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Check for empty path in TryLoadCustomDSM.

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This commit is contained in:
Eugene Wang
2025-03-05 08:54:45 -05:00
parent 6b35b1735d
commit 5c15ec3711
2 changed files with 44 additions and 32 deletions
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2
src/Directory.Build.props
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@@ -2,7 +2,7 @@
<PropertyGroup>
<!--change these in each release-->
<VersionPrefix>4.0.0.0</VersionPrefix>
<VersionSuffix>alpha.8</VersionSuffix>
<VersionSuffix>alpha.9</VersionSuffix>
<!--keep it the same until major # changes-->
<AssemblyVersion>4.0.0.0</AssemblyVersion>

16
src/NTwain/DSM/DsmLoader.cs
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@@ -24,13 +24,25 @@ namespace NTwain.DSM
{
if (__dllPtr == IntPtr.Zero)
{
#if NETFRAMEWORK
var curFile = Assembly.GetExecutingAssembly().Location;
if (string.IsNullOrEmpty(curFile))
{
using var proc = Process.GetCurrentProcess();
curFile = proc.MainModule.FileName;
}
var folder = Path.GetDirectoryName(curFile);
#else
var folder = AppContext.BaseDirectory;
#endif
if (!string.IsNullOrEmpty(folder))
{
var dll = Path.Combine(
Path.GetDirectoryName(curFile)!,
folder,
$@"runtimes\win-{(TWPlatform.Is32bit ? "x86" : "x64")}\native\TWAINDSM.dll");
__dllPtr = LoadLibraryW(dll);
}
if (__dllPtr != IntPtr.Zero)
{