工具按钮c＃DLL [英] Tool button c# DLL

问题描述

我无法在标准工具栏中放置工具栏按钮来执行用c＃编写的DLL中的内容

I am having trouble getting a toolbar button placed in the standard toolbar to execute something in a DLL written in c#

工具栏上的按钮出现但是没有任何反应我点击它

The button turns up on the toolbar but nothing happens when I click it

我想我已经按照msdn工具栏按钮教程写了这封信

I think i have followed the msdn toolbar button tutorial to the letter

任何帮助都将不胜感激

using System;
using System.Collections.Generic;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;


namespace HypodyneThumbNailer
{

    public class Cows: IOleCommandTarget
    {
        public void QueryStatus(
           ref Guid pguidCmdGroup,
           UInt32 cCmds,
           [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] OLECMD prgCmds,
           ref OLECMDTEXT pCmdText) 
        {
            prgCmds.cmdf = (ulong)OLECMDF.OLECMDF_SUPPORTED | (ulong)OLECMDF.OLECMDF_ENABLED;
        }

        public void Exec(
            ref Guid pguidCmdGroup,
            long nCmdID,
            long nCmdExecOpt,
            ref object pvaIn,
            ref object pvaOut) 
        {
            if (nCmdID == 0 && nCmdExecOpt != (long)OLECMDEXECOPT.OLECMDEXECOPT_SHOWHELP)
            {
                DoSomething();
            }
        }

        public void DoSomething()
        {
            try
            {
                MessageBox.Show("Hey");
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
            }
        }
    }
}

推荐答案

我遇到了同样的问题。似乎Exec方法由于某种原因没有被调用。我的代码如下所示：

I'm having the same problem.  It seems that the Exec method is not getting called for some reason.   My code looks like this:

public void Exec（ ref Guid pguidCmdGroup， uint nCmdId， uint nCmdExecOpt， ref object pvaIn， ref object pvaOut）

public void Exec(ref Guid pguidCmdGroup, uint nCmdId, uint nCmdExecOpt, ref object pvaIn, ref object pvaOut)

{

{

MessageBox < font size = 2> .Show（ " Hello World" ）;

}

我从未见过电子邮箱。我的类还实现了IObjectWithSite接口，并调用了这些方法。所以我把所有的逻辑放在那里。

 

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