Specifications

3 Laying Out GUIs and Setting Properties
3-32
GUI Allows Only One Instance to Run (Singleton)
This option allows you to select between two behaviors for the GUI figure:
• Allow MATLAB to display only one instance of the GUI at a time.
• Allow MATLAB to display multiple instances of the GUI.
If you allow only one instance, MATLAB reuses the existing GUI figure
whenever the command to run the GUI is issued. If a GUI already exists,
MATLAB brings it to the foreground rather than creating a new figure.
If you clear this option, MATLAB creates a new GUI figure whenever you issue
the command to run the GUI.
Using the System Background Colors
The color used for GUI components varies on different computer systems. This
option enables you to make the figure background color the same as the default
uicontrol background color, which is system dependent.
If you select
Use system color scheme for background (the default), GUIDE
changes the figure background color to match the color of the GUI components.
The following figures illustrate the results with and without system color
matching.