CODEWITHSUNDEEP
c#dllpinvoke
Nitro.de
Nitro.de

Reputation: 851

Use *.dll as "Pinvoke collection"

I got a Project with several classes which should work like a P/Invoke collection for me.

For example

namespace Win32
{
    static class Winspool
    {
        [DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern uint GetPrinterData(
            IntPtr hPrinter,
            string pValueName,
            out uint pType,
            byte[] pData,
            uint nSize,
            out uint pcbNeeded);
    }
}

The project is much bigger and got only DllImports, [StructLayout(LayoutKind.Sequential)], Flags, Structs, Enums etc. a lot of things from the win32 api.

The project should be compiled to a dll-file because I need to call several Win32 functions here and there in my projects and dont want the dllimport declerations in my code.

My question now: Is it possible to use this dll in any other C#-Project and call the imported functions?

I've tried to add my dll via reference but I was not able to call anything out of my dll.

Upvotes: 0

Views: 158

Answers (1)

CodeCaster
CodeCaster

Reputation: 151720

Because your class is not public, it will have the default visibility of internal and will not be visible from outside its own assembly.

So if you make it public:

public static class Winspool
{
}

Then you can access it from other assemblies:

Win32.Winspool.GetPrinterData(...);

Upvotes: 2

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