tdf#144166 use border drawing style for VclScrolledWindow

to avoid rounded rectangles on Windows.

Change-Id: I29b9631ec0f3d125cbf103b0c12580a41f9b9264
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/129030
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/vcl/source/window/layout.cxx b/vcl/source/window/layout.cxx
index 91dcc41..da259ec 100644
--- a/vcl/source/window/layout.cxx
+++ b/vcl/source/window/layout.cxx
@@ -1815,7 +1815,7 @@ VclScrolledWindow::VclScrolledWindow(vcl::Window *pParent)
    : VclBin(pParent, WB_HIDE | WB_CLIPCHILDREN | WB_AUTOHSCROLL | WB_AUTOVSCROLL | WB_TABSTOP)
    , m_bUserManagedScrolling(false)
    , m_eDrawFrameStyle(DrawFrameStyle::NONE)
    , m_eDrawFrameFlags(DrawFrameFlags::NONE)
    , m_eDrawFrameFlags(DrawFrameFlags::WindowBorder)
    , m_pVScroll(VclPtr<ScrollBar>::Create(this, WB_HIDE | WB_VERT))
    , m_pHScroll(VclPtr<ScrollBar>::Create(this, WB_HIDE | WB_HORZ))
    , m_aScrollBarBox(VclPtr<ScrollBarBox>::Create(this, WB_HIDE))
@@ -2066,7 +2066,9 @@ bool VclScrolledWindow::set_property(const OString &rKey, const OUString &rValue
        }
        else if (rKey == "name")
        {
            m_eDrawFrameFlags = rValue == "monoborder" ? DrawFrameFlags::Mono : DrawFrameFlags::NONE;
            m_eDrawFrameFlags = DrawFrameFlags::WindowBorder;
            if (rValue == "monoborder")
                m_eDrawFrameFlags |= DrawFrameFlags::Mono;
        }

        auto nBorderWidth = CalcBorderWidth();