Quote Originally Posted by seguprasad View Post
It is working fine when i am disabling the zoomer ...
Didn't I ask explicitely for other navigation objects ?

Anyway, the default configuration of the zoomer uses the left button to zoom in and the right mouse button to zoom out. You have to find a different combination, that doesn't conflict with your left+right button idea. The spectrogram example shows how to change the buttons.

But note, that you will see often (always ?) a left or right mouse button click before you get the left+right click, simply because it's difficult to press both buttons synchronously.

Uwe