if found exe file eye tracker

السلام عليكم عندي مشكلة اريد افحص داخل while اذا كان file exe مفتوح اولا

في حال كان مفتوح يدخل ينفذ كود يجلب بيانات من جهاز eye tracker x,y, time stmp

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myex('connect')

% open tracking window, set axes to screen size

%pause(10)

b=system('E:\master\project\Matlab Code\myex-master\myex-master\pictureShow2.exe');

% clear any data in buffer

myex('getdata');

% allow to track until window closed

x_all = [];

%while size(findobj(b))>0

%while ishandle(b) % check if exe still open احاول تشغل احد هذي

%while exist('pictureShow2.exe', 'file')

%[~,b] = system('tasklist');

%IsRunning = contains(b, 'pictureShow2.exe'); %1, if is running / 0, if not

%while IsRunning==1

j=0;

while (j<30) % check if figure still open

% get data

x = myex('getdata');

% pause(1);

%if data returned

if ~isempty(x)

% determine eyeball distance

z_mm = x(end,[8 11]);

isvalid = x(end,[4 5])==1;

isvalid = isvalid & (z_mm>0.001); % defensive (shouldn't be necessary)

z_mm = z_mm(isvalid);

z_mm = nanmean(z_mm);

% add data to store

x_all = [x_all; x]; %#ok<AGROW> This is innefficient memory-allocation, but ok for present purposes

else

%set(hTxt, 'String', 'Waiting for data');

end

pause(1/50); % run at 50 Hz

j=j+1;

end