Which richTextBox Event to use ?
I want to call the bellow function every time the content(NOT ONLY THE COLOR) of richTextBox change
void rTBOnContentChanged(.....)
{
//bellow I will not change the content of the richTextBox
....................
// here I want to have FULL UPDATED the content of the richTextBox
....................
// here I make changes to its color
....................
}