How to Call a Dll File of Windows Using SAP ABAP _ SCN

How to call a dll file of windows using SAP ABAP | SCN

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http://scn.sap.com/docs/DOC-51658

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Version 2

created by Marcelo Macedo on Jan 23, 2014 5:46 PM, last modified by Marcelo Macedo on Jan 27, 2014 2:10 PM

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In ABAP language exists many forms to connect and i want explain how to call dll files for Windows Below follow step by step to construction: 1 – Create the dll files. In my example i am using the visual basic language, but you can use another language of programmer (ex.: Delphi, C# etc)

VERSION 1.0 CLASS BEGIN MultiUse = -1 Persistable = 0

'True 'NotPersistable

DataBindingBehavior = 0

'vbNone

DataSourceBehavior

= 0

'vbNone

MTSTransactionMode

= 0

'NotAnMTSObject

END Attribute VB_Name = "DLL_VB" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = True Attribute VB_PredeclaredId = False Attribute VB_Exposed = True ' Declaration of variable return Private s_retorno As String Public Property Get retorno() As String retorno = "retorno: " & s_retorno End Property ' Function that receives the command and variable playing in s_retorno Public Function envia_comando(ByRef s_comando As String) s_retorno = s_comando End Function

1.1 - After building the DLL you need to register in windows using the command: regsvr32 .dll

A er this you are should look the pop-up with message:

2 - Execute the program regedit.exe in Windows System and nd the name of DLL le

09/09/2016 10:58

How to call a dll file of windows using SAP ABAP | SCN

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http://scn.sap.com/docs/DOC-51658

You need find two values in regedit.exe. CLsid : {2EC47E73-2E05-45BA-AC8B-CD7E798D4034}

TypeLib: {4F4B5B12-5F45-43DB-A06E-2065395F9866}

3 - This values do you must put in transaction SOLE

4 - Below the example in SAP ABAP that call dll file in Windows. This example: send a string and return another string using the file dll *"---------------------------------------------------------------------*"*"Interface local: *"

IMPORTING

*" VALUE(I_COMANDO) TYPE *"

CHAR20 OPTIONAL

EXPORTING

*" VALUE(E_RETORNO) TYPE *"

CHAR20

EXCEPTIONS

*" CREATE_OBJECT_ERROR *" GET_PROPR_ERROR *"

CALL_ERROR

*" FREE_OBJ_ERROR *"---------------------------------------------------------------------* Includes INCLUDE ole2incl. * Global Variables DATA: obj_vb TYPE ole2_object, vg_comando(20) TYPE c, vg_retorno(20) TYPE c. * sends the command to the dll vg_comando = I_COMANDO. * Creating the object to use the DLL

09/09/2016 10:58

How to call a dll file of windows using SAP ABAP | SCN

3 de 3

http://scn.sap.com/docs/DOC-51658

CREATE OBJECT obj_vb 'TESTDLL'. IF sy-subrc NE 0. RAISE create_object_error. ENDIF. * Sending the command to the dll CALL METHOD OF obj_vb 'envia_comando' EXPORTING #1 = vg_comando. * Receiving command of dll get property of obj_vb 'RETORNO' = vg_retorno. IF sy-subrc NE 0. RAISE get_propr_error. ELSE. E_RETORNO = vg_retorno. ENDIF. * Deallocates the object memory FREE OBJECT obj_vb. IF sy-subrc NE 0. RAISE free_obj_error. ENDIF. ENDFUNCTION.

I have helped, any questions please send a message. Regards Marcelo Macedo

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Categories: ABAP Development

Topics: abap Tags: abap_objects

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09/09/2016 10:58