Windows Form Application: C++ Text Editing Program Questions

[Shadowhunter9636]

I am trying to make a text editing program in Visual C++. I know how to show the Save File Dialog, but I want to know how to actually save the text in my RichTextBox1 as a file. I also want to know how to set the font size of the richtextbox1 text to a variable. To put more insight into it, I have created a variable called fontsize. Fontsize is equal to the value of a numericUpDown (fontsize = (int)numericUpDown1->Value). Now, I want the font size of the actual text to be equal to the value of my font size variable. How do I do this? Please help.

[buyong]

please reference msdn example : wordpad sample(MFC)