Answer / kishore kumar naik p

"Somil Vijay" is wrong here. SetWindowPos is used to resize
the dialog. "San" is right, see example below

CYourDialog::OnInitDialog()
{
....
CRgn oRgn;
oRgn.CreateEllipticRgn(10,10,100,100);

CWnd *pWnd = GetDlgItem(IDC_BUTTON_ID);

if(NULL != pWnd)
{
pWnd->SetWindowRgn(oRgn);
}
....
}

Instead of "CreateEllipticRgn" you can many other methods to
create the shape that is required for you.

Answer / san

Use SetWindowRgn function of the CWnd class. You could
specify the shape of the region as a parameter of this function.

Answer / somil vijay

Use Setwindowspos function of Cwnd class .Use this function
on Cbutton object.

BOOL CWnd::SetWindowPos(
const CWnd* pWndInsertAfter,
int x,
int y,
int cx,
int cy,
UINT nFlags
);

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