MATLAB: When you pause MATLAB and a uicontrol has focus, pressing a keyboard key does not cause MATLAB to resume. Click anywhere outside a uicontrol and then press any key. For more information, see the pause function

guimatlab gui

what does it mean?

When you pause MATLAB and a uicontrol has focus, pressing a keyboard key does not cause MATLAB to resume. Click anywhere outside a uicontrol and then press any key. For more information, see the pause function

where outside the gui should I press- because pause is a general command, and in my figure I have all sorts of UIcontrols so, how can I tell which one is with focus?

Best Answer

Do not click outside the GUI: click in any area of the figure that is blank space, where there is no uicontrol() and no graphic.

Related Solutions

MATLAB: Key press in GUI

You can catch such keys in the WindowKeypressFcn. This will help you to identify the names of the pressed keys:

FigH = figure
set(FigH, 'WindowKeyPressFcn', @KeyPress)
function KeyPress(Source, EventData)
disp(EventData)

Another idea is to use the (still undocumented?) "CurrentKey" and "CurrentModifier" properties of the FIGURE.

MATLAB: What does it mean when a UICONTROL is in “focus” in MATLAB

A UICONTROL such as a pushbutton is in focus when it is the last UICONTROL with which a user interacted or when the tab key is used to choose that UICONTROL. For a pushbutton, the dotted line around the pushbutton indicates that it is in focus.

Pressing the spacebar triggers the callback of the UICONTROL which is in focus. Note that a UICONTROL only becomes the current object when its callback is called. Clicking on pushbuttons, checkboxes, radiobuttons, sliders, listboxes and togglebuttons calls their callback, and sets them to be the current object. Edit controls, however, operate differently - they do not call their callback until they lose focus, or until you hit Enter.

For example, you can run your GUI and initially click on a UICONTROL to give it focus. When you press the Tab key, you can expect the GUI to tab through the other UICONTROLS.

Note that there is a bug in MATLAB 6.5 (R13) which does not display which UICONTROL receives focus. For more information, refer to the following solution:

http://www.mathworks.com/support/solutions/data/1-1BUJ9.html

For information on how to give focus to a particular UICONTROL, refer to the following solution:

http://www.mathworks.com/support/solutions/data/1-16HAI.html

Best Answer

Related Solutions

MATLAB: Key press in GUI

MATLAB: What does it mean when a UICONTROL is in “focus” in MATLAB

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