How can i change my pointer mouse by a image?

I have to do a program which create a music partiture, and i need select a note (by a gui interface) and introduce this note into a empty partiture. I'm looking the way that when you click on the note the mouse pointer change to this note (the image).... Somebody can help me?, please

Answer 1

[Alberto]

Yes but with this option i need declare the 16x16 matrix pixel by pixel, if i use a image the function crash.

[Walter Roberson]

imresize() to 16 x 16. rgb2bw() that. Add 1 so that the black are 1 and the white are 2.

[Alberto]

I tried with this code step by step: ------------------------------------------------------------------- X=imread('negra.jpg'); umbral=graythresh(X);

P=im2bw(X,umbral); P = imresize(P,[16,16]); [m n]=size(P)

set(gcf,'Pointer','custom','PointerShapeCData',P,... 'PointerShapeHotSpot',[9 9]) --------------------------------------------------------------------

And Matlab crash with this error:

??? Error using ==> set Value must be numeric

[Image Analyst]

Add comments to Walter's answer, not to "your" answer, which really should have been a comment to Walter, not an Answer of your own to your original question.

[Alberto]

Thank you Walter I did it, and it`s worked

Answer 2

[Walter Roberson]

Yes. See http://www.mathworks.com/help/matlab/creating_plots/specifying-the-figure-pointer.html#f5-25777

For advanced pointer behavior, see also http://www.mathworks.com/help/images/ref/iptsetpointerbehavior.html

[Adam Danz]

There's also a demo in this community highlight. See "part 3" within that link.

https://www.mathworks.com/matlabcentral/discussions/highlights/132556-new-in-r2020a-mouse-pointer-control-in-apps-uifigures