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C# WinForms Application Full Integration with HTMLHelp ( .chm ) - Help Topics, Context Sensitive Help, and Tooltips

, 4 May 2011 CPOL
Use HTMLHelp (.chm) to display help topics, context sensitive help and tooltips in C# Winform application
using System;
using Microsoft.VisualStudio.OLE.Interop;


namespace WinHelpLib
{
    class IStorageEx
    {
        IStorage iStorage;

        public IStorageEx(IStorage iStr)
        {
            iStorage = iStr;
        }

        public IStorageEx OpenStorage(string sName)
        {
            IStorage iSt = null;
            iStorage.OpenStorage(sName, null, IDocFileEx.STGM_READ, new IntPtr(0), 0, out iSt);
            if (iSt != null)
            {
                return new IStorageEx(iSt);
            }
            return null;
        }

        public IStreamEx OpenStream(string sName)
        {
            IStream iStream = null;
            iStorage.OpenStream(sName, new IntPtr(0), IDocFileEx.STGM_READ, 0, out iStream);
            if (iStream != null)
            {
                return new IStreamEx(iStream);
            }
            return null;
        }


        IEnumSTATSTG iEnumData;
        public void EnumStart()
        {
            iStorage.EnumElements(0, new IntPtr(0), 0, out iEnumData);
        }

        public bool EnumNext(ref string sName,ref STGTY sType)
        {
            STATSTG[] stg = new STATSTG[1];

            UInt32 uiFetched = 0;

            if (iEnumData.Next(1, stg, out uiFetched) != IDocFileEx.S_OK)
                return false;

            if (uiFetched != 1)
                return false;

            sName = stg[0].pwcsName;
            sType = (STGTY)stg[0].type;

            return true;


        }



    }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Veselin Tenev
Software Developer (Senior)
United Kingdom United Kingdom
No Biography provided

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