//uses invoke to update ui code from a different thread
public void UpdateInfo(string code)
{
try
{
if (!InvokeRequired)
{
TB_Info.Text = code;
TB_Info.SelectionColor = Color.Yellow;
TB_Info.SelectionBackColor = Color.White;
TB_Info.Refresh();
}
else
{
Invoke(new Action <string>(UpdateInfo), code);
}
}
catch { }
}
//uses invoke to update highlighted lines of code from a different thread
public void UpdateBox(int line, int line2)
{
try
{
if (!InvokeRequired)
{
//need to scroll?
bool scroll = false;
//character locations of start and end of highlight
var startIndex = TB_Info.GetFirstCharIndexFromLine(line - 1);
var endIndex = TB_Info.GetFirstCharIndexFromLine(line2);
//if the highlighted lines are above previously highlighted ("off screen") then scroll
if (TB_Info.SelectionStart > startIndex)
{
scroll = true;
}
//highlight
TB_Info.Select(startIndex, (endIndex - 1) - startIndex);
//refresh ui element
TB_Info.Refresh();
//give element focus
TB_Info.Focus();
//if needed scroll to the right location
if (scroll)
{
TB_Info.ScrollToCaret();
}
}
else
{
Invoke(new Action <int, int>(UpdateBox), line, line2);
}
}
catch { }
}
