home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Visual Basic Source Code
/
Visual Basic Source Code.iso
/
vbsource
/
lb_msgs
/
lb_msgs.glo
< prev
next >
Wrap
Text File
|
1995-09-06
|
3KB
|
73 lines
' This somewhat inelegant and not very elaborate VB program
' demonstrates a number of SendMessage API commands which should
' help overcome the relatively limited set of properties/methods
' VB offers for simple list boxes. Some of the demos buttons use
' random numbers (e.g. to demonstrate finding listbox elements)
' to relieve you, the person playing with this, from having to
' type in bunches of search strings.
' There's no sample here for LB_DELETESTRING (I wouldn't want
' to ruin my list box contents now, would I?), but the code is:
' theList.SetFocus
' result& = SendMessage(GetFocus(), LB_DELETESTRING, ByVal itemIndex%, 0&)
' where itemIndex% is the index of the item to be removed.
' There are no samples for functions which can/should equally well
' be done using VB properties/methods, such as LB_GETCOUNT
' (= theList.ListCount).
' BTW: this demo marks the birth of JokeWare. If it's useful
' to you, I'd love to hear/read your favorite joke! Enjoy.
' Dave Th. Hutmacher [CIS 100012,74]
' Zurich, Switzerland
'------------------------------------------------------------------
DefInt A-Z
Declare Function GetFocus% Lib "User" ()
Declare Function SendMessage& Lib "USER" (ByVal hWnd%, ByVal wMsg%, ByVal wParm%, ByVal lparam As Any)
Global Const WM_USER = &H400
' Listbox messages
Global Const LB_ADDSTRING = (WM_USER + 1)
Global Const LB_INSERTSTRING = (WM_USER + 2)
Global Const LB_DELETESTRING = (WM_USER + 3)
Global Const LB_RESETCONTENT = (WM_USER + 5)
Global Const LB_SETSEL = (WM_USER + 6)
Global Const LB_SETCURSEL = (WM_USER + 7)
Global Const LB_GETSEL = (WM_USER + 8)
Global Const LB_GETCURSEL = (WM_USER + 9)
Global Const LB_GETTEXT = (WM_USER + 10)
Global Const LB_GETTEXTLEN = (WM_USER + 11)
Global Const LB_GETCOUNT = (WM_USER + 12)
Global Const LB_SELECTSTRING = (WM_USER + 13)
Global Const LB_DIR = (WM_USER + 14)
Global Const LB_GETTOPINDEX = (WM_USER + 15)
Global Const LB_FINDSTRING = (WM_USER + 16)
Global Const LB_GETSELCOUNT = (WM_USER + 17)
Global Const LB_GETSELITEMS = (WM_USER + 18)
Global Const LB_SETTABSTOPS = (WM_USER + 19)
Global Const LB_GETHORIZONTALEXTENT = (WM_USER + 20)
Global Const LB_SETHORIZONTALEXTENT = (WM_USER + 21)
Global Const LB_SETCOLUMNWIDTH = (WM_USER + 22)
Global Const LB_SETTOPINDEX = (WM_USER + 24)
Global Const LB_GETITEMRECT = (WM_USER + 25)
Global Const LB_GETITEMDATA = (WM_USER + 26)
Global Const LB_SETITEMDATA = (WM_USER + 27)
Global Const LB_SELITEMRANGE = (WM_USER + 28)
Global Const LB_MSGMAX = (WM_USER + 33)
Global Const DM_GETDEFID = WM_USER + 0
Global Const DM_SETDEFID = WM_USER + 1
' Listbox Return Values
Global Const LB_OKAY = 0
Global Const LB_ERR = (-1)
Global Const LB_ERRSPACE = (-2)