I'm trying to create a Gradient Brush in windows mobile as follows:

HBITMAP hBitmap = CreateBitmap(16, 16, 1, 16, NULL);
HDC hDC = CreateCompatibleDC(NULL);
HBITMAP hPrevious = SelectObject(hDC,hBitmap);
TRIVERTEX vert[2];
GRADIENT_RECT gRect;
... fill in vert and gRect
GradientFill(hDC, vert, 2,&gRect, 1, Direction);
SelectObject(hDC, hPrevious);
Delete(hDC);

HBRUSH hPatternBrush = CreatePatternBrush(hBitmap);
HDC hDC = BeginPaint(hWnd, &ps);
SelectObject(hDC, hPatternBrush);
RoundRect(hDC, ...);
EndPaint(hWND, &ps);

This code create a round rect with a black background, not the pattern brush. I can draw the hBitmap which is used to create the brush and it draws the gradient. Anyone got a solution?