UICONTROLPROPERTIES UI Control Properties

Section: Handle-Based Graphics

Usage

Below is a summary of the properties for user interface controls.
• backgroundcolor - colorspec - The background color for the widget.
• busyaction - Not used.
• buttondownfcn - Not used.
• callback - string - the callback to execute when the GUI control does its action. Clicking a button or moving a scroller will cause the callback to be executed. Also, pressing enter in a text box causes the callback to be executed.
• cdata - an M x N x 3 array that represents an RGB image to use as the truecolor image displayed on push bottons or toggle buttons. The values must be between 0 and 1.
• children - Not used.
• createfcn - Not used.
• deletefcn - Not used;
• enable - {'on','inactive','off'} - For on (the default) the uicontrol behaves normally. For inactive, it is not operational, but looks the same as on. For off, the control is grayed out.
• extent - a read only property that contains the extent of the text for the control.
• fontangle - {'normal','italic','oblique'} - The angle of the fonts used for text labels (e.g., tick labels).
• fontsize - scalar - The size of fonts used for text labels (tick labels).
• fontunits - Not used.
• fontname - string - The name of the font to use for the widget.
• fontweight - {'normal','bold','light','demi'} - The weight of the font used
• foregroundcolor - colorspec - the foreground color for text.
• handlevisibility - Not used.
• hittest - Not used.
• horizontalalignment - {'left','center','right} - determines the justification of text.
• interruptible - Not used.
• keypressfcn - functionspec - a string or function handle that is called when a key is pressed and a uicontrol object has focus.
• listboxtop - a scalar (used only by the listbox style of uicontrols) that specifies which string appears at the top of the list box.
• max - a scalar that specifies the largest value allowed for the value property. The interpretation varies depending on the type of the control \begin{itemize}
• check boxes - specifies what value is set to when the check box is selected.
• edit box - if max-min>1 then the text box allows for multiple lines of input. Otherwise, it is a single line only.
• list box - if max-min>1 then multiple item selections are allowed. Otherwise, only single item selections are allowed.
• radio buttons - specifies what value is set to when the radio button is selected.
• slider - the maximum value the slider can take.
• toggle button - specifies what value is set to when the toggle button is selected.
\item min - a scalar that specifies the smallest value for the value property. The interpretation of it depends on the type of the control
• check boxes - specifies what value is set to when the check box is not selected.
• edit box - if max-min>1 then the text box allows for multiple lines of input. Otherwise, it is a single line only.
• list box - if max-min>1 then multiple item selections are allowed. Otherwise, only single item selections are allowed.
• radio buttons - specifies what value is set to when the radio button is not selected.
• slider - the minimum value the slider can take.
• toggle button - specifies what value is set to when the toggle button is not selected.
\item parent - the handle of the parent object. \item position - size and location of the uicontrol as a four vector [left, bottom, width, height]. If width>height then sliders are horizontal, otherwise the slider is oriented vertically. \item selected - {'on','off'} - not used. \item selectionhighlight - {'on','off'} - not used. \item sliderstep - a two vector [min_step max_step] that controls the amount the slider value changes when you click the mouse on the control. If you click the arrow for the slider, the value changes by min_step, while if you click the trough, the value changes by max_step. Each value must be in the range [0,1], and is a percentage of the range max-min. \item string - string - the text for the control. \item style - @|{'pushbutton','toggle','radiobutton','checkbox', 'edit','text','slider','frame','listbox','popupmenu'}|. \item tag - string - user specified label. \item tooltipstring - string the tooltip for the control. \item type - string - the text is set to 'uicontrol'. \item uicontextmenu - handle the handle of the uicontextmenu that shows up when you right-click over the control. \item units - not used. \item userdata - array - any data you want to associate with the control. \item value - The meaning of this property depends on the type of the control:
• check box - set to max when checked, and min when off.
• list box - set to a vector of indices corresponding to selected items, with 1 corresponding to the first item in the list.
• pop up menu - set to the index of the item selected (starting with 1)
• radio buttons - set to max when selected, and set to min when not selected.
• sliders - set to the value of the slider
• toggle buttons - set to max when selected, and set to min when not selected.
• text controls, push buttons - do not use this property.
\item visible - {'on','off'} - controls whether the control is visible or not \end{itemize}