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39 lines
1.0 KiB
C#
39 lines
1.0 KiB
C#
using NTwain.Data;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace WinFormSample
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{
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/// <summary>
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/// For demoing loading dsm from custom path in case
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/// it's not installed on system and don't want to be
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/// placed besides the exe.
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/// </summary>
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static class DsmLoader
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{
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static IntPtr __dllPtr;
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public static bool TryUseCustomDSM()
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{
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if (__dllPtr == IntPtr.Zero)
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{
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var dll = Path.Combine(
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Path.GetDirectoryName(Environment.ProcessPath ?? Assembly.GetExecutingAssembly().Location)!,
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$@"runtimes\win-{(TWPlatform.Is32bit ? "x86" : "x64")}\native\TWAINDSM.dll");
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__dllPtr = LoadLibraryW(dll);
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}
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return __dllPtr != IntPtr.Zero;
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}
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[DllImport("kernel32", SetLastError = true)]
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static extern IntPtr LoadLibraryW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName);
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}
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}
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