********
[2024-01-17 09:22:03]****Start****
[2024-01-17 09:22:03]InitGraph
[2024-01-17 09:22:03]GetVideoDevicesInfo
[2024-01-17 09:22:03]CreateGGCameraHandle = 0x02809b08
[2024-01-17 09:22:03]EnumVideoDevicesName handle = 0x02809b08 hList = 0x00070702 devNameStr = 0x00000000 strLenIn = 0 strType = 0
[2024-01-17 09:22:03]EnumVideoDevicesName 0x70702
[2024-01-17 09:22:03]CheckVideoDevicebyPVID handle = 0x02809b08 deviceVPID = VID_1DFC&PID_8613
[2024-01-17 09:22:03]GetVideoDevicesInfo
[2024-01-17 09:22:03]return value = 2000
[2024-01-17 09:22:03]GetVideoDevicebyPVID handle = 0x02809b08 szDevicepPVID = VID_0AC8&PID_3370
[2024-01-17 09:22:03]SetVideoDevicebyID handle = 0x02809b08 deviceID = 0
[2024-01-17 09:22:03]StopVideo
[2024-01-17 09:22:03]EnumVideoDeviceResolution handle = 0x02809b08 deviceID = 0 hList = 0x001c0522 devResStr = 0x00000000 strLenIn = 0 strType = 0
[2024-01-17 09:22:03]SetVideoDeviceFormat handle = 0x02809b08 nWidth = 2368 nHeight = 1776 nBitCount = 16 nFrameRate = 0 Type = (null)
[2024-01-17 09:22:03]SetPreviewParam handle = 0x02809b08 nCropMethod = 2 nRotateType = 3
[2024-01-17 09:22:03]SetVideoPreviewWindow handle = 0x02809b08 PreviewWnd = 0x0006062c
[2024-01-17 09:22:03]StartPreview handle = 0x02809b08
[2024-01-17 09:22:08]********* DLL End *********
像这种handle = 0x02809b08 hList = 0x00070702 devNameStr = 0x00000000在C#里面怎么调用啊？应该是什么数据类型？有没有高手知道求指教！！


Dll文件地址：
https://wwjm.lanzouq.com/iHzhO1lbwsqf
密码:3fex


2025-12-07 18:53:19
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你来这里问是没用的


0x开头是十六进制数，可以直接设置var 类型。byte,int都可以


如果你这dll是c#写的那就直接反编译看，不过看这日志风格感觉像c++写的，也是反编译看函数的参数类型


handle这些都是指针，c#里可以用intptr接收。c#可以用pinvoke方式调用c/c++动态链接库，前提是规定了导出格式，一般是_stdcall或_cdecl


我有现成的 你可以参考windos 官方文档中的c语言代码




2025-12-07 18:47:19
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/// <summary>
/// <summary>
/// 打开视频设备
/// </summary>
public bool Start(int ID)
{
this.ID = ID;
try
{
if (Hwnd != IntPtr.Zero) Disconnect();
//创建播放窗口
Hwnd = capCreateCaptureWindow("SHToos Cameras Api", (int)(Window.WindowStyles.WS_CHILD | Window.WindowStyles.WS_VISIBLE), 0, 0, Width, Height, DisplayPtr, 0);
// Console.WriteLine(Hwnd);
if (Hwnd != IntPtr.Zero)
{
//显示视频
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_CALLBACK_ERROR, 0, 0);//注册错误回调函数
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_CALLBACK_STATUSA, 0, 0);//注册状态回调函数
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_CALLBACK_VIDEOSTREAM, 0, 0);//注册视频流回调函数
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_CALLBACK_FRAME, 0, FrameEvent);//注册帧回调函数
Console.WriteLine("捕获" + CapDriverConnect(Hwnd, ID));
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_SCALE, true, 0);//打开预览视频的缩放比例
刷新率 = 24;
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_OVERLAY, 1, 0);
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_SET_PREVIEW, true, 0);//设置显示图像启动预览模式 PREVIEW
CapDriverGetCaps();
消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_GET_STATUS, Util.SizeOf<CAPSTATUS>(), ref CapStatus); // Error.WriteLine(Error.FormatMessage(Error.LastError()));
Windows和消息.Window.SetWindowPos(Hwnd, 0, 0, 0, Width, Height, Windows和消息.Window.SWP.SWP_NOZORDER | Windows和消息.Window.SWP.SWP_NOMOVE);//使捕获窗口与进来的视频流尺寸保持一致
return true;
}}catch (Exception ex){Message.Show(ex.ToString());}return false;}private void CapDriverGetCaps() {消息.SendMessage(Hwnd, (int)WM_CAP.WM_CAP_DRIVER_GET_CAPS, Util.SizeOf<CAPDRIVERCAPS>(), ref CapDriverCaps);
}


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