Open Fruity Loops and create a new track by selecting "File" and "New Track." Apply the virtual drum synth of your choice. Open the piano roll by selecting "View" and "Piano Roll." The piano roll is segmented into sixteen blocks each representing one sixteenth of a full measure.
Program the kick drum by clicking on the pitch key associated with the kick drum. To add notes to the piano roll, double that pitch within the piano roll. Within a measure, place the kick drum at the first, eleventh and fifteenth beat.
Program the snare by clicking on the pitch key associated with the snare drum. Within a measure, double click the snare drum at the fifth and thirteenth beats.
Program the closed-hi-hat by clicking on the pitch key associated with the closed-hi-hat drum. Within a measure, double click the closed-hi-hat drum at the third through sixteenth beats.
Program the open-hi-hat by clicking on the pitch key associated with the open-hi-hat drum. Within a measure, double click the open-hi-hat drum at the first beat.