Generic function
Returns the Apply button in the specified dialog.
dialog-apply-button dialog => apply-button
<dialog-frame>.
false-or(<button>).
duim-frames
duim-frames
Returns the Apply button in dialog. As well as having OK and Cancel buttons, many dialogs also have an Apply button that lets the user apply the changes that have been made in the dialog, without removing the dialog from the screen itself.
dialog-cancel-button, page 750
dialog-apply-button-setter, page 746