waitforbuttonpress (MATLAB Function Reference)

Wait for key or mouse button press

Syntax

k = waitforbuttonpress

Description

k = waitforbuttonpress

blocks the caller's execution stream until the function detects that the user has pressed a mouse button or a key while the figure window is active. The function returns

0 if it detects a mouse button press
1 if it detects a key press

Additional information about the event that causes execution to resume is available through the figure's CurrentCharacter, SelectionType, and CurrentPoint properties.

If a WindowButtonDownFcn is defined for the figure, its callback is executed before waitforbuttonpress returns a value.

Example

These statements display text in the Command Window when the user either clicks a mouse button or types a key in the figure window:

w = waitforbuttonpress;
if w == 0
    disp('Button press')
else
    disp('Key press')
end