Assign a callback function to be notified whenever the page requests
a context menu to be shown (usually the result of a user right-clicking
somewhere on the page). It is your responsiblity to display a menu for
the user to select an appropriate action.
@param webview The WebView instance
@param callback A function pointer to the callback.
Assign a callback function to be notified whenever the page requests a context menu to be shown (usually the result of a user right-clicking somewhere on the page). It is your responsiblity to display a menu for the user to select an appropriate action.
@param webview The WebView instance
@param callback A function pointer to the callback.