How to assign shortcuts to user interface control buttons?

A script I am using opens a user interface with several buttons. To make its use more efficient I want to access the control buttons (uicontrol) with a keypress instead of mouse click (both should be possible ideally). How to I do this if the function does a callback to another function (here: to 'newmaxmin')? Does this change anything?

xy = [0 0];
figmaxmin = figure('Units','pixels','KeyPressFcn', @keyPress, ...
    'Color',[0.5 0.8 0.8], ...
    'Name','Vérification des Max et Min', ...
    'MenuBar','figure', ...
    'NumberTitle','off', ...
    'Position',[100 50 900 650], ...
    'Resize','on',...
    'Tag','maxminFig',...
    'WindowButtonDownFcn','xy = get(gca,''CurrentPoint'');');

obj2.control2(1) = uicontrol('Parent',figmaxmin, ...
    'Units','pixels', ...
    'Style', 'pushbutton','Callback','newmaxmin(xy,''replacemax'')', ...
    'ForegroundColor',[1 1 1], ...
    'BackgroundColor',[1 0 0], ...
    'ListboxTop',0, ...
    'Position',[130 15 80 25], ...
    'String',' Déplacer Max', ...
    'Tag','Newmax');

obj2.control2(8) = uicontrol('Parent',figmaxmin, ...
    'Units','pixels', ...
    'Callback','newmaxmin(1,''fermer'')', ...
    'ListboxTop',0, ...
    'ForegroundColor',[0 0 0], ...
    'BackgroundColor',[1 1 1], ...
    'Position',[750 15 60 25], ...
    'String','Fermer', ...
    'Tag','Fermer');

Answer 1

[Kevin Phung]

You can assign a callback to the 'WindowKeyPressFcn' for your figure.

implement code to that callback that will evaluate the char that is pressed and will call another callback function (for example, your newmaxmin(xy,''replacemax'')).