Registering events for own GUI controls

Hi,
I refer to the blog
<a href="/people/thomas.jung3/blog/2004/09/01/using-net-windows-controls-in-the-abap-control-framework:///people/thomas.jung3/blog/2004/09/01/using-net-windows-controls-in-the-abap-control-framework
In the mean time I was successful regarding the display of the media player inplace in the SAPGUI. But I didn't succeed with event handling of native events. The redefined method 'dispatch' is never called, altough I registered events as:
DATA: my_simple_event TYPE cntl_simple_event.
DATA: my_simple_events TYPE cntl_simple_events.
****Register Media Player Events with CFW
my_simple_event-eventid = go_mp3->evt_endofstream.
Specify that it's an application event
my_simple_event-appl_event = 'X'.
APPEND my_simple_event TO my_simple_events.
Redefine SET_REGISTERED_EVENTS
CALL METHOD go_mp3->set_registered_events
 EXPORTING
 events = my_simple_events
 EXCEPTIONS
 illegal_event_combination = 1
 OTHERS = 2.
****Set Event handler for Media Player
SET HANDLER g_application->handle_end_of_stream FOR go_mp3.
Does anybody have an running example, e.g. for the event handling of 'STOP button clicked' event in the media player?
Furthermore: Is there a free download of the OLE object viewer?
Thanks a lot,
Thomas

Hi Juergen,
Sorry - not an answer. But I would like to hear from you if you manage to solve this problem. I am also working on using a custom COM object (VB.NET) in the SAPGui and am battling to capture events triggered by the control.
In particular I am trying to find the eventID of an event so that I can register it in SAP - do you know how to capture and view the event ID of lets say the mouse 'click' event of your control?
How are you identifying your events and registering them in SAP?. I have very little experience in Delphi - but I'm hoping COM is universal enough?
Hope you find your answer! Sorry I only have questions!
Regards,
Neil

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Component integration: Control framework / create your own gui controls

Hi,
Does anyone know where to find documentation about creating your own gui controls, like cl_gui_picture.
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Kind regards
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Hi Keld,
Check out /people/thomas.jung3/blog/2004/09/01/using-net-windows-controls-in-the-abap-control-framework
And
/people/thomas.jung3/blog/2005/05/11/using-classic-activex-controls-in-the-abap-control-framework
I have been able to create and use my own control in the SAP GUI - but I'm still trying to figure out how to handle any events raised by that control.
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Problems with Mouse Down event for a picture control embedded in tab.

I noticed that when trying to get a Mouse Down event for a picture control that the Mouse Down will not be 'fired' if the picture is embedded in a tab control. It also appears that this problem exists for other controls (I only tested a slider in addition to the picture). It isn't much of an issue for me now as I can just poll the mouse property of the picture control, but the Mouse Down event has information that I may want access to in my next software revision (button pressed, and Alt mod). I could do that by handling the Mouse Down event for the tab itself and checking to see if the the mouse property isn't -1, -1 for the picture, but that seems a little bit too kludgy (sp?) to me and wouldn
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Attachments:
TabProblem.vi ‏69 KB

The problem I reported above was in LV 6.1.
As a work-around, I used the mouse down on the tab control and did the math to decide if the picture was clicked.
I have been told that this was fixed in LV 7.0. I can not confirm.
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Generating many events for a dial control

I want to fire events when the value of dial control increases to say 10, 20,30 so on. But I can only have one event per control. Is it possible to achieve this
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Go to Solution.

Austin,
If I'm interpreting your request correctly I think your best bet is to just use the value changed event and then use a case structure to determine which value the dial has changed to.
Something like this:
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Joe is correct on this one. The callback where designed to take variants as their inputs, so that they are more flexible. In addition Variants are used through out ActiveX programming.
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Mouse down event handling of table control in subvi

Hello Everyone.......
I have created a vi which has a table control and xy graph... the function of the vi is to plot the data of two particular column of table into xy-graph after user selects the data from table.... In this vi , I have used mouse down event for selecting data set so that the color of selected row get changed for user reference....... the vi is working fine.....
My problem is that this vi is a part of main vi.. and I want to use this vi as a subvi.... So, in my main vi I have a table control which is connected as input to the subvi... I come to know that I need to register event for triggering a event in a subvi.......
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See the modified version of the VI. I use the 'Point to Row Column' method to get the cell that was clicked on - your method also worked using 'Selection Start' but I thought I'd show you an alternative.
I've used a single event structure to update two table controls - the point is that if you have the references to the controls you can update the control from anywhere. You can also 'register for events' to allow you to register for events from a different VI (again, using the references) that doesn't have the control on the front panel.
Couple of things about your VI:
You don't need to put a wait node if you have a timeout on your event structure.
You don't need the for loop for the columns/rows - if you look at the help for the 'Active Cell' property you can use a value of -2 for the row/column to select all cells in the row/column.
Certified LabVIEW Architect, Certified TestStand Developer
NI Days (and A&DF): 2010, 2011, 2013, 2014
NI Week: 2012, 2014
Knowledgeable in all things Giant Tetris and WebSockets
Attachments:
Highlight Selected Row in Table Control_lv2009.vi ‏13 KB

Problem with register event callback in use of instrument control

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Attachments:
callback vi.png ‏8 KB
register event callback.png ‏8 KB

You would wire the event registration wire that comes out of the Register for Events node into an event structure. You will need to right click on the event structure and check off "Show Dynamic Event Terminals" and it into that. Then you can create a new Event Case that uses the dynamic event. You can place your subVI in that event in whatever way you want. (Just drop the subVI in or do a Call by Reference there, or whatever.) Look in the Example Finder for "Dynamically Register for Events.vi".

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hi all,
i just want to change the attributes of GUI CONTROLS in my own program.
for example `
How to set an ICON on my GUI BUTTON in the program?
so what's the mapping between CONTROL in the SCREEN PAINTER and variable in the program?

Hi Chao Liu,
Ya , u first find out the PF-STATUS of the screen and goto that status and now u can modify the ICON u want .
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How can I register an EVENT for ALV-GRID?????

Hi,
i have create Events for my ALV-Grid Table (cl_gui_alv_grid).
But there is one Problem!!!!
Which Event must i create, if users write something in the ALV row and press to key "enter" ???
With kind regards
Ersin

Did you set the handler for one of forementioned events? If no, please suplement your code with the following
"create handler class
CLASS lcl_gui_alv_event_receiver DEFINITION.
PUBLIC SECTION.
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"       To be triggered after data changing is finished
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"implement you handler methods
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METHOD handle_data_changed .
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ENDMETHOD.
METHOD handle_data_changed_finished .
     MESSAGE 'Data changed finished' TYPE 'I'.
ENDMETHOD .
ENDCLASS.
data: g_alv_event_ref TYPE REF TO lcl_gui_alv_event_receiver.
CREATE OBJECT g_alv_event_ref.
"set handlers for these events
SET HANDLER:
g_alv_event_ref->handle_data_changed FOR g_alv_grid_ref,
g_alv_event_ref->handle_data_changed_finished FOR g_alv_grid_ref,
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gs_event-eventid = cl_gui_toolbar=>m_id_function_selected.
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definition
handle_function_selected FOR EVENT handle_function_selected OF cl_gui_toolbar IMPORTING fcode.
implementation
CASE fcode.
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this method might change depending upon the class you use for creating the tree.
i hope this will help you.
in case of clarification do get back to me.
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Event for the List Box in ALV Grid Control

Hello,
I have the below urgent requirment.
I have an ALV Grid Control built using ABAP Objects. In the grid, I have few fields and one of these fields is a List Box. Depending on the values selected, I need to enable or disable some fields. So, is there any event for the List box in ALV Grid Control.
For ex: I have 2 Fields, Designation and Commission. The designation field is a List Box field having 'Software Engineer' and 'Manager' as values. When I select 'Software Engineer', the commission field should be disabled. When I select 'Manager', the comission field should be enabled.
Early reply is hightly appreciated.
Priya

REPORT ZTEST1234 MESSAGE-ID ZZ .
DATA: G_GRID TYPE REF TO CL_GUI_ALV_GRID.
DATA: L_VALID TYPE C,
 V_FLAG,
 V_DATA_CHANGE,
 V_ROW TYPE LVC_S_ROW,
 V_COLUMN TYPE LVC_S_COL,
 V_ROW_NUM TYPE LVC_S_ROID.
DATA: OK_CODE LIKE SY-UCOMM,
 SAVE_OK LIKE SY-UCOMM,
 G_CONTAINER1 TYPE SCRFNAME VALUE 'TEST',
 GS_LAYOUT TYPE LVC_S_LAYO.
DATA:BEGIN OF ITAB OCCURS 0,
 VBELN LIKE LIKP-VBELN,
 POSNR LIKE LIPS-POSNR,
 COMISN(10),
 CELLCOLOR TYPE LVC_T_SCOL, "required for color
 DROP(20),
 HANDLE_STYLE TYPE LVC_T_STYL,
 END OF ITAB.
* CLASS lcl_event_handler DEFINITION
CLASS LCL_EVENT_HANDLER DEFINITION .
PUBLIC SECTION .
 METHODS:
**Hot spot Handler
 HANDLE_HOTSPOT_CLICK FOR EVENT HOTSPOT_CLICK OF CL_GUI_ALV_GRID
 IMPORTING E_ROW_ID E_COLUMN_ID ES_ROW_NO,
**Handler to Check the Data Change
 HANDLE_DATA_CHANGED FOR EVENT DATA_CHANGED
 OF CL_GUI_ALV_GRID
 IMPORTING ER_DATA_CHANGED
 E_ONF4
 E_ONF4_BEFORE
 E_ONF4_AFTER,
**Double Click Handler
 HANDLE_DOUBLE_CLICK FOR EVENT DOUBLE_CLICK OF CL_GUI_ALV_GRID
 IMPORTING E_ROW E_COLUMN ES_ROW_NO.
ENDCLASS. "lcl_event_handler DEFINITION
* CLASS lcl_event_handler IMPLEMENTATION
CLASS LCL_EVENT_HANDLER IMPLEMENTATION.
*Handle Hotspot Click
METHOD HANDLE_HOTSPOT_CLICK .
 CLEAR: V_ROW,V_COLUMN,V_ROW_NUM.
 V_ROW = E_ROW_ID.
 V_COLUMN = E_COLUMN_ID.
 V_ROW_NUM = ES_ROW_NO.
 MESSAGE I000 WITH V_ROW 'clicked'.
ENDMETHOD. "lcl_event_handler
*Handle Double Click
METHOD HANDLE_DOUBLE_CLICK.
ENDMETHOD. "handle_double_click
**Handle Data Change
METHOD HANDLE_DATA_CHANGED.
 DATA: X_CHANGE TYPE LVC_S_MODI,
 X_FINAL TYPE ITAB,
 L_FLAG,
 LS_OUTTAB LIKE LINE OF ITAB.
 DATA: LS_EDIT TYPE LVC_S_STYL,
 LT_EDIT TYPE LVC_T_STYL.
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 LS_EDIT-FIELDNAME = 'COMISN'.
 LS_EDIT-STYLE = CL_GUI_ALV_GRID=>MC_STYLE_DISABLED.
 LS_EDIT-STYLE2 = SPACE.
 LS_EDIT-STYLE3 = SPACE.
 LS_EDIT-STYLE4 = SPACE.
 LS_EDIT-MAXLEN = 8.
 INSERT LS_EDIT INTO TABLE LT_EDIT.
 INSERT LINES OF LT_EDIT INTO TABLE LS_OUTTAB-HANDLE_STYLE.
 MODIFY ITAB INDEX X_CHANGE-ROW_ID FROM LS_OUTTAB TRANSPORTING
 HANDLE_STYLE .
 else.
 LS_EDIT-FIELDNAME = 'COMISN'.
 LS_EDIT-STYLE = CL_GUI_ALV_GRID=>MC_STYLE_ENABLED.
 LS_EDIT-STYLE2 = SPACE.
 LS_EDIT-STYLE3 = SPACE.
 LS_EDIT-STYLE4 = SPACE.
 LS_EDIT-MAXLEN = 8.
 INSERT LS_EDIT INTO TABLE LT_EDIT.
 INSERT LINES OF LT_EDIT INTO TABLE LS_OUTTAB-HANDLE_STYLE.
 MODIFY ITAB INDEX X_CHANGE-ROW_ID FROM LS_OUTTAB TRANSPORTING
 HANDLE_STYLE .
 ENDIF.
 ENDLOOP.
 CALL METHOD G_GRID->REFRESH_TABLE_DISPLAY
 EXCEPTIONS
 FINISHED = 1
 OTHERS = 2.
 IF SY-SUBRC <> 0.
 MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
 ENDIF.
ENDMETHOD. "HANDLE_DATA_CHANGED
ENDCLASS. "LCL_EVENT_HANDLER IMPLEMENTATION
*& Global Definitions
DATA: G_CUSTOM_CONTAINER TYPE REF TO CL_GUI_CUSTOM_CONTAINER,"Container1
 G_HANDLER TYPE REF TO LCL_EVENT_HANDLER. "handler
*- Fieldcatalog for First and second Report
DATA: IT_FIELDCAT TYPE LVC_T_FCAT,
 X_FIELDCAT TYPE LVC_S_FCAT,
 LS_VARI TYPE DISVARIANT.
* START-OF_SELECTION
START-OF-SELECTION.
SELECT VBELN
 POSNR
 FROM LIPS
 UP TO 20 ROWS
 INTO CORRESPONDING FIELDS OF TABLE ITAB.
END-OF-SELECTION.
IF NOT ITAB[] IS INITIAL.
 CALL SCREEN 100.
ELSE.
 MESSAGE I002 WITH 'NO DATA FOR THE SELECTION'(004).
ENDIF.
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* text
FORM CREATE_AND_INIT_ALV .
DATA: LT_EXCLUDE TYPE UI_FUNCTIONS.
CREATE OBJECT G_CUSTOM_CONTAINER
 EXPORTING CONTAINER_NAME = G_CONTAINER1.
CREATE OBJECT G_GRID
 EXPORTING I_PARENT = G_CUSTOM_CONTAINER.
* Set a titlebar for the grid control
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GS_LAYOUT-GRID_TITLE = TEXT-003.
 GS_LAYOUT-STYLEFNAME = 'HANDLE_STYLE'.
GS_LAYOUT-ZEBRA = SPACE.
GS_LAYOUT-CWIDTH_OPT = 'X'.
GS_LAYOUT-NO_ROWMARK = 'X'.
GS_LAYOUT-CTAB_FNAME = 'CELLCOLOR'.
 CALL METHOD G_GRID->REGISTER_EDIT_EVENT
 EXPORTING
 I_EVENT_ID = CL_GUI_ALV_GRID=>MC_EVT_MODIFIED.
CREATE OBJECT G_HANDLER.
SET HANDLER G_HANDLER->HANDLE_DOUBLE_CLICK FOR G_GRID.
SET HANDLER G_HANDLER->HANDLE_HOTSPOT_CLICK FOR G_GRID.
 SET HANDLER G_HANDLER->HANDLE_DATA_CHANGED FOR G_GRID.
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DATA: L_INDEX TYPE SY-TABIX.
"Here i am changing the color of line 1,5,10...
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LOOP AT ITAB.
 L_INDEX = SY-TABIX.
 IF L_INDEX = 1 OR L_INDEX = 5 OR L_INDEX = 10.
 LS_CELLCOLOR-FNAME = 'VBELN'.
 LS_CELLCOLOR-COLOR-COL = '6'.
 LS_CELLCOLOR-COLOR-INT = '0'.
 LS_CELLCOLOR-COLOR-INV = '1'.
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 MODIFY ITAB INDEX L_INDEX TRANSPORTING CELLCOLOR.
 LS_CELLCOLOR-FNAME = 'POSNR'.
 LS_CELLCOLOR-COLOR-COL = '6'.
 LS_CELLCOLOR-COLOR-INT = '0'.
 LS_CELLCOLOR-COLOR-INV = '1'.
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 ENDIF.
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 EXPORTING
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PERFORM SET_DRDN_TABLE.
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LS_VARI-HANDLE = SPACE.
LS_VARI-LOG_GROUP = SPACE.
LS_VARI-USERNAME = SPACE.
LS_VARI-VARIANT = SPACE.
LS_VARI-TEXT = SPACE.
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 IT_OUTTAB = ITAB[].
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* text
* -->PT_EXCLUDE text
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LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_DELETE_ROW.
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LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_APPEND_ROW.
APPEND LS_EXCLUDE TO PT_EXCLUDE.
LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_INSERT_ROW.
APPEND LS_EXCLUDE TO PT_EXCLUDE.
LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_MOVE_ROW.
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LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_COPY.
APPEND LS_EXCLUDE TO PT_EXCLUDE.
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LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_PASTE.
APPEND LS_EXCLUDE TO PT_EXCLUDE.
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* Fieldcatalog
FORM BUILD_FIELDCAT .
DATA: L_POS TYPE I.
L_POS = L_POS + 1.
X_FIELDCAT-SCRTEXT_M = 'Delivery'(024).
X_FIELDCAT-FIELDNAME = 'VBELN'.
X_FIELDCAT-TABNAME = 'ITAB'.
X_FIELDCAT-COL_POS = L_POS.
X_FIELDCAT-NO_ZERO = 'X'.
X_FIELDCAT-OUTPUTLEN = '10'.
X_FIELDCAT-HOTSPOT = 'X'.
APPEND X_FIELDCAT TO IT_FIELDCAT.
CLEAR X_FIELDCAT.
L_POS = L_POS + 1.
X_FIELDCAT-SCRTEXT_M = 'Item'(025).
X_FIELDCAT-FIELDNAME = 'POSNR'.
X_FIELDCAT-TABNAME = 'ITAB'.
X_FIELDCAT-COL_POS = L_POS.
X_FIELDCAT-OUTPUTLEN = '5'.
APPEND X_FIELDCAT TO IT_FIELDCAT.
CLEAR X_FIELDCAT.
L_POS = L_POS + 1.
X_FIELDCAT-SCRTEXT_M = 'Drop'(025).
X_FIELDCAT-FIELDNAME = 'DROP'.
X_FIELDCAT-TABNAME = 'ITAB'.
X_FIELDCAT-COL_POS = L_POS.
X_FIELDCAT-OUTPUTLEN = '5'.
X_FIELDCAT-EDIT = 'X'.
X_FIELDCAT-DRDN_HNDL = '1'.
X_FIELDCAT-DRDN_ALIAS = 'X'.
APPEND X_FIELDCAT TO IT_FIELDCAT.
CLEAR X_FIELDCAT.
L_POS = L_POS + 1.
X_FIELDCAT-SCRTEXT_M = 'Comissn'(025).
X_FIELDCAT-FIELDNAME = 'COMISN'.
X_FIELDCAT-TABNAME = 'ITAB'.
X_FIELDCAT-COL_POS = L_POS.
X_FIELDCAT-OUTPUTLEN = '10'.
X_FIELDCAT-EDIT = 'X'.
APPEND X_FIELDCAT TO IT_FIELDCAT.
CLEAR X_FIELDCAT.
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*& Module STATUS_0100 OUTPUT
* text
MODULE STATUS_0100 OUTPUT.
SET PF-STATUS 'MAIN100'.
SET TITLEBAR 'MAIN100'.
IF G_CUSTOM_CONTAINER IS INITIAL.
**Initializing the grid and calling the fm to Display the O/P
 PERFORM CREATE_AND_INIT_ALV.
ENDIF.
ENDMODULE. " STATUS_0100 OUTPUT
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* text
MODULE USER_COMMAND_0100 INPUT.
CASE SY-UCOMM.
 WHEN 'BACK'.
 LEAVE TO SCREEN 0.
ENDCASE.
ENDMODULE. " USER_COMMAND_0100 INPUT
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* text
FORM SET_DRDN_TABLE.
DATA:LT_DRAL TYPE LVC_T_DRAL,
 LS_DRAL TYPE LVC_S_DRAL.
LS_DRAL-HANDLE = '1'.
LS_DRAL-VALUE = 'S/W Engineer'.
LS_DRAL-INT_VALUE = 'S/W Engineer'.
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LS_DRAL-INT_VALUE = 'Manager'.
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Regards
vijay

Invalid input event for numeric control

Need to catch the event when invalid input being through out, customer doesn't like the notify.
George Zou
http://webspace.webring.com/people/og/gtoolbox

I haven't had a big problem with this, and I plan to continue to use numeric controls instead of making everything strings, but it does seem strange that CVI doesn't catch this. I like the automatic range checking options, the programmable increment/decrement buttons, and the ease of use.
You can use a quirk in CVI to catch this: if you enter an invalid number like 1.2.3 or 3...14159 or 1-2, CVI triggers EVENT_VAL_CHANGED, but leaves the original number unchanged. So you can create a case in the callback for the numeric control for EVENT_VAL_CHANGED, and in that case check to see if the value is the same as the previous value. If it is, assume an invalid input. EVENT_VAL_CHANGED does not get fired if you just press Enter without changing the value.
There are a couple of limitations or drawbacks to this approach. It doesn't save your invalid entry, so you have to enter the whole thing again instead of just correcting your mistake. EVENT_VAL_CHANGED also gets fired if you use Delete or Backspace, even if the number you end up with is the same as the previous. So this approach will flag that as an invalid entry.
See the attached example.
Attachments:
TestInvalidInput.zip ‏6 KB

ALV Grid: event for user return in ALV Grid Control

Hi developers,
i'm wanna do something after a user has pressed the return button in a alv grid control. For that i need probably a event. But i can not find a proper event in the documentation. Could one of you guys help me?
Best regards christian

Hi Christian
ALV grid is an encapsulated object, so it seems there is no way, you ought to implement the data_changed event. So if you want to make bulk data input and after trigger the event by pressing the return key, you should make the ALV Grid get your changes after pressing the key but not after a cell change of a modified cell.
To set this attribute:
CALL METHOD gr_alvgrid->register_edit_event
EXPORTING i_event_id = cl_gui_alv_grid=>mc_evt_enter .
This way "data_changed" event will be triggered whenever you press the return key while editing.
For some more information you can also refer to the tutorial <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/an%20easy%20reference%20for%20alv%20grid%20control.pdf">"An Easy Reference for ALV Grid Control"</a>.
Regards
*--Serdar <a href="https://www.sdn.sap.com:443http://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.sdn.businesscard.sdnbusinesscard?u=qbk%2bsag%2bjiw%3d">[ BC ]</a>

Is there an event for a composite has a new child control?

I want to know is there an event for a composite has a new child control?
For example,
Composite parent = new Composite();
Label child = new Label(parent, SWT.None);
I want to know the parent composite is getting a child label when new label
create then immediately.
Thanks.
Frank

Also, I got this comment (a bit of a warning) from Dimitri:
<blockquote>I just saw this pattern used by [customer] - they (used to check) if the member was senior, and if it was, it was responsible for some periodic cleanup tasks and whatnot.
This worked fine in the test application and broke immediately when we added dedicated cache servers, or standalone JMX console etc, i.e. it is perfectly possible for the Console to be senior without any application classes in it's classpath, or for the dedicated cache server to be senior and only application servers have logic in place to run stuff.</blockquote>
In other words, depending on your deployment, it may not be as simple as just "being senior", you may also want to use a "Role Name" for example (configurable and accessible per member).
Peace,
Cameron Purdy
Oracle Coherence: Data Grid for Java and .NET

Registering events for own GUI controls

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