GBM_SETBITMAPINDEX - Parameters
usGBState (USHORT)
State
of graphic button whose index is to be changed.
GB_UP
Set the bitmap used when in the Up state.
GB_DOWN
Set the bitmap used when in the Down
state.
GB_HILITE
Set the bitmap used when in the
highlighted state.
GB_DISABLE
Set the bitmap used when in the
disabled state.
GB_ANIMATIONBEGIN
Where animation must begin.
GB_ANIMATIONEND
Where animation must end.
GB_CURRENTSTATE
Refers to either up or down
bitmaps; depends on whether the button is in the Up or Down state.
usFrameCode (USHORT)
Frame
code.
GB_INDEX_FORWARD
Advance to next bitmap index in
circular array.
GB_INDEX_BACKWARD
Set to previous bitmap index
in circular array.
GB_INDEX_FIRST
Set to first bitmap index.
GB_INDEX_LAST
Set to last bitmap index.
desired_bit_map
Otherwise, use usFrameCode
number as the bitmap index.
rc (ULONG)