Hi,

Does anyone know how to make toolbar transparent? I mean the toolbar's uses the background filled via FillDockBar.

Best

See code of void CXTPNativeXPTheme::FillCommandBarEntry(CDC* pDC, CXTPCommandBar* pBar)

it can help...

This code seems use the same function to draw both of them. It works well with solid background, but what if the background is a picture? What I want is the thing like MFC toolbar on the rebar, with whom I can draw a picture on the rebar and make toolbar transparent, then the toolbar button will show on the picture.

Thanks

oleg wrote: See code of void CXTPNativeXPTheme::FillCommandBarEntry(CDC* pDC, CXTPCommandBar* pBar) it can help...

In FillCommandBarEntry you must draw part of this picture to make it look like transparent.

Windows doesn't allow to make child window transparent.

In my previous project, I use this trick to let parent window draw child window.

  CPoint pt (0, 0);
  pWnd->MapWindowPoints (pParent, &pt, 1);
  pt = pDC->OffsetWindowOrg (pt.x, pt.y);

  bRes = (BOOL) pParent->SendMessage (WM_ERASEBKGND, (WPARAM)pDC->m_hDC);

  pDC->SetWindowOrg(pt.x, pt.y);

But it does not work with XTP, because XTP draws the DockBar in OnPaint, not OnEraseBkgnd, any suggestion?

Thanks

ok, here is your sample

http://forum.codejock.com/uploads/oleg/2005-07-13_073536_BitmapBackground.zip - 2005-07-13_073536_BitmapBackground.zip

Sorry for bring this thread back.

I still think XTP command bar shall redraw the background in OnErase handler. For example, I have another control placed on the bar, if XTP's bar redraw the background in OnErase handle, then I only need to use the following code to make my control transparent:

CPoint pt (0, 0);
  pWnd->MapWindowPoints (pParent, &pt, 1);
  pt = pDC->OffsetWindowOrg (pt.x, pt.y);

  bRes = (BOOL) pParent->SendMessage (WM_ERASEBKGND, (WPARAM)pDC->m_hDC);

  pDC->SetWindowOrg(pt.x, pt.y);

The big advantage of this way is the control actually not even know it's parent is the XTP bar, thus makes the control more independent.

Best

Jeff

Hi,

Standard controls and CommandBars too supports WM_PRINT message.

instead bRes = (BOOL) pParent->SendMessage (WM_ERASEBKGND, (WPARAM)pDC->m_hDC);

try

pParent->Print(pDC, PRF_CLIENT);