How can I execute a double-click callback without executing the single-click callback in my MATLAB GUI?
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In order to set a double-click callback for my figure, I must set the SelectionType property to "open." However, when I double-click on my figure, MATLAB cycles the SelectionType through "normal" while I am clicking. This triggers my single-click callback. Thus both callbacks are executed instead of only my double-click callback.
采纳的回答
MathWorks Support Team
2011-12-5
You can use the following sample code to cause your application to execute only the double-click callback:
Associate this function with 'WindowButtonDownFcn' callback of the figure window.
function clickcallback(obj,evt)
persistent chk
if isempty(chk)
chk = 1;
pause(0.5); %Add a delay to distinguish single click from a double click
if chk == 1
fprintf(1,'\nI am doing a single-click.\n\n');
chk = [];
end
else
chk = [];
fprintf(1,'\nI am doing a double-click.\n\n');
end
更多回答（1 个）
CAM
2015-3-26
0 个投票
I am disappointed that GUI's do not (apparently) support the double-click option in SelectionType. Why is there no disclaimer in the help files about this?
When will this bug be fixed?
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