[System.Runtime.InteropServices.DllImport("user32.dll",EntryPoint="SendMessage")] public static extern int SendMessage(int hWnd,int wMsg,int wParam,int lParam);
添加引用-〉瀏覽 選擇你要的dll
[System.Runtime.InteropServices.DllImport("user32.dll",EntryPoint="SendMessage")] public static extern int SendMessage(int hWnd,int wMsg,int wParam,int lParam);
public static extern int SendMessage(int hWnd,int wMsg,int wParam,int lParam);
public static extern int SendMessage(int hWnd,int wMsg,int wParam,int lParam);