Delayed auto recall - %dl

In this section:

• Caption - %ca[title]
• Window handle - %hw
• Control handle - %lc
• Leave window open - %lw[option]
• Start-up call-back - %sc
• Child window - %ch
• Control variable - %cv
• Create MDI frame - %fr
• Attach window - %aw
• Drag and drop - %dr
• Set window position - %sp
• Set window size - %sz
• Window style - %ww[options]
• Background colour - %bg[colour]
• ClearWin window - %N.Mcw[options]
• Property sheet - %Nps
• Property sheet child - %sh
• Closure control format - %cc
• Delayed auto recall - %dl
• Wallpaper - %wp[bitmap]
• User window - %uw[class_name]
• Screen saver - %sv
• Disable screen saver - %ns
• Taskbar icon - %ti

%dl (Timer) allows a given call-back function to be called at regular intervals. It takes a DOUBLE PRECISION argument that is the number of seconds to wait between calls followed by the given call-back.

The following code produces a window that displays its message for two seconds before closing:

i=winio@('%dl%si!Testing',2.0D0,'EXIT')

Note: Timing messages are only received while the program is idle.