How to add keyboard control on our tree.

hi,
any body can kindly tell me that how can we add keyboard control on out tree widget.
I am also anxious to know that when I compiled and loaded the PnlTreeView sample in Debug mode, keyboard control on this panel was also not working fine, it worked sometime and not on the other.
Can anybody help me for the above 2 questions.

There's no calendar control per-se, but you have an option - create an HTML image-map prompt - that should work....the only problem would be making it dynamic, but I'm sure you can create a big image map

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Hi,
use FM HR_ALV_HIERSEQ_LIST_DISPLAY
there are 2 internal table , one for header and one for detail
below is code for reference
REPORT zinsd_quot_cont.
TYPES : BEGIN OF ty_vbak,
vbeln TYPE vbeln_va,
vkorg TYPE vkorg,
vtweg TYPE vtweg,
spart TYPE spart,
vkbur TYPE vkbur,
vkgrp TYPE vkgrp,
angdt TYPE angdt_v,
bnddt TYPE bnddt,
kunnr TYPE kunnr,
kwmeng TYPE kwmeng,
meins TYPE meins,
kunwe TYPE kunnr,
name1 TYPE name1_gp ,
name2 TYPE name1_gp ,
sel(1),
expand(1),
salesdocument TYPE bapivbeln-vbeln,
message TYPE bapi_msg,
END OF ty_vbak.
DATA : w_vbak TYPE ty_vbak,
t_vbak TYPE TABLE OF ty_vbak.
DATA : w_update TYPE ty_vbak,
t_update TYPE TABLE OF ty_vbak.
TYPES : BEGIN OF ty_kna1,
kunnr TYPE kunnr,
name1 TYPE name1_gp ,
END OF ty_kna1.
DATA : w_kna1 TYPE ty_kna1,
t_kna1 TYPE TABLE OF ty_kna1.
TYPES : BEGIN OF ty_vbap,
vbeln TYPE vbeln_va,
posnr TYPE posnr_va,
matnr TYPE matnr,
matkl TYPE matkl,
werks TYPE werks_ext,
kwmeng TYPE kwmeng,
meins TYPE meins,
mvgr5 TYPE mvgr5,
maktx TYPE maktx,
END OF ty_vbap.
DATA : w_vbap TYPE ty_vbap,
t_vbap TYPE TABLE OF ty_vbap.
TYPES : BEGIN OF ty_makt,
matnr TYPE matnr,
maktx TYPE maktx,
END OF ty_makt.
DATA : w_makt TYPE ty_makt,
t_makt TYPE TABLE OF ty_makt.
TYPES : BEGIN OF ty_sum,
vbeln TYPE vbeln_va,
kwmeng TYPE kwmeng,
END OF ty_sum.
DATA : w_sum TYPE ty_sum,
t_sum TYPE TABLE OF ty_sum.
TYPES : BEGIN OF ty_vbpa,
vbeln TYPE vbeln,
posnr TYPE posnr,
parvw TYPE parvw,
kunnr TYPE kunnr,
END OF ty_vbpa.
DATA : w_vbpa TYPE ty_vbpa,
t_vbpa TYPE TABLE OF ty_vbpa.
TYPES : BEGIN OF ty_vbup,
vbeln TYPE vbeln,
posnr TYPE posnr ,
gbsta TYPE gbsta ,
END OF ty_vbup.
DATA : w_vbup TYPE ty_vbup,
t_vbup TYPE TABLE OF ty_vbup.
TYPE-POOLS slis.
DATA: t_fieldcatalog TYPE slis_t_fieldcat_alv,
w_fieldcatalog TYPE slis_fieldcat_alv,
w_layout TYPE slis_layout_alv,
gs_keyinfo TYPE slis_keyinfo_alv.
DATA: g_tabname_header TYPE slis_tabname,
g_tabname_item TYPE slis_tabname.
data definition
Batchinputdata of single transaction
DATA: bdcdata LIKE bdcdata OCCURS 0 WITH HEADER LINE.
messages of call transaction
DATA: messtab LIKE bdcmsgcoll OCCURS 0 WITH HEADER LINE.
DATA : g_lines TYPE i.
*Selection Screen
TABLES : vbak,vbap.
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text-000.
SELECT-OPTIONS s_vkorg FOR vbak-vkorg. " Sales Org
SELECT-OPTIONS s_vtweg FOR vbak-vtweg. " Dist Channel
SELECT-OPTIONS s_spart FOR vbak-spart. " Division
SELECT-OPTIONS s_vkbur FOR vbak-vkbur. " Sales Off
SELECT-OPTIONS s_vkgrp FOR vbak-vkgrp. " Sales Grp
SELECT-OPTIONS s_matkl FOR vbap-matkl. " Mat Grp
SELECT-OPTIONS s_werks FOR vbap-werks. " Plant
SELECT-OPTIONS s_period FOR vbak-angdt. " Sales Off
SELECTION-SCREEN END OF BLOCK b1.
START-OF-SELECTION.
PERFORM f_getdata.
PERFORM f_initdata.
END-OF-SELECTION.
PERFORM f_createalv.
PERFORM f_dispalv.
*& Form f_getdata
text
--> p1 text
<-- p2 text
FORM f_getdata .
*Sales Header
SELECT
vbeln
vkorg
vtweg
spart
vkbur
vkgrp
angdt
bnddt
kunnr
INTO TABLE t_vbak
FROM vbak
WHERE
vkorg IN s_vkorg " Sales Org
AND vtweg IN s_vtweg " Dist Channel
AND spart IN s_spart " Division
AND vkbur IN s_vkbur " Sales Off
AND vkgrp IN s_vkgrp " Sales Grp
AND angdt IN s_period
AND bnddt IN s_period
AND auart = 'ZQMO'
AND vbtyp = 'B'.
*CUST NAME
SELECT
kunnr
name1
INTO TABLE t_kna1
FROM kna1
FOR ALL ENTRIES IN t_vbak
WHERE
kunnr = t_vbak-kunnr
*Sales Item
SELECT
vbeln
posnr
matnr
matkl
werks
kwmeng
meins
mvgr5
INTO TABLE t_vbap
FROM vbap
FOR ALL ENTRIES IN t_vbak
WHERE
vbeln = t_vbak-vbeln
AND matkl IN s_matkl " Mat Grp
AND werks IN s_werks " Plant
*Partners
SELECT
vbeln
posnr
parvw
kunnr
INTO TABLE t_vbpa
FROM vbpa
FOR ALL ENTRIES IN t_vbak
WHERE
vbeln = t_vbak-vbeln.
IF t_vbpa[] IS NOT INITIAL.
SELECT
kunnr
name1
APPENDING TABLE t_kna1
FROM kna1
FOR ALL ENTRIES IN t_vbpa
WHERE
kunnr = t_vbpa-kunnr
ENDIF.
*Status - Sales Doc
SELECT
vbeln
posnr
gbsta
INTO TABLE t_vbup
FROM vbup
FOR ALL ENTRIES IN t_vbap
WHERE
vbeln = t_vbap-vbeln
AND posnr = t_vbap-posnr
AND gbsta NE 'C'.
SELECT
matnr
maktx
INTO TABLE t_makt
FROM makt
FOR ALL ENTRIES IN t_vbap
WHERE
matnr = t_vbap-matnr
AND spras = 'E'.
ENDFORM. " f_getdata
*& Form f_initdata
text
--> p1 text
<-- p2 text
FORM f_initdata .
SORT t_vbap BY vbeln DESCENDING.
*delete all closed stat items
LOOP AT t_vbap INTO w_vbap.
READ TABLE t_vbup INTO w_vbup
WITH KEY
vbeln = w_vbap-vbeln
posnr = w_vbap-posnr.
IF sy-subrc <> 0.
DELETE t_vbap.
CONTINUE.
ELSE.
READ TABLE t_makt INTO w_makt
WITH
KEY matnr = w_vbap-matnr.
IF sy-subrc = 0.
w_vbap-maktx = w_makt-maktx.
MODIFY t_vbap FROM w_vbap.
ENDIF.
ENDIF.
ENDLOOP.
*find the total quantity
LOOP AT t_vbap INTO w_vbap.
w_sum-vbeln = w_vbap-vbeln.
w_sum-kwmeng = w_vbap-kwmeng.
COLLECT w_sum INTO t_sum.
CLEAR w_sum.
ENDLOOP.
*populate header
LOOP AT t_vbak INTO w_vbak.
Quantity - Total
READ TABLE t_sum INTO w_sum
WITH KEY
vbeln = w_vbak-vbeln.
IF sy-subrc = 0.
w_vbak-kwmeng = w_sum-kwmeng.
ELSE.
CLEAR w_vbak-kwmeng.
ENDIF.
UoM
READ TABLE t_vbap INTO w_vbap
WITH KEY
vbeln = w_vbak-vbeln.
IF sy-subrc = 0.
w_vbak-meins = w_vbap-meins.
ELSE.
CLEAR w_vbak-meins.
ENDIF.
Partner
READ TABLE t_vbpa INTO w_vbpa
WITH KEY
vbeln = w_vbak-vbeln
parvw = 'WE'.
IF sy-subrc = 0.
w_vbak-kunwe = w_vbpa-kunnr.
ELSE.
CLEAR w_vbak-kunwe.
ENDIF.
SHIP TO PARTY NAME
READ TABLE t_kna1 INTO w_kna1
WITH KEY
kunnr = w_vbak-kunwe.
IF sy-subrc = 0.
w_vbak-name2 = w_kna1-name1.
ENDIF.
CUST NAM - SOLD TO PARTY
READ TABLE t_kna1 INTO w_kna1
WITH KEY
kunnr = w_vbak-kunnr.
IF sy-subrc = 0.
w_vbak-name1 = w_kna1-name1.
ENDIF.
MODIFY t_vbak FROM w_vbak.
ENDLOOP.
DELETE t_vbak WHERE kwmeng IS INITIAL.
SORT t_vbak BY vbeln DESCENDING.
SORT t_vbap BY vbeln DESCENDING posnr ASCENDING.
ENDFORM. " f_initdata
*& Form f_createalv
Create Field Cat.
--> p1 text
<-- p2 text
FORM f_createalv .
g_tabname_header = 't_vbak'.
g_tabname_item = 't_vbap' .
CLEAR gs_keyinfo.
gs_keyinfo-header01 = 'VBELN'.
gs_keyinfo-item01 = 'VBELN'.
*VBAK
w_fieldcatalog-fieldname = 'VBELN'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Sales Document'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'VKORG'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Sales Org'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'VTWEG'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Dist Channel'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'SPART'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Division'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'VKBUR'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Sales Office'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'VKGRP'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Sales GRP'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'KUNNR'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Sold to Party'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'NAME1'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-outputlen = 35.
w_fieldcatalog-seltext_l = 'Sold to Party Code - Name'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'KUNWE'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Ship to Party'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'NAME2'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Ship Party Code - Name'.
w_fieldcatalog-outputlen = 35.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'KWMENG'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Quantity'.
w_fieldcatalog-outputlen = 25.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MEINS'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'UoM'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'SALESDOCUMENT'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Document'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MESSAGE'.
w_fieldcatalog-tabname = 't_vbak'.
w_fieldcatalog-seltext_l = 'Log'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
*VBAP
w_fieldcatalog-fieldname = 'POSNR'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'POS'.
w_fieldcatalog-outputlen = 6.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MATNR'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'Material'.
w_fieldcatalog-outputlen = 18.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MAKTX'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'Material Desc'.
w_fieldcatalog-outputlen = 40.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MATKL'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'Material Grp'.
w_fieldcatalog-outputlen = 9.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MVGR5'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'MCNO'.
w_fieldcatalog-outputlen = 4.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'WERKS'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'Plant'.
w_fieldcatalog-outputlen = 91.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'KWMENG'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'Quantity'.
w_fieldcatalog-outputlen = 25.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
w_fieldcatalog-fieldname = 'MEINS'.
w_fieldcatalog-tabname = 't_vbap'.
w_fieldcatalog-seltext_l = 'UoM'.
APPEND w_fieldcatalog TO t_fieldcatalog.
CLEAR: w_fieldcatalog.
LAYOUT
w_layout-colwidth_optimize = 'X'.
w_layout-zebra = 'X'.
w_layout-expand_fieldname = 'EXPAND'.
w_layout-box_fieldname = 'SEL'.
w_layout-box_tabname = 't_vbak'.
ENDFORM. " f_createalv
*& Form f_dispalv
Call ALV
--> p1 text
<-- p2 text
FORM f_dispalv .
CALL FUNCTION 'REUSE_ALV_HIERSEQ_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_callback_pf_status_set = 'SET_PF_STATUS'
i_callback_user_command = 'USER_COMMAND'
is_layout = w_layout
it_fieldcat = t_fieldcatalog
IT_EXCLUDING =
IT_SPECIAL_GROUPS =
IT_SORT =
IT_FILTER =
IS_SEL_HIDE =
I_SCREEN_START_COLUMN = 0
I_SCREEN_START_LINE = 0
I_SCREEN_END_COLUMN = 0
I_SCREEN_END_LINE = 0
I_DEFAULT = 'X'
I_SAVE = ' '
IS_VARIANT =
IT_EVENTS =
IT_EVENT_EXIT =
i_tabname_header = g_tabname_header
i_tabname_item = g_tabname_item
is_keyinfo = gs_keyinfo
TABLES
t_outtab_header = t_vbak
t_outtab_item = t_vbap
EXCEPTIONS
program_error = 1
OTHERS = 2
IF sy-subrc <> 0.
ENDIF.
ENDFORM. " f_dispalv
*& Form set_pf_status
PF stat
-->RT_EXTAB text
FORM set_pf_status USING rt_extab TYPE slis_t_extab.
SET PF-STATUS 'ZINSD_QUOT_CONT_ST'.
ENDFORM. "set_pf_status
*& Form user_command
Process List UCOMM
-->R_UCOMM text
-->RS_SELFIELD text
FORM user_command USING r_ucomm LIKE sy-ucomm
rs_selfield TYPE slis_selfield.
REFRESH t_update.
IF r_ucomm = 'EXIT'.
LEAVE PROGRAM.
ENDIF.
IF r_ucomm = 'EXECUTE'.
LOOP AT t_vbak INTO w_update
WHERE
sel = 'X'
AND salesdocument = ' '.
APPEND w_update TO t_update.
ENDLOOP.
IF t_update[] IS NOT INITIAL.
LOOP AT t_update INTO w_update.
PERFORM f_bapi_contract_createfromdata USING w_update.
PERFORM f_bdc_contract_from_quotation.
MODIFY t_update FROM w_update.
ENDLOOP.
ELSE.
ENDIF.
PERFORM f_dispalv.
ENDIF.
IF r_ucomm = '&IC1'.
IF rs_selfield-sel_tab_field = 't_vbak-VBELN'.
SET PARAMETER ID 'AGN' FIELD rs_selfield-value.
CALL TRANSACTION 'VA23' AND SKIP FIRST SCREEN.
ENDIF.
IF rs_selfield-sel_tab_field = 't_vbak-SALESDOCUMENT' AND
rs_selfield-value NE ' '.
SET PARAMETER ID 'KTN' FIELD rs_selfield-value.
CALL TRANSACTION 'VA43' AND SKIP FIRST SCREEN.
ENDIF.
ENDIF.
ENDFORM. "user_command
*& Form F_BAPI_CONTRACT_CREATEFROMDATA
BAPI CALL
-->P_W_UPDATE text
FORM f_bapi_contract_createfromdata USING p_w_update STRUCTURE w_update .
DATA : w_contract_header_in TYPE bapisdhd1 ,
w_contract_header_inx TYPE bapisdhd1x ,
t_contract_items_in TYPE TABLE OF bapisditm WITH HEADER LINE,
t_contract_items_inx TYPE TABLE OF bapisditmx WITH HEADER LINE,
t_contract_partners TYPE TABLE OF bapiparnr WITH HEADER LINE,
t_return TYPE TABLE OF bapiret2 WITH HEADER LINE.
CLEAR : w_contract_header_in,
w_contract_header_inx.
REFRESH : t_contract_items_in,
t_contract_items_inx,
t_contract_partners,
t_return.
w_contract_header_in-doc_type = 'ZCNT'.
w_contract_header_in-sales_org = p_w_update-vkorg.
w_contract_header_in-distr_chan = p_w_update-vtweg.
w_contract_header_in-division = p_w_update-spart.
w_contract_header_in-ct_valid_f = p_w_update-angdt.
w_contract_header_in-ct_valid_t = p_w_update-bnddt.
w_contract_header_inx-doc_type = 'X'.
w_contract_header_inx-sales_org = 'X'.
w_contract_header_inx-distr_chan = 'X'.
w_contract_header_inx-division = 'X'.
w_contract_header_inx-ct_valid_f = 'X'.
w_contract_header_inx-ct_valid_t = 'X'.
LOOP AT t_vbap INTO w_vbap
WHERE
vbeln = p_w_update-vbeln.
t_contract_items_in-material = w_vbap-matnr.
t_contract_items_in-plant = w_vbap-werks.
t_contract_items_in-target_qty = w_vbap-kwmeng.
t_contract_items_in-target_qu = w_vbap-meins.
t_contract_items_in-ref_doc = w_vbap-vbeln.
t_contract_items_in-ref_doc_it = w_vbap-posnr.
t_contract_items_in-ref_doc_ca = 'B'.
t_contract_items_in-prc_group5 = w_vbap-mvgr5.
t_contract_items_inx-material = 'X'.
t_contract_items_inx-plant = 'X'.
t_contract_items_inx-target_qty = 'X'.
t_contract_items_inx-target_qu = 'X'.
t_contract_items_inx-ref_doc = 'X'.
t_contract_items_inx-ref_doc_it = 'X'.
t_contract_items_inx-ref_doc_ca = 'X'.
t_contract_items_inx-prc_group5 = 'X'.
APPEND t_contract_items_in.
APPEND t_contract_items_inx.
ENDLOOP.
LOOP AT t_vbpa INTO w_vbpa
WHERE
vbeln = p_w_update-vbeln.
AND posnr = w_vbap-posnr.
t_contract_partners-partn_role = w_vbpa-parvw.
t_contract_partners-partn_numb = w_vbpa-kunnr.
t_contract_partners-itm_number = w_vbpa-posnr.
APPEND t_contract_partners.
ENDLOOP.
CALL FUNCTION 'BAPI_CONTRACT_CREATEFROMDATA'
EXPORTING
SALESDOCUMENTIN =
contract_header_in = w_contract_header_in
contract_header_inx = w_contract_header_inx
SENDER =
BINARY_RELATIONSHIPTYPE = ' '
INT_NUMBER_ASSIGNMENT = ' '
BEHAVE_WHEN_ERROR = ' '
LOGIC_SWITCH =
TESTRUN =
CONVERT = ' '
IMPORTING
salesdocument = p_w_update-salesdocument
TABLES
return = t_return
contract_items_in = t_contract_items_in
contract_items_inx = t_contract_items_inx
contract_partners = t_contract_partners
CONTRACT_CONDITIONS_IN =
CONTRACT_CONDITIONS_INX =
CONTRACT_CFGS_REF =
CONTRACT_CFGS_INST =
CONTRACT_CFGS_PART_OF =
CONTRACT_CFGS_VALUE =
CONTRACT_CFGS_BLOB =
CONTRACT_CFGS_VK =
CONTRACT_CFGS_REFINST =
CONTRACT_DATA_IN =
CONTRACT_DATA_INX =
CONTRACT_TEXT =
CONTRACT_KEYS =
EXTENSIONIN =
PARTNERADDRESSES =
IF p_w_update-salesdocument NE ' ' .
p_w_update-message = 'SUCCESS'.
ELSE.
READ TABLE t_return INDEX 1.
p_w_update-message = t_return-message.
ENDIF.
READ TABLE t_vbak INTO w_vbak
WITH KEY
vbeln = p_w_update-vbeln.
IF sy-subrc = 0.
MODIFY t_vbak INDEX sy-tabix FROM p_w_update .
ENDIF.
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
EXPORTING
wait = 'X'.
ENDFORM. " F_BAPI_CONTRACT_CREATEFROMDATA
*& Form f_bdc_contract_from_Quotation
BAPI CALL
-->P_W_UPDATE text
FORM f_bdc_contract_from_quotation.
DATA : l_date TYPE char10.
REFRESH : messtab, bdcdata.
CLEAR : messtab, bdcdata.
PERFORM bdc_dynpro USING 'SAPMV45A' '0101'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=COPY'.
PERFORM bdc_field USING 'VBAK-AUART'
'ZCNT'.
PERFORM bdc_dynpro USING 'SAPLV45C' '0100'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=RANG'.
PERFORM bdc_dynpro USING 'SAPLV45C' '0100'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=UEBR'.
PERFORM bdc_field USING 'LV45C-VBELN'
w_update-vbeln.
PERFORM bdc_dynpro USING 'SAPMV45A' '4001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=SICH'.
IF NOT w_update-angdt IS INITIAL.
CALL FUNCTION 'CONVERT_DATE_TO_EXTERNAL'
EXPORTING
date_internal = w_update-angdt
IMPORTING
date_external = l_date
EXCEPTIONS
date_internal_is_invalid = 1
OTHERS = 2.
PERFORM bdc_field USING 'VBAK-GUEBG'
l_date.
ENDIF.
IF NOT w_update-bnddt IS INITIAL.
CALL FUNCTION 'CONVERT_DATE_TO_EXTERNAL'
EXPORTING
date_internal = w_update-bnddt
IMPORTING
date_external = l_date
EXCEPTIONS
date_internal_is_invalid = 1
OTHERS = 2.
PERFORM bdc_field USING 'VBAK-GUEEN'
l_date.
ENDIF.
CALL TRANSACTION 'VA41' USING bdcdata
MODE 'E'
UPDATE 'S'
MESSAGES INTO messtab.
break abap.
READ TABLE messtab WITH KEY msgid = 'V1'
msgnr = '311'.
IF sy-subrc EQ 0.
w_update-message = 'SUCCESS'.
w_update-salesdocument = messtab-msgv2.
ELSE.
READ TABLE messtab WITH KEY msgtyp = 'E'.
IF sy-subrc EQ 0.
DATA : l_info TYPE einfo.
CLEAR l_info.
l_info-msgid = messtab-msgid.
l_info-msgty = messtab-msgtyp.
l_info-msgno = messtab-msgnr.
l_info-msgv1 = messtab-msgv1.
l_info-msgv2 = messtab-msgv2.
l_info-msgv3 = messtab-msgv3.
l_info-msgv4 = messtab-msgv4.
CALL FUNCTION 'MESSAGE_GET_TEXT'
EXPORTING
ieinfo = l_info
ilangu = sy-langu
IMPORTING
etext = w_update-message
EXCEPTIONS
no_t100_found = 1
OTHERS = 2.
ENDIF.
ENDIF.
READ TABLE t_vbak INTO w_vbak WITH KEY vbeln = w_update-vbeln.
IF sy-subrc = 0.
MODIFY t_vbak INDEX sy-tabix FROM w_update transporting message
salesdocument.
ENDIF.
ENDFORM. " f_bdc_contract_from_Quotation
Start new screen *
FORM bdc_dynpro USING program dynpro.
CLEAR bdcdata.
bdcdata-program = program.
bdcdata-dynpro = dynpro.
bdcdata-dynbegin = 'X'.
APPEND bdcdata.
ENDFORM. "bdc_dynpro
Insert field *
FORM bdc_field USING fnam fval.
CLEAR bdcdata.
bdcdata-fnam = fnam.
bdcdata-fval = fval.
APPEND bdcdata.
ENDFORM. "bdc_field
Also, check the following:
http://www.sapdevelopment.co.uk/reporting/alv/alvtree.htm
You can get help as programs also.
hope this helps.
cheers,
Hema.

[SOLVED] How to add keyboard shortcuts in XFCE?

I'm giving XFCE a try lately after all of the changes I'm seeing, I'm trying to add a new shortcut to ease some tasks but I don't have a clue on how to do it.
I go to Settings -> Keyboard and there to "Application shortcuts". Then I select to add a new one and point to the script I want to run, but I don't have a clue on how to select the shortcut. I've tried pressing the keys I want to bind, but no way.
This is what I'm seeing:
How to choose the actual shortcut?
Last edited by KaoDome (2012-05-11 13:16:03)

It is the next screen Pick the command, click OK. It then throws up a box telling you to press the key combination. It will show as you push meta, shift and control modifiers. When you hit a character that generates a keystroke, it saves it, along with the modifiers.

How to add vertical scrollbar to a tree region

Hi,
I have a page containing two regions. The first is a tree region displayed on the left hand side of the page. The second is form region displayed to the right of the tree, showing details relating to the selected node from the tree.
How can I add a vertical scrollbar to the tree, so that I can I browse all nodes in the tree without affecting the position of the form? Currently, if my tree extends beyond the height of the page I have to use the page vertical scrollbar to view the bottom of the tree. This obviously means that the form is no longer in view.
Thanks
Andrew.

Hi Andrew,
You can't add a scrollbar directly to the region's contents, but you can wrap the contents within a DIV tag.
In the Region Header add in:
<DIV style="height:500px; overflow:auto">
In the Region Footer add in:
</DIV>
Obviously, change the height value to suit your needs.
Regards
Andy

How to add access control to a WebService in Weblogic

Hello experts,
I developed a Web Service and I deployed it on Weblogic: it reads a SOAP request and, according to the input, it performs some actions.
Now we would need to implement an access control on it, we read some information in the documentation we find on google, but none of these was exhaustive: did anyone of you implemented already an access control policy?
And how did you do?
Thank you

Hello Arunkumar,
my JDev is 11.1.1.5.0.
I checked the documentation, but it's not clear for me in which of those scenarios we are: we have an Oracle Service Bus that needs to contact an application, but we don't want to grant a direct access to it.
So the bus is calling the web service that it's triggering the events on the application.
Everything works fine, but we need now to put at least an access control method, in order to avoid that a simple call from SoapUI may triggers the operations on our Web Service.

How 2 implement keyboard controls for 2 players simultaneusly in java game?

I ' m making this fighting game . 2 players can fight at a time. I got my 2 characters on the screen at the same time. The 1st player should be controlled with Arrow keys and number key pad.
The 2nd player should be controlled with Z for left C for RIGHT , S for UP( jump), X for duck. and then use BNM, GHJ and TYU to do the same as the number keys for the first player
When i tried this , it worked if i performed moves from player 1 , then trie d player 2,, but i noticed when i pushed buttons at the same time ( i pushed one key from player 1 's side of the keyboard and one key from player 2's side) it did't work because no move was executed. And i know it's because i'm pushing 2 keys at once . so one character sees that i'm pushing 2 keys, but he doesn't know what to do cause i didn't make a case of pushing 2 keys that would move him and another character.
So i have this in keyDown()
//THIS IS FOR 1 PLAYER MODE : you against enemy
switch( key){
case Even.UP:
if( player1 is michaelCharacter ){
michaelCharacter.jump()
else if( player1 is johnsonCharacter){
johnsonCharacter.jump();
break;
etcc... all player 1 keys in this way, acconrding to which character he chose to play with
//then i have this swich that supposedly is used if there is a second player
if( gameType = 2Player mode ){
switch( key ){
case 's':
if( player2 = michaelChacter)
michaelCharacter.jump():
if( player2 = johnsonCharacter)
johnsoncharacter.jump();
break;
//etc
So that works if each character does his move But there is no overlap of moves, that is you don't have player1 and player2 executing a move at the same time.
well, how would i do it? Is it possible ?

Hi,
It's bit tricky to do check keyboard simultaneously...
you need to check KeyPressed() and KeyReleased(), and do a "log key-event history" to find out what keys are still in pressed.
alternatively,
If you don't mind, you can use Fly game library...
initialisation part:
// initialisation & make game screen resolution to 800x600
Game g = new Game();
g.init(800,600,false);
...and then on your key trapping logic, just do a standard logic. I'm surely it will works:
if (g.getKeyboard().isKeyPressed(KeyEvent.VK_UP)) {
if (g.getKeyboard().isKeyPressed(KeyEvent.VK_DOWN)) {
}the library can be downloaded here:
[Fly Game Engine|http://fly.engine.googlepages.com]
Just follow the tutorial / download example for more info....
good luck

How to add keyboard interaction?

I got 16 different buttons in this application, each button playing different kind of sound. Currently i only able to use mouse click to start playing sound, and click again to stop, but now i wish to add shortcut key to access those track buttons, like pressing "q" for track 1, "w" for track 2. Pressing "q" for the first time will start the sound and animation, press again will stop the sound and animation. Currently I've implemented this code, there are no errors but it won't work somehow, what is the problem?
private var _ambientTracks:Array = [ambient1, ambient2, ambient3, ambient4];
private var _effectTracks:Array = [effect1, effect2, effect3, effect4];
private var _melodyTracks:Array = [melody1, melody2, melody3, melody4];
private var _beatTracks:Array = [beat1, beat2, beat3, beat4];
//handle click on track invoke start / stop functions
private function onTrackClicked(event:MouseEvent):void {
    var track:Sprite = event.currentTarget as Sprite;
    var trackName:String = track.name;
    if (trackName in _playingTracks) {
        stopTrack(track);
        delete _playingTracks[trackName];
    } else {
        startTrack(track);
        _playingTracks[trackName] = trackName;
//starts track animation and dispatch event for TrackMixer
private function startTrack(track:Sprite):void {
    Actuate.tween(track, 0.6, {alpha: 0.3}).reflect().repeat();
    dispatchEvent(new ObjectEvent(START_TRACK, track.name, true));
//stop track animation and dispatch event for TrackMixer
private function stopTrack(track:Sprite):void {
    Actuate.stop(track, "alpha");
    track.alpha = 1;
    dispatchEvent(new ObjectEvent(STOP_TRACK, track.name, true));
//trigger keyboard shortcut
   public function setup(stage:Stage):void {
        stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
    private var bool:Boolean = false;
    private function keyDown(event:KeyboardEvent):void {
        var track1:Sprite = Sprite(String(ambient1));
        if (event.keyCode == 81) {
            if (bool == false) {
                startTrack(Sprite(track1));
                _playingTracks[track1];
                bool = true;
            } else {
                if (bool == true) {
                    stopTrack(Sprite(track1));
                    delete _playingTracks[track1];
                    bool = false;

Actually i just want to addEventListener to the keyDown and define the keyDown function, even i use trace it also doesn't show up anything, that mean the keyCode == 81 is actually not working, do you have any idea or other way to make sure the keyCode is working?

How to add keyboard layout and define shortcut to switch layouts

Hello there people of Arch!
How can i add greek layout to my laptop and how can i set "alt+shift" as the shortcut to switch between layouts?
I tried to search but i couldn't find something useful!

Inxsible wrote:
sepuku wrote:
Inxsible wrote:What I gave you there was the guide itself.
What you gave me there is something generic not a guide(telling do "this" and "that" without telling how "this" and "that" is actually done is not a guide).Since i ask you how i'm supposed to do something am asking for specific info.
I'm using gnome.Is there a way to do it using the graphical environment?I don't have time this days to learn writing scripts cause i really need the greek layout for my studies and there's little time.
Thank you again for your reply!
Aah !!
Why didn't you say you wanted everything handed out to you on a platter !!!
Aaaah why didn't you say you are full of complexes?Thank you for your guide!That really helped me!I just asked if there's is guide in the forum 'cause i searched and couldn't find any info.And no what you gave me is not a guide.Could you just answer this without pretending the smart?Or this is just to difficult?Well anyway no hard feelings I don't care.
Am not going to reply to anything else you say cause you are ironic!I'll just wait if there is a more polite answer!
Peace to your complexes.

How do we regain control over our Time Machine drive revisited

+I posted this question as two posts over in the+ *Intel-based iMac* +forum but I think I may have put it in the wrong place. Please forgive me if you've already read this over there. If someone tells me how to delete a post I will or perhaps a Moderator can/will do it for me.+
+O M Oz+
Recently our 2.66 Intel Core 2 Duo started into a cycle of rebooting itself during the startup sequence. Eventually we decided to Restore the disk from the Time Machine Backup which is kept on an external 1TB La Cie drive.
After the Restore was complete; Time Machine attempted to do a backup run but we got an error message saying the drive could not be accessed to write the backup. Only the very last backup could be seen from the Star Wars screen. The icon had changed to the generic usb drive icon with a padlock.
I attempted a Full Reset of Time Machine by deleting the Preferences as described in the Troubleshooting thread. Since then we have not been able to access the Time Machine drive at all with either Time Machine or Finder.
A check of Sharing and Permissions shows that all users are listed having custom access which seems to mean you cannot read or write the drive. Disk Utility reports the drive as seeming to be okay when run in either Verify or Repair modes.
I have also attempted to run the sudo command from Terminal with no success. I'm running out of ideas. I don't want to do a low level reformat of this drive yet because it IS a backup drive and I'm not clear on the status of the restored drive.
*Next Day after sleeping on it, I posted...*
I've been thinking it over carefully and think I might have done the damage myself.
Before things went pear shaped I needed to back up the 80GB Hard Drive for a laptop but was just a little short of space on the 1TB drive. In Finder I went into the backup.backup folder and deleted the oldest backup under Finder.
From what I NOW know of the data structures of Time Machine I suspect this would have also removed the backups of whatever it is that logs the various permissions. Am I right?
If I am right can I recover from this and still save the the older backups?
Old Mac Oz

I half expected you would be the first to reply, Pondini
Pondini wrote:
Old Mac Oz wrote:
. . . The icon had changed to the generic usb drive icon with a padlock . . .
. . . *we are not able to access* the Time Machine drive at all *with either Time Machine or Finder*. > >. . .From what I NOW know of the data structures of Time Machine I suspect this would have also removed the backups of whatever it is that logs the various permissions. Am I right?
Not exactly, but yes, that can damage your backups.
Try to repair them, per #A5 in the Troubleshooting Tip. If that succeeds, your backups are probably ok. If not, It's possible that +Disk Warrior+ can. It's expensive (about $100), and probably a good investment for the future, but there's no guarantee.
I have already tried that but Disk Utility reports that there is nothing wrong with the disk; clearly that is wrong. I cannot reset the permissions to let me (as the Administrator) even read the disk
If that succeeds, and the 80 GB backup from another Mac is still there, you can delete it via Time Machine. See #12 in the Frequently Asked Questions *User Tip,* also at the top of this forum.
The 80GB backup was a simple Finder copy from the extracted Hard Disk onto my Time Machine disk, just simply regaining Finder access will allow me to rescue that
Also, everything you restored to your internal HD is considered as new, so it must be backed-up again. That will, of course, take a lot of space. It's possible that Time Machine deleted a large number of your old backups to make room. If it didn't, because it couldn't do the backup, it will when it can.
I understand that is what should happen.
So . . . try the repair. If that works, see if the old backups are still there, and also see how much space is available on your TM drive. If there's not enough room for a new full backup of your internal HD, plus 20% for workspace, TM will have to delete some old backups. If the disk isn't well over twice the size of the data it's backing-up, your best bet may be to erase the drive and let Time Machine start fresh.
I am coming to that conclusion. The drive is plenty big enough, it's a Terabyte backing up a 300GB disk. Activity Monitor and Finder using +Get Info+ both tell me the drive has 931.39GB available with about 907GB used, we just cannot access any of the data this usage represents due to the locked permissions.
Since I last posted I have also tried resetting PRAM and running sudo from Terminal as per #C5 in the Troubleshooting Tip to reset the permissions to no avail.
The Restore has not been a success so I am probably going to have to wipe the whole computer and rebuild the system, something I am understandably unwilling to do.
I asked here because the problem seems to be related to a recent Time Machine run and the drive I used. Am I asking my question in the correct forum?
Thanks for your input so far.
Old Man Oz

How to add 3rd child in simple tree.

Dear All
I have been able to add root, child1 and child2 using class CL_GUI_SIMPLE_TREE.
But when i try to add the child3, it gives an error 'Invalid access to database interface'. Please do let me know if there is any constraint in using CL_GUI_SIMPLE_TREE.

Dear Walter
Please find below the code.
SELECT * FROM SFLIGHT INTO TABLE IT_SFLIGHT.
IF CUST_CONTAINER IS INITIAL.
CREATE OBJECT CUST_CONTAINER EXPORTING CONTAINER_NAME = 'CCPAR'.
CREATE OBJECT EASY_SPLITTER EXPORTING PARENT = CUST_CONTAINER
                                 ORIENTATION = 1.
CONTAINER1 = EASY_SPLITTER->TOP_LEFT_CONTAINER.
CONTAINER2 = EASY_SPLITTER->BOTTOM_RIGHT_CONTAINER.
CREATE OBJECT ALV EXPORTING I_PARENT = CONTAINER2.
CREATE OBJECT TREE EXPORTING PARENT = CONTAINER1
                NODE_SELECTION_MODE = CL_GUI_SIMPLE_TREE=>NODE_SEL_MODE_SINGLE.
EVENT-EVENTID = CL_GUI_SIMPLE_TREE=>EVENTID_NODE_DOUBLE_CLICK.
EVENT-APPL_EVENT = 'X'. " process PAI if event occurs
APPEND EVENT TO EVENTS.
CALL METHOD TREE->SET_REGISTERED_EVENTS EXPORTING EVENTS = EVENTS.
IF APPLICATION IS INITIAL.
CREATE OBJECT APPLICATION.
SET HANDLER APPLICATION->HANDLE_DOUBLE_CLICK FOR TREE.
ENDIF.
PERFORM BUILD_TABLE USING NODE_TABLE.
CALL METHOD TREE->ADD_NODES
    EXPORTING
      TABLE_STRUCTURE_NAME = 'MTREESNODE'
      NODE_TABLE           = NODE_TABLE
    EXCEPTIONS
      FAILED                         = 1
      ERROR_IN_NODE_TABLE            = 2
      DP_ERROR                       = 3
      TABLE_STRUCTURE_NAME_NOT_FOUND = 4
      OTHERS                         = 5.
IF SY-SUBRC <> 0.
   MESSAGE A000.
ENDIF.
ENDIF.
FORM BUILD_TABLE USING P_NODE_TABLE TYPE NODE_TABLE_TYPE.
DATA: L_CARRTEXT TYPE TM_NODETXT,
      L_CONNTEXT TYPE TM_NODETXT,
      L_FLTEXT TYPE TM_NODETXT.
DATA : NODE TYPE MTREESNODE.
SORT IT_SFLIGHT BY CARRID CONNID FLDATE.
LOOP AT IT_SFLIGHT INTO WA_SFLIGHT.
AT FIRST.
NODE-NODE_KEY = 'Root'.   "#EC NOTEXT
                            " Key of the node
CLEAR NODE-RELATKEY.      " Special case: A root node has no parent
CLEAR NODE-RELATSHIP.     " node.
NODE-HIDDEN = ' '.        " The node is visible,
NODE-DISABLED = ' '.      " selectable,
NODE-ISFOLDER = 'X'.      " a folder.
CLEAR NODE-N_IMAGE.       " Folder-/ Leaf-Symbol in state "closed":
                            " use default.
CLEAR NODE-EXP_IMAGE.     " Folder-/ Leaf-Symbol in state "open":
                            " use default
CLEAR NODE-EXPANDER.      " see below.
NODE-TEXT = 'CARRID'.
APPEND NODE TO NODE_TABLE.
ENDAT.
AT NEW CARRID.
Node with key 'Child1'
NODE-NODE_KEY = WA_SFLIGHT-CARRID. "#EC NOTEXT
                            " Key of the node
" Node is inserted as child of the node with key 'Root'.
NODE-RELATKEY = 'Root'.
NODE-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD.
NODE-HIDDEN = ' '.
NODE-DISABLED = ' '.
NODE-ISFOLDER = 'X'.
CLEAR NODE-N_IMAGE.
CLEAR NODE-EXP_IMAGE.
NODE-EXPANDER = ' '. " The node is marked with a '+', although
                       " it has no children. When the user clicks on the
                       " + to open the node, the event
                       " expand_no_children is fired. The programmer can
                       " add the children of the
                       " node within the event handler of the
                       " expand_no_children event
                       " (see method handle_expand_no_children
                       " of class lcl_application)
NODE-TEXT = WA_SFLIGHT-CARRID.
APPEND NODE TO NODE_TABLE.
ENDAT.
AT NEW CONNID.
Node with key 'Child2'
NODE-NODE_KEY = WA_SFLIGHT-CONNID. "#EC NOTEXT
                            " Key of the node
" Node is inserted as child of the node with key 'Root'.
NODE-RELATKEY = WA_SFLIGHT-CARRID.
NODE-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD.
NODE-HIDDEN = ' '.
NODE-DISABLED = ' '.
NODE-ISFOLDER = 'X'.
CLEAR NODE-N_IMAGE.
CLEAR NODE-EXP_IMAGE.
NODE-EXPANDER = ' '. " The node is marked with a '+', although
                       " it has no children. When the user clicks on the
                       " + to open the node, the event
                       " expand_no_children is fired. The programmer can
                       " add the children of the
                       " node within the event handler of the
                       " expand_no_children event
                       " (see method handle_expand_no_children
                       " of class lcl_application)
NODE-TEXT = WA_SFLIGHT-CONNID.
APPEND NODE TO NODE_TABLE.
ENDAT.
Node with key 'Child3'
NODE-NODE_KEY = WA_SFLIGHT-FLDATE. "#EC NOTEXT
                            " Key of the node
" Node is inserted as child of the node with key 'Root'.
NODE-RELATKEY = WA_SFLIGHT-CONNID.
NODE-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD.
NODE-HIDDEN = ' '.
NODE-DISABLED = ' '.
NODE-ISFOLDER = ' '.
CLEAR NODE-N_IMAGE.
CLEAR NODE-EXP_IMAGE.
NODE-EXPANDER = ' '. " The node is marked with a '+', although
                       " it has no children. When the user clicks on the
                       " + to open the node, the event
                       " expand_no_children is fired. The programmer can
                       " add the children of the
                       " node within the event handler of the
                       " expand_no_children event
                       " (see method handle_expand_no_children
                       " of class lcl_application)
NODE-TEXT = WA_SFLIGHT-FLDATE.
APPEND NODE TO NODE_TABLE.
ENDLOOP.
Message was edited by:
        Madhu Shankar Nair

How to set the control-on hierarchical tree nodes

Hi,
I have created form in which at the left it has hierarchical tree structure(BOM) and towards the right it brings up the query results for selected node.
Now, I have a button upon clicking which I navigate to the root node by issuing
"Ftree.set_Tree_selection(htree, 1, Ftree.select_on);".
But, it cannot automatically run the ' when-tree-node-selected' trigger '.
any solution???
Its really urgent.I have a customer demo on monday.
Please help me asap.
regards,
Nagadeep.

Hello Nagadeep,
couldn't you just put the code from the trigger into a procedure
and run that after the navigation to the item?
Just a thought,
Bernd
The docs state that:
No programmatic action will cause the When-Tree-Node-Selected trigger to fire. Only end-user action will generate an event.
Probably due to performance reasons.
Bernd
Message was edited by:
Bernd Prechtl

How to add a report to HR Report tree

Hello Friends,
I need to add a report to HR Report tree.
Guide me how to do it.
Cheers
Senthil

Use transaction SE43 and SE43N.
Check this threads
How to add a report into the tree??
Adding report/program to Report Tree
Manoj.

How to add document navigator control into a plug-in window?

I develop a filter plug-in for Photohsop CS2, but I wonder how to add navigator controll in the plug-in window. The navigator works int the same way like Photoshop navigator - moving cursor on the navigator makes the image scroll in the main previes. I want to have both, the navigator and a main preview window in the filter plug-in window. I saw it many times, however, I did not find example in Photoshop CS2 filter SDK.
If somebody could point me to a resource, that could get me to the right track, i would be glad.
Thanks
Rene.

Chris hello,
It is good to know that plugins can not control the docunment view in Photoshop. However, my idea was to have preview in Photoshop plug-in window, and then to have small navigator that would scroll the preview. Exactly like on this Photoshop plug-in:
http://data.unipixels.com/screenshot.jpg
Please notice tha navigator on the right side of the window. Moving the red rectangle in it will scroll the middle preview window.
With regards,
Rene.

How to add keyboard control on our tree.

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