Date: 02-16-2022
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created by gbSnippets
'Primary Code:
'DDT method for textbox control
Control Send hDlg, %IDC_TextBox, %EM_SetSel, 0, -1
'API method for any edit control
SendMessage hEdit, %EM_SetSel, 0, -1
'When using API with Edit Controls, remember that line numbers and char positions
'are zero-based. Also, character positions include $crlf at end of previous lines.
'Compilable Example: (Jose Includes)
#Compiler PBWin 9, PBWin 10
#Compile Exe
#Dim All
%Unicode=1
#Include "Win32API.inc"
Global hDlg, hEdit As Dword
%IDC_TextBox = 500
%IDC_ButtonDDT = 501
%IDC_ButtonAPI = 502
Function PBMain() As Long
Local style&
style& = %WS_Child Or %WS_Visible Or %ES_MultiLine Or %WS_VScroll Or %ES_AutoHScroll _
Or %WS_HScroll Or %ES_AutoVScroll Or %ES_WantReturn Or %ES_NoHideSel Or %WS_TabStop
Dialog New Pixels, 0, "Select Lines M-N",300,300,200,150, %WS_OverlappedWindow To hDlg
Control Add Button, hDlg, %IDC_ButtonDDT, "Select Lines 1-2 (DDT)",20,10,160,20
Control Add Button, hDlg, %IDC_ButtonAPI, "Select Lines 1-2 (API)",20,40,160,20
Control Add TextBox, hDlg, %IDC_TextBox, "Hello World"+$crlf+"Waiting ..."+$CrLf+"Goodbye World",20,70,160,80, style&, %WS_Ex_ClientEdge
Control Handle hDlg, %IDC_TextBox To hEdit
Dialog Show Modal hDlg Call DlgProc
End Function
CallBack Function DlgProc() As Long
Local i,StartPos, EndPos, LineLength, LineNumberM, LineNumberN As Long, temp$, tmp$
Select Case Cb.Msg
Case %WM_Command
Select Case Cb.Ctl
Case %IDC_ButtonDDT
'DDT method
LineNumberM = 1
LineNumberN = 2
Control Get Text hDlg, %IDC_TextBox to temp$
For i = 1 to LineNumberN
tmp$ = Parse$(temp$, $crlf, i)
EndPos = EndPos + Len(tmp$)
If i = LineNumberM Then StartPos = EndPos - Len(tmp$)
Next i
EndPos = EndPos + (LineNumberN-1)*2 '$crlf
Control Send hDlg, %IDC_TextBox, %EM_SetSel, StartPos, EndPos 'select character range
Case %IDC_ButtonAPI
'API method
LineNumberM = 0
LineNumberN = 1
StartPos = SendMessage(hEdit, %EM_LineIndex, LineNumberM, 0) '1st char of line M
EndPos = SendMessage(hEdit, %EM_LineIndex, LineNumberN, 0) '1st char of line N
LineLength = SendMessage(hEdit, %EM_LineLength, EndPos, 0) 'length of line containing EndPos
SendMessage hEdit, %EM_SetSel, StartPos, EndPos + LineLength 'select character range
End Select
End Select
End Function
'gbs_01173
'Date: 03-10-2012
http://www.garybeene.com/sw/gbsnippets.htm