【MS CLR】咨询进度条混合编程接口问题？

Question

CLR编写 
 C#调用 
 结果崩了，这个不晓得怎么测试，单从代码层面能看出错误不呢?

HongQiang Guo · Accepted Answer

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。

Chao Cheng · Answer

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;
 }
}

Chao Cheng · Answer

试了下clr，貌似挺正常的 #pragma once #include #include namespace Test { public ref class ProcessBarHelper { public: ProcessBarHelper() { dialog = NULL; } void OpenBar(System::String^ message) { pin_ptr msg = PtrToStringChars(message); if (dialog == NULL) dialog = mdlDialog_completionBarOpen(msg); } void CloseBar() { mdlDialog_completionBarClose(dialog); } void UpdateBar(System::String^ message, int percent) { pin_ptr 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();

【MS CLR】咨询进度条混合编程接口问题？

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