示例#1
0
 /// <include file='doc\LanguageService.uex' path='docs/doc[@for="LanguageService.ScrollToEnd2"]/*' />
 public void ScrollToEnd(IVsTextView view) {
     IVsTextLines buffer;
     NativeMethods.ThrowOnFailure(view.GetBuffer(out buffer));
     int lines;
     NativeMethods.ThrowOnFailure(buffer.GetLineCount(out lines));
     int lineHeight;
     NativeMethods.ThrowOnFailure(view.GetLineHeight(out lineHeight));
     Microsoft.VisualStudio.NativeMethods.RECT bounds = new Microsoft.VisualStudio.NativeMethods.RECT();
     NativeMethods.GetClientRect(view.GetWindowHandle(), ref bounds);
     int visibleLines = ((bounds.bottom - bounds.top) / lineHeight) - 1;
     int top = Math.Max(0, lines - visibleLines + 4);
     NativeMethods.ThrowOnFailure(view.SetTopLine(top));
 }
        /// <include file='doc\LanguageService.uex' path='docs/doc[@for="LanguageService.ScrollToEnd2"]/*' />
        public void ScrollToEnd(IVsTextView view)
        {
            IVsTextLines buffer;
            NativeMethods.ThrowOnFailure(view.GetBuffer(out buffer));
            int lines;
            NativeMethods.ThrowOnFailure(buffer.GetLineCount(out lines));
            int lineHeight;
            NativeMethods.ThrowOnFailure(view.GetLineHeight(out lineHeight));
            Microsoft.VisualStudio.NativeMethods.RECT bounds = new Microsoft.VisualStudio.NativeMethods.RECT();
            NativeMethods.GetClientRect(view.GetWindowHandle(), ref bounds);
            int visibleLines = ((bounds.bottom - bounds.top) / lineHeight) - 1;
            // If the view hasn't been shown yet, the bounds will be empty, yielding -1 for visibleLinse.
            if (visibleLines < 0) {
                visibleLines = 0;
            }

            // The line number needed to be passed to SetTopLine is ZERO based, so need to subtract ONE from number of total lines
            int top = Math.Max(0, lines - visibleLines - 1);
            Debug.Assert(lines > top, "Cannot set top line to be greater than total number of lines");
            NativeMethods.ThrowOnFailure(view.SetTopLine(top));
        }