MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Uživatelská příručka stáhnout pdf (Strana 735)

100

101

Icon Editor

• “Retrieve Output o n R eturn from a GUI” on page 15-73

• “Protect a GUI from Inadvertent Access” on p age 15-74

• “Run a GUI on Multiple Platforms” on page 15-75

• “Make a GUI Modal” on page 15-76

• “Share Data Between Two GUIs” on page 15-77

• “Achieve Proper Resize Behavior” on page 15-78

Return Only After the User Makes a Choice

At the end of the initialization code, and just before returning, iconEditor calls

uiwait with the handle of the main figure to make the GUI blocking.

% Make the GUI blocking

uiwait(hMainFigure);

% Return the edited icon CD ata if it is requested

mOutputArgs{1} =hMainFigure;

mOutputArgs{2} =mIconCData;

if nargout>0

[varargout{1:nargout}] = mOutputAr gs{:};

end

Placement of the call to ui wait is important. C allin g ui wait stops the

sequential execution of

iconEdit.m after the GUI initializes and just before

the file would return the edited icon data.

When the user clicks the OK button, its callback,

hOKButtonCallback,calls

uiresume whichenablesthecodefiletoresumeexecutionwhereitstopped

and return the edited icon data.

function hOKBut tonC allback(hObject, ev entd ata)

% Callback called when the OK button is pr essed

uiresume;

delete(hMainFigure);

end

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