message display in web ui

hi all,

i am trying to populate messages in web ui using the code below:

CALL METHOD cl_bsp_wd_message_service=>get_instance
RECEIVING
rv_result = lr_msg.
lr_msg->add_message(
EXPORTING
iv_msg_type = 'E' " Messages, Message Type
iv_msg_id = 'ZAPD' " Messages, Message Class
iv_msg_number = '001' " Messages, Message Number
iv_msg_v1 = lv_string " Messages, Message Variable
* iv_msg_v2 = " Messages, Message Variable
* iv_msg_v3 = " Messages, Message Variable
* iv_msg_v4 = " Messages, Message Variable
iv_msg_level = '1' " Message Level
* iv_verification = " Interface for Error Handler
* iv_important_info = ABAP_FALSE " Flag: Important User Information
* iv_dyn_longtext =
).

pls find the below screen shot of se91.

pls find the screen shot of the web ui

can you pls let me know how do i get the complete message in web ui ..