Messages of scrollbar control

Macros
#define	SBM_GETSCROLLINFO   0xF0E0
	Get the scroll information of the scrollbar. More...
#define	SBM_SETSCROLLINFO   0xF0E1
	Set the scroll information of the scrollbar. More...
#define	SBM_GETPOS   0xF0E2
	Get the thumb pos of the scrollbar. More...
#define	SBM_SETPOS   0xF0E3
	Set the thumb pos of the scrollbar. More...
#define	SBM_GETRANGE   0xF0E4
	Get the range of the scrollbar. More...
#define	SBM_SETRANGE   0xF0E5
	Set the range of the scrollbar. More...
#define	SBM_SETRANGEREDRAW   0xF0E6
	Set the range of the scrollbar. More...
#define	SBM_ENABLE_ARROW   0xF0E7
	Enable or disable the arrow of the scrollbar. More...

Detailed Description

Macro Definition Documentation

#define SBM_ENABLE_ARROW   0xF0E7

Enable or disable the arrow of the scrollbar.

An application sends a SBM_ENABLE_ARROW message to enable or disable the arrow button of the scrollbar.

SBM_ENABLE_ARROW
int which = SB_ARROW_LTUP;
BOOL is_active;

wParam = (WPARAM)which;
lParam = (LPARAM)is_active;
SendMessage (hwnd_scrollbar, SBM_ENABLE_ARROW, wParam, lParam);

Parameters

which	the part of the scrollbar to enable or disable, can be one of the follow value: SB_ARROW_LTUP the left or up arrow button. SB_ARROW_BTDN the right or down arrow button. SB_ARROW_BOTH all the arrow button.
is_active	TRUE for enable ,FALSE for disable.

Definition at line 314 of file scrollbar.h.

#define SBM_GETPOS   0xF0E2

Get the thumb pos of the scrollbar.

An application sends a SBM_GETPOS message to get the start position of the scrollbar thumb.

SBM_GETPOS
int pos;

pos = SendMessage (hwnd_scrollbar, SBM_GETPOS, 0, 0);

Returns

the postion of the thumb.

Definition at line 194 of file scrollbar.h.

#define SBM_GETRANGE   0xF0E4

Get the range of the scrollbar.

An application sends a SBM_GETRANGE message to get the move range of the scrollbar.

SBM_GETRANGE
int range;

range = SendMessage (hwnd_scrollbar, SBM_GETRANGE, 0, 0);

Returns

the range of the scrollbar.

Definition at line 236 of file scrollbar.h.

#define SBM_GETSCROLLINFO   0xF0E0

Get the scroll information of the scrollbar.

Definition at line 170 of file scrollbar.h.

#define SBM_SETPOS   0xF0E3

Set the thumb pos of the scrollbar.

An application sends a SBM_SETPOS message to set the start position of the scrollbar thumb.

SBM_SETPOS
int pos = 10;
BOOL redraw = TRUE;

wParam = (WPARAM)pos;
lParam = (LPARAM)redraw;
SendMessage (hwnd_scrollbar, SBM_SETPOS, wParam, lParam);

Parameters

pos	The new positon of the thumb to set.
redraw	Whether to repaint the control, TRUE for repaint, FALSE for not.

Returns

the old postion of the thumb.

Definition at line 218 of file scrollbar.h.

#define SBM_SETRANGE   0xF0E5

Set the range of the scrollbar.

An application sends a SBM_SETRANGE message to set the move range of the scrollbar.

SBM_SETRANGE
int min = 0;
int max = 100;

wParam = (WPARAM)min;
lParam = (LPARAM)max;
SendMessage (hwnd_scrollbar, SBM_SETRANGE, wParam, lParam);

Parameters

min	The minimum value of the range to set.
max	The maximum value of the range to set.

Note

this message will not redraw the control.

Definition at line 260 of file scrollbar.h.

#define SBM_SETRANGEREDRAW   0xF0E6

Set the range of the scrollbar.

An application sends a SBM_SETRANGEREDRAW message to set the move range of the scrollbar and redraw the control.

SBM_SETRANGEREDRAW
int min = 0;
int max = 100;

wParam = (WPARAM)min;
lParam = (LPARAM)max;
SendMessage (hwnd_scrollbar, SBM_SETRANGEREDRAW, wParam, lParam);

Parameters

min	The minimum value of the range to set.
max	The maximum value of the range to set.

Note

this message will redraw the control.

Definition at line 284 of file scrollbar.h.

#define SBM_SETSCROLLINFO   0xF0E1

Set the scroll information of the scrollbar.

Definition at line 176 of file scrollbar.h.