However, that being said you might be able to still get some level of protection with this approach. The following table lists the callbacks and components that use event data. If you want the axes ButtonDownFcn callback function to be executed regardless of where you click in the axes. Perhaps going to uitab is the best bet? I'm trying to implement a buttondownfcn callback in an app I'm building use AppDesigner. Why after plotting on axes the ButtonDownFcn. Obtain the handle of the axes whose property you want to change from the handles structure and explicitly use that handle in your code to ensure you're modifying the property of the axes you think you are. Callback Property User Action Components That Use This Property ButtonDownFcn End user presses a mouse button while the pointer is on the component or figure.
Uicontrol, figure OffCallback Control action. In the meantime, you can access the callback directly and invoke it in a unit test. Has anyone had the same issue or know of a way to work around it? The Callback callback should fire when the uicontrol is activated. Generally speaking, I am looking for a way to monitor a variable and execute a callback when the variable changes value. Activated means different things for different uicontols - for a pushbutton it means that the pushbutton is pushed, for a checkbox it means that the checkbox is selected or deselected, for an editbox it means that the text contents are modified.
For the toggle tool, this is independent of its state. The description seems to suggest that they do the same thing. Activated means different things for different uicontols - for a pushbutton it means that the pushbutton is pushed, for a checkbox it means that the checkbox is selected or deselected, for an editbox it means that the text contents are modified The ButtonDownFcn callback should fire when you press the mouse button down over the uicontrol, whether or not you release the mouse button, and whether or not your action eventually activates the uicontrol. Uitoggletool ResizeFcn Executes when a user resizes a panel or button group whose Resize behavior is set to Other. When you are setting the buttondownfcn you are doing so for the images, not for the axes. For example, a uipanel has four callback properties: ButtonDownFcn, CreateFcn, DeleteFcn, and ResizeFcn.
Callback Property Description Components ButtonDownFcn Executes when the user presses a mouse button while the pointer is on or within five pixels of a component. For example, this uicontrol command creates a push button and specifies the Callback property to be an anonymous function. Leaving plot to decide for itself which axes to plot on is always risky - it will do so based on whatever is in focus which, within code, may not be what you think it is, which is the essence of Steven's original answer with respect to gca. When you are setting the buttondownfcn you are doing so for the images, not for the axes. The second argument provides event data to the callback function. Doing so leaves you at the mercy of anyone who can change which axes is current which may include anyone who has control over the mouse.
WindowKeyPressFcn End user presses a key while the pointer is on the figure or any of its child objects. Executes, for example, when a user clicks a push button or selects a menu item. For example: selecting a menu item, moving a slider, or pressing a push button. It can also be a menu, a toolbar, a toolbar tool, or a container such as a panel or button group. For example, a uicontrol has a property called Callback. Uicontextmenu, uicontrol, uimenu ClickedCallback Control action.
I have seen code which gets real issues due to gcf in 2014b and later. It controls component behavior by performing some action in reponse to an event for that component. I don't like the timer object idea since I don't want to actively poll the variable. Note that imshow returns the handle of an image object, not the handle of an axes. What is the difference between these two callback type? The ButtonDownFcn callback for the child objects will be executed instead. Additionally, when I click on a axes and use the windowscrollWheelFcn, I can perform a callback on the axes I replot rand.
The other elements in the cell array are the additional input arguments you want to use, separated by commas. In addition to that, if possible, try to save every figure handle as a variable. SizeChangedFcn End user resizes a button group, figure, or panel whose Resize property is 'on'. Maybe I'm doing something wrong? WindowScrollWheelFcn End user turns the mouse wheel while the pointer is on the figure. The windowscrollWheelFcn works just fine all the way through, but for some reason the ButtonDownFcn for either axes doesn't work anymore.
I could then set an identical ButtonDownFcn on this new image, but I'm hoping for a better solution than this work around. But if I check the field ButtonDownFcn of AxesH its. However, if it's build upon the built-in , then there should be a selectionChangeCallback or selectionChangeFcn property depending on your Matlab version. In this case, the name of function is myfun, and its function declaration defines only one input argument, x. In other words, you assign a function handle to the WindowButtonDownFcn. WindowButtonDownFcn End user presses a mouse button while the pointer is in the figure window. For information about using class methods as callbacks, see.