MATLAB: Making a touchscreen keyboard using GUIDE pushbuttons

keyboardpushbuttonstouchscreen

Any help on this topic would be appreciated. I need this in the next 18 hours!

I am trying to create a GUI which has an edittext box and when you click on it, a keyboard made of pushbuttons pops up.

I want to know how to get this keyboard to work. One problem I am having is that it does not pop up immediately when I click the edittext, I have to press enter to make it come.

I'd like the keyboard to update the edittext box on the original GUI as I press the buttons!

Best Answer

I just answered something similar last week:

http://www.mathworks.com/matlabcentral/answers/72411#answer_82548

As for getting the editbox to poof the new window, you might have to use a regular textbox's 'ButtonDownFcn'. This is because an editbox will allow you to edit with the keyboard on click where a textbox gives you the ability program what happens when you click on it.

Related Solutions

MATLAB: GUI editbox can’t evoke a pushbotton

Callback for uicontrol style edit do not get invoked until the user presses enter or the user moves focus elsewhere. If you need control per key then you need the key press callback. However when you use the key press callback then the String property is not updated until the circumstances under which the Callback would be invoked and the display is not updated if you change the String property, so you have to keep track of characters yourself including keeping track of user deletion characters.

MATLAB: Finding the word in a string in an editbox

Ngozika - if you are using GUIDE to create your GUI, then you could try the following (which assumes that your pushbutton, edit text, and static text controls are named (tagged) as pushbutton1, edit1, and text1 respectively)

 function pushbutton1_Callback(hObject, eventdata, handles)
 strToCheck = char(get(handles.edit1,'String'));
 if ~isempty(strfind(strToCheck,'a'))
     set(handles.text1,'String','good');
 else
     set(handles.text1,'String','not good');
 end

In the above, we use strfind to determine if the character 'a' is within the string that the user typed in.

Best Answer

Related Solutions

MATLAB: GUI editbox can’t evoke a pushbotton

MATLAB: Finding the word in a string in an editbox

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