SBM_ENABLE_ARROWS
An
application sends the SBM_ENABLE_ARROWS message to enable or disable one or
both arrows of a scroll bar control.
SBM_ENABLE_ARROWS
wParam = (WPARAM) fuArrowFlags; // scroll-bar arrow
flags
lParam = 0; // not used; must be zero
Parameters
fuArrowFlags
Specifies
whether the scroll bar arrows are enabled or disabled and indicates which
arrows are enabled or disabled. This parameter can be one of the following
values:
|
Value |
Meaning |
|
ESB_DISABLE_BOTH |
Disables
both arrows on a scroll bar. |
|
ESB_DISABLE_DOWN |
Disables
the down arrow on a vertical scroll bar. |
|
ESB_DISABLE_LTUP |
Disables
the left arrow on a horizontal scroll bar or the up arrow on a vertical
scroll bar. |
|
ESB_DISABLE_LEFT |
Disables
the left arrow on a horizontal scroll bar. |
|
ESB_DISABLE_RTDN |
Disables
the right arrow on a horizontal scroll bar or the down arrow on a vertical
scroll bar. |
|
ESB_DISABLE_UP |
Disables
the up arrow on a vertical scroll bar. |
|
ESB_ENABLE_BOTH |
Enables
both arrows on a scroll bar. |
Return Values
If the
message succeeds, the return value is TRUE; otherwise, it is FALSE.