您好，我在使用C#調(diào)用WCHBLEDLL庫，調(diào)用打開設(shè)備接口是得不到響應(yīng)，MFC Demo可以成功。在此尋求幫助，謝謝
DLL 調(diào)用：
?????????????///?
????????///?連接狀態(tài)委托
????????///?
????????///?設(shè)備句柄
????????///?連接狀態(tài)，0-斷開、1-連接
????????[UnmanagedFunctionPointer(CallingConvention.StdCall)]
????????public?delegate?void?FunDevConnChangeCallBack(IntPtr?hDev,?byte?ConnectStatus);
????????///?
????????///?打開設(shè)備
????????///?
????????///?設(shè)備路徑，可通過掃描設(shè)備獲取
????????///?上傳設(shè)備狀態(tài)的回調(diào)函數(shù)
????????///?
????????[DllImport("WCHBLEDLL.dll",?EntryPoint?=?"WCHBLEOpenDevice",?SetLastError?=?true,?CharSet?=?CharSet.Auto,?ExactSpelling?=?false,?CallingConvention?=?CallingConvention.StdCall)]
????????public?static?extern?IntPtr?WCHBLEOpenDevice(string?DevID,?FunDevConnChangeCallBack?pFunDevConnChange);
邏輯代碼：
public?void?BLEConnect(IntPtr?hDev,?byte?connectState)
????????{
????????????retInptr?=?hDev;
????????????string?hDevStr,?stateStr;
????????????hDevStr?=?Marshal.PtrToStringAnsi(hDev);
????????????stateStr?=?connectState.ToString();
????????????Console.WriteLine("設(shè)備句柄："?+?Marshal.PtrToStringAnsi(hDev));
????????????Console.WriteLine("連接狀態(tài)："?+?connectState);
????????????if?(stateStr?==?"1")
????????????????MessageBox.Show("設(shè)備句柄："?+?hDevStr?+?",連接狀態(tài)："?+?connectState);
????????????else
????????????????MessageBox.Show("設(shè)備句柄："?+?hDevStr?+?",斷開狀態(tài)："?+?connectState);
????????????return;
????????}
????????[ThreadStatic]
????????private?static?BLE.FunDevConnChangeCallBack?ConnChangeCallBack;
????????///?
????????///?設(shè)備句柄
????????///?
????????IntPtr?retInptr;
????????//連接藍(lán)牙
????????private?void?button3_Click(object?sender,?EventArgs?e)
????????{
????????????retInptr?=?Marshal.AllocHGlobal(100);
????????????try
????????????{
????????????????//設(shè)備路徑，可通過掃描設(shè)備獲取
????????????????string?devInfo?=?listBox1.SelectedItem.ToString().Split(',')[1];
????????????????ConnChangeCallBack?=?new?BLE.FunDevConnChangeCallBack(BLEConnect);
???????????
????????????????retInptr?=?BLE.WCHBLEOpenDevice(devInfo,?ConnChangeCallBack);
????????????}
????????????catch?(Exception?ex)
????????????{
????????????????MessageBox.Show(ex.Message);
????????????}
????????}
不知道是否有C# Demo，或者可以給予幫助，謝謝
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