Date: 02-16-2022
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created by gbSnippets
'PowerBASIC TreeView statements are all that is required.
'Only the selected node is collapsed/expanded - not sub-nodes!
'Primary Code:
TreeView Set Expanded hDlg, %IDC_TreeView, hNode, %True 'expand a node
TreeView Set Expanded hDlg, %IDC_TreeView, hNode, %False 'collapse a node
'Compilable Example: (Jose Includes)
#Compiler PBWin 9, PBWin 10
#Compile EXE
#Dim All
%Unicode=1
#Include "Win32API.inc"
%IDC_TreeView = 100 : %IDC_ButtonE = 200 : %IDC_ButtonC = 201
Global hDlg As Dword
Function PBMain() As Long
Local hItem As Dword, hTemp As Dword, hTemp2 As Dword, hTemp3 As Dword
Dialog New Pixels, 0, "TreeView",200,200,155,300, %WS_SysMenu, 0 To hDlg
Control Add TreeView, hDlg, %IDC_TreeView, "", 10,10,130,200
Control Add Button, hDlg, %IDC_ButtonE,"Expand", 25,220,95,20
Control Add Button, hDlg, %IDC_ButtonC,"Collapse", 25,250,95,20
TreeView Insert Item hDlg, %IDC_TreeView, 0, %TVI_Last, 0,0,"Root" To hItem
TreeView Insert Item hDlg, %IDC_TreeView, hItem, %TVI_Last, 0,0,"Mother" To hTemp
TreeView Insert Item hDlg, %IDC_TreeView, hTemp, %TVI_Last, 0,0,"Dan" To hTemp2
TreeView Insert Item hDlg, %IDC_TreeView, hTemp, %TVI_Last, 0,0,"Bob" To hTemp3
TreeView Set Expanded hDlg, %IDC_TreeView, hTemp, %True
TreeView Insert Item hDlg, %IDC_TreeView, hTemp3, %TVI_Last, 0,0,"Foot" To hTemp2
TreeView Insert Item hDlg, %IDC_TreeView, hTemp3, %TVI_Last, 0,0,"Arm" To hTemp2
TreeView Set Expanded hDlg, %IDC_TreeView, hTemp3, %True
TreeView Insert Item hDlg, %IDC_TreeView, hItem, %TVI_Last, 0,0,"Father" To hTemp
TreeView Insert Item hDlg, %IDC_TreeView, hTemp, %TVI_Last, 0,0,"Helen" To hTemp2
TreeView Insert Item hDlg, %IDC_TreeView, hTemp, %TVI_Last, 0,0,"Any" To hTemp3
TreeView Set Expanded hDlg, %IDC_TreeView, hTemp, %True
TreeView Insert Item hDlg, %IDC_TreeView, hTemp3, %TVI_Last, 0,0,"Leg" To hTemp2
TreeView Insert Item hDlg, %IDC_TreeView, hTemp3, %TVI_Last, 0,0,"Finger" To hTemp2
TreeView Set Expanded hDlg, %IDC_TreeView, hTemp3, %True
TreeView Set Expanded hDlg, %IDC_TreeView, hItem, %True
Dialog Show Modal hDlg Call DlgProc
End Function
CallBack Function DlgProc() As Long
Local hNode As Dword
If CB.Msg = %WM_Command AND CB.Ctl = %IDC_ButtonE Then
TreeView Get Select hDlg, %IDC_TreeView To hNode
TreeView Set Expanded hDlg, %IDC_TreeView, hNode, %True 'expand
End If
If CB.Msg = %WM_Command AND CB.Ctl = %IDC_ButtonC Then
TreeView Get Select hDlg, %IDC_TreeView To hNode
TreeView Set Expanded hDlg, %IDC_TreeView, hNode, %False 'collapse
End If
End Function
'gbs_00267
'Date: 03-10-2012
http://www.garybeene.com/sw/gbsnippets.htm