【MS CLR】咨询进度条混合编程接口问题？

调试的时候要选中这两项：

您在c#端声明一个string类型的实例传递给Begin函数试试。

P/Invoke调用就好了，没必要用clr方式，这种封装好的函数又不需要调试的。

  public static class Class1
    {
        [DllImport("ustation.dll", CharSet = CharSet.Unicode)]
        public extern static IntPtr mdlDialog_completionBarOpen(string messageText);
        [DllImport("ustation.dll", CharSet = CharSet.Unicode)]
        public extern static void mdlDialog_completionBarUpdate(IntPtr dialog, string messageText, int percent);
        [DllImport("ustation.dll", CharSet = CharSet.Unicode)]
        public extern static void mdlDialog_completionBarDisplayMessage(IntPtr dialog, string messageText);
        [DllImport("ustation.dll", CharSet = CharSet.Unicode)]
        public extern static void mdlDialog_completionBarClose(IntPtr dialog);

        public static void Test(string unparsed)
        {
            var ptr = mdlDialog_completionBarOpen("测试");
            System.Threading.Thread.Sleep(1000);
	//下面这一行，测试了下，感觉用不上
            //mdlDialog_completionBarDisplayMessage(ptr, "测试2");
            for (int i = 0; i <= 10; i++)
            {
                mdlDialog_completionBarUpdate(ptr, $"更新{i}", i * 10);
                System.Threading.Thread.Sleep(200);

            }
            System.Threading.Thread.Sleep(1000);
            mdlDialog_completionBarClose(ptr);
            return;
        }
}

试了下clr，貌似挺正常的

#pragma once

#include <Mstn/MdlApi/msdialog.fdf>
#include <vcclr.h>

namespace Test
{
	public ref class ProcessBarHelper
	{
	public:
		ProcessBarHelper()
		{
			dialog = NULL;
		}
		void OpenBar(System::String^ message)
		{
			pin_ptr<const wchar_t> msg = PtrToStringChars(message);
			if (dialog == NULL)
				dialog = mdlDialog_completionBarOpen(msg);
		}
		void CloseBar()
		{
			mdlDialog_completionBarClose(dialog);
		}
		void UpdateBar(System::String^ message, int percent)
		{
			pin_ptr<const wchar_t> msg = PtrToStringChars(message);
			mdlDialog_completionBarUpdate(dialog, msg, percent);
		}
		~ProcessBarHelper()
		{
			dialog = NULL;
		}

	private:
		MSDialogP dialog;
	};
}

//ProcessBarHelper.cpp
#include "ProcessBarHelper.h"

//C#
Test.ProcessBarHelper processBarHelper = new Test.ProcessBarHelper();
processBarHelper.OpenBar("1");
System.Threading.Thread.Sleep(1000);
for (int i = 1; i <= 100; i++)
{
    processBarHelper.UpdateBar( $"更新{i}", i );
    System.Threading.Thread.Sleep(200);
}
processBarHelper.CloseBar();