How can we chnage ArtBoard rectangle by programatically?

Question

Hello ,
I want to change the ArtBoard rectangle left, top, right and bottom values.
I found the AIDocumentSuite::SetDocumentCropBox( ) API and set it like below
AIRealRect cropBox = {0, 850, 1700, 0}; //left, top, right, bottom
error = sAIDocument->SetDocumentRulerUnits(kCentimetersUnits);
error = sAIDocument->SetDocumentCropBox(&cropBox);
error = sAIDocument->RedrawDocument( );
After this, the document is shown like in ArtBoard.jpg file (attached here).
So, from this .jpg file what Im guessing is, a new art is created instead of changing the values of already presented ArtBoard.
I dont want to create a new ArtBoard, I just need to change the ArtBoard rectangle values. How can I do this?

Answer 1

SetDocumentCropBox will do exactly what it is supposed to - crop the document - not change the ArtBoard.
One look at the AiDocument documentation tells you everything you need to know. Do you have the documentation? I would suggest downloading it if you don't.
You need to use something like (I just wrote this; not tested):
AIDocumentSetup docSetup;
error = sAIDocument->GetDocumentSetup(&docSetup);
//UNITS are in POINTS
docSetup.width = 850;
docSetup.height = 1700;
error = sAIDocument->SetDocumentSetup(&docSetup);