Using RichTextBox to import molecular formula and calculate molecular weight
Lu Dao · Journal of Zhenjiang College · 2001
As an ActiveX control of Visual BASIC,RichTextBox is a text-input field which supports a few types of word formats.With the field in use,after the format of word input is set,the molecular fomula can be input conveniently,and when the input text is recognized,the molecular weight of random formula can be quickly calculated and displayed.