Put up a Windows dialog box to communicate with the user. There are
various types, either for the user to select from a set of buttons or
to edit a string.
character. The type of dialog box. It will have the
buttons implied by its name.
message
character. The information field of the dialog
box. Limited to 255 chars (by Windows, checked by R).
default
character. The default string.
Value
For winDialog a character string giving the name of the button
pressed (in capitals) or NULL (invisibly) if the user had no
choice. For winDialogString a string giving the contents of the text
box when Ok was pressed, or NULL if Cancel was pressed.
See Also
winMenuAddfile.choose to select a file
package windlgs in the package source distribution for ways to
program dialogs in C in the GraphApp toolkit.