MATLAB: How to position a GUI created using GUIDE at a particular place on the screen

MATLAB

I use GUIDE to build a GUI. GUIDE places the GUI in a default position which is the center of the screen. I would like to change the GUI's default position.

Best Answer

You can position the GUI at a particular place on the screen by adjusting the GUI’s "Position" property in the program file corresponding to the GUI. For example:

set( hObject , 'Units' , 'normalized' )
figureposition = get( hObject , 'Position' ) ;
set( hObject , 'Position' , ...
      [ (1-figureposition(3))/2 , 0.98-figureposition(4) , ...
      figureposition(3) , figureposition(4) ] )

positions the GUI at the left top corner of the screen.

Related Solutions

MATLAB: Placing 2 related GUI’s

Launch your second gui as:

hFig2 = SecondGUI;
set( hFig2, 'Position', [x y width height] );

where [x y width height] are whatever you want them to be taken from the GUI that is launching the second GUI.

You can get the current GUI's position using it's tag as e.g.

get( hFig1, 'Position' )

If you prefer you can pass position as an argument when you launch your second GUI:

hFig2 = SecondGUI( 'Position', [x y width height] );

MATLAB: Linking multiple GUI’s when moving the Main GUI

Ciuban - you can try adding a listener (see learn to use events and listeners) to capture the movement of the main GUI so that when its position changes, the other three GUIs position changes as well. For example, suppose that we have two GUIs, the main one and a smaller one that is situated to the right of the main one. The main GUI (named/tagged as Gui1) launches the second GUI (named/tagged Gui2). Within the OpeningFcn of the first we do

 function Gui1_OpeningFcn(hObject, eventdata, handles, varargin)
 % Choose default command line output for Gui1
 handles.output = hObject;
 % place Gui1 in centre of screen
 movegui(hObject,'center');
 % launch Gui2 and move to right of Gui1
 handles.hGui2 = Gui2('Visible','off');
 gui1Pos = get(hObject,'Position');
 gui2Pos = get(handles.hGui2,'Position');
 gui2Pos = [gui1Pos(1)+gui1Pos(3)+5 gui1Pos(2) gui2Pos(3) gui2Pos(4)];
 set(handles.hGui2,'Position',gui2Pos,'Visible','on');
 % save the current GUI positions
 handles.gui1Pos = gui1Pos;
 handles.gui2Pos = gui2Pos;
 % add a listener to respond to position changes of Gui1
 handles.gui1PosListener = ...
    addlistener(hObject, 'Position', 'PostSet', @(src,event)onGui1PosChange(src,event,hObject));
 % Update handles structure
 guidata(hObject, handles);

In the above, we centre the main GUI and then move the other GUI to the right of the first one. The listener is created to respond to changes in position of the main GUI. We define the callback for this listener as

 function onGui1PosChange(~,~,hGui)
 % get the handles for Gui1
 handles = guidata(hGui);
 % determine the change in position for Gui1
 newGui1Pos        = get(hGui,'Position');
 gui1PosDelta      = handles.gui1Pos - newGui1Pos;
 gui1PosDelta(3:4) = 0; % don't want any change to width and height
 % determine the new position for Gui2
 newGui2Pos = handles.gui2Pos - gui1PosDelta;
 set(handles.hGui2,'Position',newGui2Pos);
 % save the new positions
 handles.gui1Pos = newGui1Pos;
 handles.gui2Pos = newGui2Pos;
 guidata(hGui,handles);

Here, we determine the change in position of the first GUI (with respect to its x and y position) and then apply that change to the second GUI.

The attached code uses the above to keep the two GUIs positioned together. From the Command Line, just type

 Gui1

to test this out. Note that the second GUI only moves after the first GUIs position has been finalized (i.e. after you release the mouse button). Try it out and see what happens!

Best Answer

Related Solutions

MATLAB: Placing 2 related GUI’s

MATLAB: Linking multiple GUI’s when moving the Main GUI

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