% Create a progress bar.
hBar = waitbar ( 0, 'Please Wait....' );
% now use java to get to the progress bar
jFrame = get ( hBar, 'JavaFrame' ); % this will throw a warning
jFigPanel = jFrame.getFigurePanelContainer;
% Now go down through the children of the panel to get the container for the progress bar
jContainer = jFigPanel.getComponent(0);
jPanel = jContainer.getComponent(0);
% Change the location of the panel (ref pixels)
jPanel.setLocation(0,40);
% Change the size of the panel
jPanel.setSize(360,18);
% You then need to repaint and validate for the update to be visible.
jContainer.repaint
jContainer.revalidate

2楼: Originally posted by FMStation at 2016-08-25 22:38:26
https://www.mathworks.com/help/matlab/graphics_transition/why-is-the-children-property-empty-for-some-objects.html

Why Is the Children Property Empty for Some Objects?
Starting in R2014b, these o ...

c = colorbar;
w = c.LineWidth;
c.LineWidth = 1.5;

4楼: Originally posted by FMStation at 2016-08-26 21:32:38
Use colorbar properties to modify the colorbar.
https://www.mathworks.com/help/matlab/ref/colorbar-properties.html


c = colorbar;
w = c.LineWidth;
c.LineWidth = 1.5;