VISIO::RADIO (int grid, int group, int xpos, int ypos, int xsize, int ysize, string caption)

Description: Creates a radio button on grid 'grid'. The second argument defines the radiobutton group. Every radiobutton belongs to a group of buttons and in this group only one button can be 'pressed'. By passing the group ID, Visio automatically deactivates other buttons when a specific radiobutton is pressed. The group numbering must start with '1' and can have a maximum value of '64'. The radiobutton has coordinates 'xpos' and 'ypos', and the width is determined by 'xsize' and the height by 'ysize'. Finally a text 'caption' is placed on the radiobutton. There can be a maximum of 256 radiobuttons in your application. Returns the ID of the created radiobutton.

Example: radio = VISIO::RADIO (grid, 1, 0, 0, 3, 1, "Option 1")