MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Instrukcja Użytkownika Pobierz pdf (Strona 203)

Examples: Programming GUI Components

8-31

default). From the Layout Editor select Tools -> GUI Options -> Command

Line Accessibility: Callback

. See “Command-Line Accessibility” on page 5-10

for more information about how this option works.

ActiveX Control

This example programs a sample ActiveX control Mwsamp Control. It first

enables a user to change the radius of a circle by clicking on the circle. It then

programs a slider on the GUI to do the same thing.

• “Programming an ActiveX Control” on page 8-31

• “Programming a User Interface Control to Update an ActiveX Control” on

page 8-34

This topic also discusses:

• “Viewing the Methods for an ActiveX Control” on page 8-35

• “Saving a GUI that Contains an ActiveX Control” on page 8-36

• “Compiling a GUI that Contains an ActiveX Control” on page 8-37

Note See MATLAB COM Client Support in the online MATLAB

documentation to learn more about ActiveX controls.

Programming an ActiveX Control

The sample ActiveX control Mwsamp Control contains a circle in the middle

of a square

. This example programs the control to change the circle radius

when the user clicks the circle, and to update the label to display the new

radius.

1 Add the sample ActiveX control Mwsamp to your GUI and resize it to

approximately the size of the square shown in the preview pane. The

following figure shows the ActiveX control as it appears in the Layout

Editor.

If you need help adding the component, see “Adding Components to the

Layout Area” on page 6-18.

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