第一步：编写控制台帮助类，调用kernel32.dll中控制台API
控制台帮助类
public class ConsoleHelper
{
private const uint STD_INPUT_HANDLE = 0xfffffff6;
private const uint STD_OUTPUT_HANDLE = 0xfffffff5;
private const uint STD_ERROR_HANDLE = 0xfffffff4;
private const uint ATTACH_PARENT_PROCESS = 0xffffffff;
private const int HWND_TOPMOST = -1;
private const int SWP_NOMOVE = 0x0002;
private const int SWP_NOSIZE = 0x0001;
private static int stdin;
private static int stdout;
[DllImport("kernel32.dll")]
private static extern bool AttachConsole(uint dwProcessId);
[DllImport("kernel32.dll")]
private static extern bool AllocConsole();
[DllImport("kernel32.dll")]
private static extern bool FreeConsole();
[DllImport("kernel32.dll")]
private static extern int GetStdHandle(uint nStdHandle);
[DllImport("kernel32.dll")]
private static extern IntPtr GetConsoleWindow();
[DllImport("kernel32.dll")]
private static extern bool WriteConsole(int hConsoleOutput,
string lpBuffer,
int nNumberOfCharsToWrite,
ref int
lpNumberOfCharsWritten,
int lpReserved);
[DllImport("kernel32.dll")]
public static extern bool ReadConsole(int hConsoleInput,
StringBuilder lpBuffer,
int nNumberOfCharsToRead,
ref int lpNumberOfCharsRead,
int lpReserved);
[DllImport("user32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SetWindowPos(
IntPtr hWnd,
IntPtr hWndInsertAfter,
int x,
int y,
int cx,
int cy,
int uFlags);
/// <summary>
/// 打开控制台，程序初始化时调用一次
/// </summary>
public static void OpenConsole() {
//创建控制台
AllocConsole();
//将控制台浮于窗体最上层
IntPtr hWnd = GetConsoleWindow();
if (hWnd != null) {
SetWindowPos(hWnd, new IntPtr(HWND_TOPMOST), 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
//获取控制台输入输出流句柄
stdin = GetStdHandle(STD_INPUT_HANDLE);
stdout = GetStdHandle(STD_OUTPUT_HANDLE);
}
/// <summary>
/// 关闭控制台
/// </summary>
public static void CloseConsole() {
FreeConsole();
}
/// <summary>
/// 控制台打印
/// </summary>
/// <param name="s"></param>
public static void WriteLine(string s)
{
int len = 0;
WriteConsole(stdout, s + "\r\n", s.Length + 2, ref len, 0);
}
/// <summary>
/// 读取控制台数据
/// </summary>
/// <returns></returns>
public static string ReadLine()
{
int len = 0;
StringBuilder sb = new StringBuilder();
ReadConsole(stdin, sb, 256, ref len, 0);
return sb.ToString(0, sb.Length - 2);
}
}
第二步：初始化控制台帮助类，构建控制台并将其浮于所有窗体之上
（注意：一个进程只需要初始化一次即可）
控制台初始化
[Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
class RegistryCmd : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
try
{
//ApplicationRegistry.Register(commandData.Application);
#if DEBUG
//控制台初始化
ConsoleHelper.OpenConsole();
//控制台打印
ConsoleHelper.WriteLine("测试");
#endif
return Result.Succeeded;
}
catch (Exception ex) {
message = ex.Message;
return Result.Failed;
}
}
}
第三步：控制台打印，在需要打印位置调用静态打印函数即可
ConsoleHelper.WriteLine("测试");
效果演示
