OLE & ABAP

[Former Member]

Hi,

I have a problem. I have a function which's signature is;

bool isPossible(); //in .NET environment

And the corresponding code of this signature in ABAP/4;

DATA: RESULT TYPE I VALUE 8.

DATA: APP TYPE OLE2_OBJECT.

...

CREATE OBJECT APP 'X.APPLICATION'.

CALL METHOD OF APP 'isPossible' = RESULT.

But, I see that RESULT is 8, not changed. How can I get the result of isPossible method. Normally, it returns boolean value. But in ABAP, what is the corresponding type of boolean?

Thanks.

[Former Member]

Hi,

I have a problem. I have a function which's signature is;

bool isPossible(); //in .NET environment

And the corresponding code of this signature in ABAP/4;

DATA: RESULT TYPE I VALUE 8.

DATA: APP TYPE OLE2_OBJECT.

...

CREATE OBJECT APP 'X.APPLICATION'.

CALL METHOD OF APP 'isPossible' = RESULT.

But, I see that RESULT is 8, not changed. How can I get the result of isPossible method. Normally, it returns boolean value. But in ABAP, what is the corresponding type of boolean?

Thanks.

[Former Member]

The boolean equivalen in SAP is: <b>SAP_BOOL</b> (X=True, Space=False)

[Former Member]

Hi Sam,

Is there any include to use SAP_POOL? I can not define like;

DATA RESULT TYPE SAP_BOOL.

Compiler gives error as: "SAP_BOOL IS UNKNOWN"

Thanks.

[Former Member]

it should work.

try like this.

data: b1 type SAP_BOOL.

[Former Member]

No you dont! Maybe it is your vesion.

Goto SE11 and see if you have the data type SAP_BOOL

[Former Member]

Hi, I have just checked SAP_BOOL from SE11. There is no type as SAP_BOOL. But there is another type BOOLEAN. I have used this type for my purpose;

DATA RESULT type BOOLEAN.

DATA: APP TYPE OLE2_OBJECT.

...

CREATE OBJECT APP 'X.APPLICATION'.

CALL METHOD OF APP 'isPossible' = RESULT.

isPossible method returns true. But, RESULT is ''. Also, I changed the condition that isPossible return false, but again RESULT is ''. I mean that I can not get the result of this method in OLE. What should I do?

[Former Member]

hi, try this way;

CALL METHOD OF APP 'isPossible' = RESULT <b>NO FLUSH</b>.

Hope it will be helpful

[Former Member]

Hi Huseyin,

1. Try with C(10)

ie. some character having some length

regards,

amit m.

[former_member182670]

You should use type C, beacuse OLE methods with return type boolean return '0' or '1' in ABAP instead of 'X' and ' '.

You should note that ABAP buffers OLE statements to first non-OLE statement.

So when you write this code and check value of lv_b in debugger it will be empty:

REPORT ZOLE .

INCLUDE ole2incl .

 DATA: lr_o TYPE ole2_object,
       lv_b type c.


CREATE OBJECT lr_o 'BT.BTester'.

CALL METHOD OF lr_o 'retT' = lv_b .


CALL METHOD OF lr_o 'retF' = lv_b .

but when you write

REPORT ZOLE .

INCLUDE ole2incl .

 DATA: lr_o TYPE ole2_object,
       lv_b type c.


CREATE OBJECT lr_o 'BT.BTester'.

CALL METHOD OF lr_o 'retT' = lv_b .
check sy-subrc = 0.

CALL METHOD OF lr_o 'retF' = lv_b .
check sy-subrc = 0.

you should see that after call of 'retT' lv_b hasa value '1' and after call of 'retF' lv_b is '0'.

Thats beacuse 'check sy-subrc = 0.' is non-OLE statement and it causes ABAP to execute previous buffered OLE statements.

PS. BT.BTester was my test object with two methods:

retT - simply returns true

retF - returns false

Message was edited by: Tomasz Mackowski

[Former Member]

Thanks Tomasz