And may be need to add some new definitions
TBSTYLE_EX_MIXEDBUTTONS = 08h
TBSTYLE_EX_HIDECLIPPEDBUTTONS = 10h ;don't show partially obscured buttons
TBSTYLE_EX_DOUBLEBUFFER = 80h ;Double Buffer the toolbar
TBSTYLE_AUTOSIZE = 10h ;obsolete; use BTNS_AUTOSIZE instead
TBSTYLE_NOPREFIX = 20h ;obsolete; use BTNS_NOPREFIX instead
BTNS_BUTTON = TBSTYLE_BUTTON ; 0x0000
BTNS_SEP = TBSTYLE_SEP ; 0x0001
BTNS_CHECK = TBSTYLE_CHECK ; 0x0002
BTNS_GROUP = TBSTYLE_GROUP ; 0x0004
BTNS_CHECKGROUP = TBSTYLE_CHECKGROUP ; (TBSTYLE_GROUP | TBSTYLE_CHECK)
BTNS_DROPDOWN = TBSTYLE_DROPDOWN ; 0x0008
BTNS_AUTOSIZE = TBSTYLE_AUTOSIZE ; 0x0010; automatically calculate the cx of the button
BTNS_NOPREFIX = TBSTYLE_NOPREFIX ; 0x0020; this button should not have accel prefix
BTNS_SHOWTEXT = 40h ; ignored unless TBSTYLE_EX_MIXEDBUTTONS is set
BTNS_WHOLEDROPDOWN = 80h