virtualstringtree and checkboxes

[RTollison 0]

NOTE: Found issue. No replies needed. Except for scolding....

 

I had a project that was working with the VST and checkboxes showing up. i had to move project to a new pc and get the virtual components installed. i can now compile project without errors but lost something along the way. i used this code to add the nodes with a check box:

function AddVSTObject(AVST: TCustomVirtualStringTree; ANode: PVirtualNode; AObject: TObject): PVirtualNode;
var
  Data: PClassRoomData;
begin
  Result:=AVST.AddChild(ANode);
  Result.CheckType := ctTriStateCheckBox;
  AVST.ValidateNode(Result,False);
  Data:=AVST.GetNodeData(Result);
  Data^.FObject:=AObject;
end;

It will display the tree with all the info but the checkboxes do not display. i checked the properties of the vst and found nothing related to checkboxes. so any ideas as to what i could check to get the checkboxes to show up?

Edited December 13, 2024 by RTollison

[RTollison 0]

old program shows the checkbox but new compiled program with gui changes not related to tree does not show checkbox

 

 

[RTollison 0]

well crap, now i find the miscoptions and checksupport. sorry for post and thanks

[David Hoyle 68]

You should be using the AVST.CheckType[ANode] :=  ctTriStateCheckBox property rather than alter the node structure directly otherwise the VTV control cannot perform related functions associated with check boxes.