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C/C++ code:
extern "C" __declspec(dllimport) BOOL FPSAPI CaptureImage(BYTE uwTimeoutS,BYTE* pRawImage);
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C# code:
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[DllImport("fpsiml.dll", EntryPoint = "CaptureImage", CallingConvention = CallingConvention.Winapi, CharSet = CharSet.Unicode)]
public static extern int CaptureImage(UInt16 uwTimeoutS, byte[] pRawImage);
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public static extern int CaptureImage(UInt16 uwTimeoutS, ref byte[] pRawImage);
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