How to prevent a background subsystem from opening
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it's known that the only way to create colored backgrounds for block groups in Simulink is to create empty masked subsystems and place them behind the blocks ("Send to back") However, I've noticed that when I click on such a background, the contents of the subsystem open up (i.e. an empty white field, because the "background" subsystem is usually created without any blocks inside). Is it possible to prevent a subsystem from opening by clicking, so that nothing happens when a subsystem is clicked?
采纳的回答
TAB
2015-4-7
Just close the subsystem as soon as they open from "OpenFun" callback of subsystem. Goto Block Properies >> Callbacks >> OpenFcn and write
close_system(gcbh);
in OpenFcn callback
更多回答（2 个）
Sebastian Castro
2015-4-6
1 个投票
The easiest thing, although not necessarily the most feasible, would be to upgrade to R2015a if you can. In this release, Simulink has new Area Annotations.
- Sebastian
ashish ahir
2015-4-8
0 个投票
simple way may be to select the blocks you want to put under one section and give them seperate background colour.
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