Executes a string of Javascript in the context of the current page
asynchronously with a result.
@param javascript The string of Javascript to execute.
@param frame_name The name of the frame to execute in;
pass an empty string to execute in the main frame.
@param timeout_ms The maximum amount of time (in milliseconds) to wait
for a result. Pass 0 to use no timeout. (If no result
is obtained, or the timeout is reached, this function
will return a jsvalue with type "null")
@return Returns an awe_jsvalue instance. You must call awe_jsvalue_destroy
on this instance when you're done using it.
Executes a string of Javascript in the context of the current page asynchronously with a result.
@param javascript The string of Javascript to execute.
@param frame_name The name of the frame to execute in; pass an empty string to execute in the main frame.
@param timeout_ms The maximum amount of time (in milliseconds) to wait for a result. Pass 0 to use no timeout. (If no result is obtained, or the timeout is reached, this function will return a jsvalue with type "null")
@return Returns an awe_jsvalue instance. You must call awe_jsvalue_destroy on this instance when you're done using it.