Date: 02-16-2022
Return to Index
created by gbSnippets
'Primary Code:
'DDT method for textbox control
Control Get Text hDlg, %IDC_TextBox To temp$
'API method for any edit control
TextLength = SendMessage(hEdit, %WM_GetTextLength, 0, 0) + 1 '+1 to cover terminating Chr$(0)
CharReceived = SendMessage(hEdit, %WM_GetText, TextLength, StrPTR(temp$) 'temp$ will not have terminating Chr$(0)
'When using API with Edit Controls, remember that line numbers and char positions
'are zero-based. Also, character positions include $crlf at end of previous lines.
'Compilable Example: (Jose Includes)
#Compiler PBWin 9, PBWin 10
#Compile Exe
#Dim All
%Unicode=1
#Include "Win32API.inc"
Global hDlg, hEdit As Dword
%IDC_TextBox = 500
%IDC_ButtonDDT = 501
%IDC_ButtonAPI = 502
Function PBMain() As Long
Local style&
style& = %WS_Child Or %WS_Visible Or %ES_MultiLine Or %WS_VScroll Or %ES_AutoHScroll _
Or %WS_HScroll Or %ES_AutoVScroll Or %ES_WantReturn Or %ES_NoHideSel Or %WS_TabStop
Dialog New Pixels, 0, "Get All Text",300,300,200,150, %WS_OverlappedWindow To hDlg
Control Add Button, hDlg, %IDC_ButtonDDT, "Get Text (DDT)",20,10,160,20
Control Add Button, hDlg, %IDC_ButtonAPI, "Get Text (API)",20,40,160,20
Control Add TextBox, hDlg, %IDC_TextBox, "Hello World"+$crlf+"Waiting ..."+$CrLf+"Goodbye World",20,70,160,80, style&, %WS_Ex_ClientEdge
Control Handle hDlg, %IDC_TextBox To hEdit
Dialog Show Modal hDlg Call DlgProc
End Function
CallBack Function DlgProc() As Long
Local temp$, TextLength, CharsReceived As Long
Select Case Cb.Msg
Case %WM_Command
Select Case Cb.Ctl
Case %IDC_ButtonDDT
'DDT method
Control Get Text hDlg, %IDC_TextBox To temp$
? temp$
Case %IDC_ButtonAPI
'API method
TextLength = SendMessage(hEdit, %WM_GetTextLength, 0, 0)+1 '+1 to cover terminating Chr$(0)
temp$ = Space$(TextLength)
CharsReceived = SendMessage(hEdit, %WM_GetText, TextLength, StrPtr(temp$))
? temp$
End Select
End Select
End Function
'gbs_00546
'Date: 03-10-2012
http://www.garybeene.com/sw/gbsnippets.htm