ABAP SAPGUI 里使用 F4 value help 选择

这个简单的 report 执行后效果如下，弹出一个对话框，通过下拉菜单选择时间：

选定之后，传回到报表里，打印出来：

源代码：

report z.
data: help_info     type help_info,
      SELECT_VALUE  type HELP_INFO-FLDVALUE,
      DYNPSELECT    type DSELC occurs 0 with header line,
      DYNPVALUETAB  type DVAL  occurs 0 with header line.

initialization.

HELP_INFO-CALL  = 'V'.
HELP_INFO-OBJECT  = 'F'.
HELP_INFO-PROGRAM     = sy-repid.
HELP_INFO-DYNPRO  = sy-dynnr.
HELP_INFO-TABNAME     = 'BTCH3071'.
HELP_INFO-FIELDNAME  = 'FROM_TIME'.
HELP_INFO-FIELDTYPE  = 'TIME'.
HELP_INFO-FIELDLNG    = '08'.
HELP_INFO-SPRAS  = 'E'.
HELP_INFO-MENUFUNCT  = 'HC'.

start-of-selection .

CALL FUNCTION 'DD_SHLP_CALL_FROM_DYNP'
  EXPORTING
    help_infos         = help_info
 IMPORTING
   SELECT_VALUE       = SELECT_VALUE
  TABLES
    dynpselect         = dynpselect
    dynpvaluetab       = dynpvaluetab
          .

write:/ 'the selected value is:' , SELECT_VALUE.