Date: 02-16-2022
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created by gbSnippets
'This code shows how to get the text of a specified line range. There is
'no GetTextRange() API, so workarounds are required.
'Primary Code:
'DDT method for textbox control. There is no DDT statement which will identify the
'caret position, so the %EM_GetSel message is required.
LineNumber = 1
Control Get Text hDlg, %IDC_TextBox To temp$
temp$ = Parse$(temp$,$crlf, LineNumber)
'API method for any edit control
LineNumber = SendMessage(hEdit, %EM_LineFromChar, -1, 0) 'current line#, zero-based
SendMessage(hEdit, %EM_GetLine, LineNumber, StrPTR(temp$)) 'get text, specified line
'When using API with Edit Controls, remember that line numbers and char positions
'are zero-based. Also, character positions include $crlf at end of previous lines.
'Compilable Example: (Jose Includes)
#Compiler PBWin 9, PBWin 10
#Compile Exe
#Dim All
%Unicode=1
#Include "Win32API.inc"
Global hDlg, hEdit As Dword
%IDC_TextBox = 500
%IDC_ButtonDDT = 501
%IDC_ButtonAPI = 502
Function PBMain() As Long
Local style&
style& = %WS_Child Or %WS_Visible Or %ES_MultiLine Or %WS_VScroll Or %ES_AutoHScroll _
Or %WS_HScroll Or %ES_AutoVScroll Or %ES_WantReturn Or %ES_NoHideSel Or %WS_TabStop
Dialog New Pixels, 0, "Replace Chars M-N",300,300,200,150, %WS_OverlappedWindow To hDlg
Control Add Button, hDlg, %IDC_ButtonDDT, "Replace Chars M-N (DDT)",20,10,160,20
Control Add Button, hDlg, %IDC_ButtonAPI, "Replace Chars M-N (API)",20,40,160,20
Control Add TextBox, hDlg, %IDC_TextBox, "Hello World"+$crlf+"Waiting ..."+$CrLf+"Goodbye World",20,70,160,80, style&, %WS_Ex_ClientEdge
Control Handle hDlg, %IDC_TextBox To hEdit
Dialog Show Modal hDlg Call DlgProc
End Function
CallBack Function DlgProc() As Long
Local StartPos, EndPos As Long, ReplacementText$
Select Case Cb.Msg
Case %WM_Command
Select Case Cb.Ctl
Case %IDC_ButtonDDT
'DDT method
StartPos = 10 'starting char, one-based
EndPos = 20 'ending char, one-based
Control Set Text hDlg, %IDC_Textbox, Left$(temp$,StartPos-1) + ReplacementText$ + Mid$(temp$,EndPos+1)
Case %IDC_ButtonAPI
'API method
ReplacementText$ = "dog star"
StartPos = 9 'starting char, zero-based
EndPos = 19 'ending char, zero-based
SendMessage hEdit, %EM_SetSel, StartPos, EndPos 'select character range
SendMessage(hEdit, %EM_ReplaceSel, %True, StrPTR(ReplacementText$)) 'only replace if selection exists.
End Select
End Select
End Function
'gbs_01108
'Date: 03-10-2012
http://www.garybeene.com/sw/gbsnippets.htm