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| function terminateExecution
%terminateExecution Emulates CTRL-C
% terminateExecution Stops operation of a program by emulating a
% CTRL-C press by the user.
%
% Running this function
%
%Example:
%for ix = 1:100
% disp(ix)
% if ix>20
% terminateExecution;
% end
%end
%1) request focus be transferred to the command window
% (H/T http://undocumentedmatlab.com/blog/changing-matlab-command-window-colors/)
cmdWindow = com.mathworks.mde.cmdwin.CmdWin.getInstance();
cmdWindow.grabFocus();
%2) Wait for focus transfer to complete (up to 2 seconds)
focustransferTimer = tic;
while ~cmdWindow.isFocusOwner
pause(0.1); %Pause some small interval
if (toc(focustransferTimer) > 2)
error('Error transferring focus for CTRL+C press.')
end
end
%3) Use Java robot to execute a CTRL+C in the (now focused) command window.
%3.1) Setup a timer to relase CTRL + C in 1 second
% Try to reuse an existing timer if possible (this would be a holdover
% from a previous execution)
t_all = timerfindall;
releaseTimer = [];
ix_timer = 1;
while isempty(releaseTimer) && (ix_timer<= length(t_all))
if isequal(t_all(ix_timer).TimerFcn, @releaseCtrl_C)
releaseTimer = t_all(ix_timer);
end
ix_timer = ix_timer+1;
end
if isempty(releaseTimer)
releaseTimer = timer;
releaseTimer.TimerFcn = @releaseCtrl_C;
end
releaseTimer.StartDelay = 1;
start(releaseTimer);
%3.2) Press press CTRL+C
pressCtrl_C
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function pressCtrl_C
import java.awt.Robot;
import java.awt.event.*;
SimKey=Robot;
SimKey.keyPress(KeyEvent.VK_CONTROL);
SimKey.keyPress(KeyEvent.VK_C);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function releaseCtrl_C(ignore1, ignore2)
import java.awt.Robot;
import java.awt.event.*;
SimKey=Robot;
SimKey.keyRelease(KeyEvent.VK_CONTROL);
SimKey.keyRelease(KeyEvent.VK_C); |
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