how to call win32 dll from .NET application folder

Question

i can call (DLLImport) Win32 .DLL file from a constant specified path in C#.NET. but if i want to load it from my aplications folder (executavle file path) , what shoud i do? the DLLImport Attribute doesn't allow to specify a variable path. plz help me. tnx

Answer 1

如果DLLImport没有指定任何路径，它应该在应用程序文件夹中查找。

Answer 2

Use SetDllDirectory Function to specify a path of your choice.

[DllImport("kernel32.dll", SetLastError = true)] 
static extern bool SetDllDirectory(string lpPathName); 

More on MSDN: http://msdn.microsoft.com/en-us/library/ms686203%28VS.85%29.aspx

Check earlier post on stackoverflow: Specify the search path for DllImport in .NET

Answer 3

Just specify dll name without path. As below:

    [DllImport("Dllname.dll")]
    static extern void Foo();

And it would be searched in app folder.