Yes we can call a native function exported from a Dll in 
the following way,
I used C#.Net for Coding.

Add a Namespace that "System.Runtime.InteropServices"

Then use the following code,

Syntax:
[DllImport("dllname")]
here place the function in "dllname" Dll.

HERE IS THE CODE EXAMPLE :

using System.Runtime.InteropServices; \
class C
{
	[DllImport("user32.dll")]
	public static extern int MessageBoxA(int h, string 
m, string c, int type);
	public static int Main()
	{
		return MessageBoxA(0, “Hello 
World!”, “Caption”, 0);
	}
}