@brief Deliver a SetProperty request to set WM_CLASS property value.
WM_CLASS string is a concatenation of the instance and class name
strings respectively (including null character).
@param c The connection to the X server.
@param window Window X identifier.
@param class_len Length of WM_CLASS string.
@param class_name WM_CLASS string.
@return The request cookie.
@brief Deliver a SetProperty request to set WM_CLASS property value.
WM_CLASS string is a concatenation of the instance and class name strings respectively (including null character).
@param c The connection to the X server. @param window Window X identifier. @param class_len Length of WM_CLASS string. @param class_name WM_CLASS string. @return The request cookie.