C# IntPtr.Zero 总是为0 是什么意思?
比如:
[DllImport("user32.dll")]public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);IntPtr wcHandle = FindWindow("Form1", "Form1");
比如:
[DllImport("user32.dll")]public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);IntPtr wcHandle = FindWindow("Form1", "Form1");
FindWindow(null, "Form1");