How to get specific axes handle in GUI with more then one axes?

Say I have GUI_1 with several axes. Now I start GUI_2 changes some settings and the corresponding axes in GUI_1 should change corresponding to the changes in GUI_2. Problem is I can't get the right axes-handle to refresh the correct axes.

findobj(HandleToGUI_1, 'type', 'axes')

gives me all axes and...

findobj(HandleToGUI_1, 'type', 'axes', '-and', 'Tag', 'TagForMySpecificAxes')

doesn't work...

How can I get the handle for my specific axes?

[Jan]

"Doesn't work" is a weak description. Better mention any details.

Is the HandleVisibility of the axes enabled?

[Dennis]

you can assign a handle when you create the axes

handles.axes1=axes('Position',[0.86 0 0.15 0.15])

[SturmGhost]

@Jan

I will get an empty GraphicsPlaceholder as a handle.

HandleVisibility is on.

If I run my second example without the '-and' code inside GUI_1.m it works. Unfortunately, if I call my refresh function from GUI_2.m it doesn't finde the handle. To access my refresh function (which is located in GUI_1.m) from GUI_2.m I use

setappdata(gcf, 'fhUpdateFilterPreview', @UpdateFilterPreview);

in GUI_1.m at the GUI_OpeningFcn function and in GUI_2.m

fhUpdateFilterPreview = getappdata(hImageAnalyzer, 'fhUpdateFilterPreview');
[...]
feval(fhUpdateFilterPreview);

@Dennis

GUIDE will already assign a handle to the axes. Problem is, if I call my refresh function from GUI_2, I don't have this handle accessible.

Answer 1

[Jan]

If the figure was created by GUIDE:

handles_GUI1 = guidata(HandleToGUI_1);
handles_GUI1.TagForMySpecificAxes   % May be called specifically, perhaps 'axes_<TAG>' 

You can store the wanted object manually by guidata also, when you do not use GUIDE. Using an already stored handle is faster than searching dynamically. If there is a huge number of elements in the GUI (hundreds), the delay is noticable.