UpDown Control

up-down message'

(UDM_SETRANGE=(&H400+101

(UDM_SETPOS=(&H400+103
(UDM_SETBUDDY=(&H400+105
up-down notification  use in wm_notify'
(UDN_FIRST=(-721
(UDN_LAST=(-740
(UDN_DELTAPOS=(UDN_FIRST-1
up-down styles'
UDS_ALIGNRIGHT=&H4
UDS_ALIGNLEFT=&H8
UDS_AUTOBUDDY=&H10
UDS_ARROWKEYS=&H20
UDS_HORZ=&H40
UDS_NOTHOUSANDS=&H80
UDS_HOTTRACK=&H100

msctls_trackbar32	Slider
msctls_updown32	Spinner
msctls_statusbar32	StatusBar

(CreateControls(HWND hwnd

آپ داون جز کامان کنترل هست و باید فراخوان شود .

Dim INITCOMMONCONTROLSEX As icex icex.dwSize= sizeof(INITCOMMONCONTROLSEX) 

icex.dwICC=ICC_UPDOWN_CLASS

using-common-controls-in-a-dialog-box

 InitCommonControlsEx &icex

hUpDown= CreateWindowW(UPDOWN_CLASSW, NULL, WS_CHILD | WS_VISIBLE | UDS_SETBUDDYINT | UDS_ALIGNRIGHT, 0, 0, 0, 0, hwnd, (HMENU) ID_UPDOWN, NULL, NULL)

'if create Edit

SendMessageW(hUpDown, UDM_SETBUDDY, (WPARAM)hEdit, 0) SendMessageW(hUpDown, UDM_SETRANGE, 0, MAKELPARAM(UD_MAX_POS, UD_MIN_POS)); SendMessageW(hUpDown, UDM_SETPOS32, 0, 0)

#define UD_MAX_POS 30 

#define UD_MIN_POS 0

LPNMUPDOWN lpnmud

case WM_NOTIFY

code=((LPNMHDR) lParam)->code

if (code == UDN_DELTAPOS)

lpnmud = (NMUPDOWN *) lParam

int value = lpnmud->iPos + lpnmud->iDelta

if (value < UD_MIN_POS)

value = UD_MIN_POS

if (value > UD_MAX_POS)

value = UD_MAX_POS

const int asize = 4

wchar_t buf[asize]

size_t cbDest = asize * sizeof(wchar_t) StringCbPrintfW(buf, cbDest, L"%d", value)

(SetWindowTextW(hStatic, buf

break

UDM_SETBUDDY

Sets the buddy window for an up-down control.

Parameters

wParam

Handle to the new buddy window.

lParam

Must be zero.

Return value

The return value is the handle to the previous buddy window.

NM_UPDOWN

Type      LPNMUPDOWN
hdr As NMHDR
iPos As Long
iDelta As Long
End Type


iPos

Type: int

Signed integer value that represents the up-down control's current position.

iDelta

Type: int

Signed integer value that represents the proposed change in the up-down control's position.

Type NMHDR 'Contains information about a notification message
hwndFrom As Long
idFrom As Long
code As Long
End Type


idFrom

Type: UINT_PTR

An identifier of the control sending the message.

code

Type: UINT

A notification code. This member can be one of the common notification codes (see Notifications under General Control Reference), or it can be a control-specific notification code.