[Iup-users] How to create a text box that allows 3 characters only

[Steven Mak]

Hi,

How to create a textbox which only permits a user enter no more than 3 characters?

  _text_ip_1 = IupText("myaction");
  IupSetAttribute(_text_ip_1, IUP_SIZE,  "30");

Also, I read from the document that "Width in 1/4's of the average width of a      character for the current FONT of each control.". I didn't get it. What is the proper way to set the size of the textbox to cater 3 characters? Is there any example on this?

I didn't set any FONT attribute. How I retrieve the FONT size? 

Thank you,
Steven

       
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