Question

我们有一个函数可以获取word文档中查看文本的范围。但是，我们在函数的前几行中得到了COMException。每10秒钟使用一个固定的计时器调用该函数。

我们正在处理这个问题很长一段时间，并感谢任何帮助/提示，谢谢。

private void GetViewedText()
    {
        // get the rectangle shown on the screen
        IntPtr h = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle;

        h = FindWindowExW(h, new IntPtr(0), "_WwF", "");        
        h = FindWindowExW(h, new IntPtr(0), "_WwB", this.Application.ActiveDocument.Name);

        h = FindWindowExW(h, new IntPtr(0), "_WwG", "Microsoft Word Document");       

        RECT tagRect = new RECT();
        GetWindowRect(h, out tagRect);
        //-------------------------------------------------------------------------------------------------------

        //get the range in the doc from the rect
        // problem with "ActiveDocument" or "ActiveWindow"
        Word.Range r1 = (Word.Range)this.Application.ActiveWindow.RangeFromPoint(tagRect.left, tagRect.top); 

        Word.Range r2 = (Word.Range)this.Application.ActiveWindow.RangeFromPoint(tagRect.right, tagRect.bottom);

        Word.Range r = this.Application.ActiveDocument.Range(r1.Start, r2.Start);
        //-------------------------------------------------------------------------------------------------------

        //for each paragraph we increase the number of times read it and change the color
        for (int p = 1; p <= r.Paragraphs.Count; p++)
        {
            Word.Range rPar = document.Range(r.Paragraphs[p].Range);
            Word.Range rParNum = document.Range(rPar.Start, rPar.Start + 1);
            Word.Range rParText = document.Range(rPar.Start + 1, rPar.End);
            try
            {
                int parNum = Int32.Parse(rParNum.Text);
                paragraphs[parNum].ReadParagrafh();
                if (paragraphs[parNum].GetCounter() == 1)
                {
                    rParText.HighlightColorIndex = Word.WdColorIndex.wdYellow;
                }
                else if (paragraphs[parNum].GetCounter() == 2)
                {
                    rParText.HighlightColorIndex = Word.WdColorIndex.wdBrightGreen;
                }
                else
                {
                    rParText.HighlightColorIndex = Word.WdColorIndex.wdGreen;
                }
            }
            catch
            {
                continue;
            }
        }
    }

Answer 1

因为基于0的索引引用而崩溃吗？

for (int p = 1; p <= r.Paragraphs.Count; p++)

更改为

for (int p = 0; p < r.Paragraphs.Count; p++)

很多东西都是基于0的。假设你有4个段落。在文档内部，它们被引用为

paragraph[0], paragraph[1], paragraph[2], paragraph[3]

或

paragraph[1], paragraph[2], paragraph[3], paragraph[4]

段落的COUNT可能是4，但是引用为0-3 ...事情可能已经正常工作，例如：10段，并且它从1-9开始全部有效（因为10个条目将是0-9 ），但是当你尝试第10次时，没有这样的参考。

评论反馈......

从1开始，也许您应该尝试预先检查范围的NULL？

if( r.Paragraphs[p].Range == null )
   continue;

Word.Range rPar = document.Range(r.Paragraphs[p].Range);

Answer 2

修复它，不得不删除document.Range所以新行是：

Word.Range rPar = r.Paragraphs [p] .Range;

COMException在MS Word中未处理

2 个答案: