MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guía de usuario descargar pdf (Pagina 554)

100

101

11 Lay Out a Programmatic GUI

for the current value of the property, or '' for an invalid

property nam e.

setstr = setprop(objhandle,prop erty,value) returns a SET

command for the specified value of the propert y, or '' for

an invalid property name or value. If prop erty is empty,

the listbox GUI opens to le t you choose a property name.

The value can be a string, scalar, vector, cell array, HG

handle or function handle. Properties consisti ng of structs

or objects are disregarded and return '' ( empt y).

If you call se tpro p with no input arguments, it prompts you to select a

component or other graphic o bject. Click to select the object you want to

set and press Enter. You then select a property of the object from a dialog

box and a set string with its value is returned. When you select an object

interactively in this way,

setprop has no knowledge of its variable nam e.

Therefore, it returns a generic variable name, which is:

• The

Style of a uicontrol object (e.g., “slider” or “text”)

• The

Type of an object having no Style property, (e.g., “figure” or “axes”)

You should replace the generic name with the variable name of its handle

after pasting the set string into your code file.

Here is the output of

setprop for a String property:

setprop(object_handle,'String')

ans =

set(object_handle,'String','Generat e Data')

Youcanassignastringinthecalltosetprop. To create multiline strings,

use a cell array. F or example:

setstr = setprop(object_handle,'st ring',{'eggs','milk','fl our','sugar'})

setstr =

set(object_handle,'String',{'eggs', 'milk','flour','sugar'})

You can abbreviate property names as long as you make them unique. For

example, obtain a

Position property set string:

11-66

1 2 ... 549 550 551 552 553 554 555 556 557 558 559 ... 758 759

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