[Bug 15833] New: TreeView control don't save item's state
wine-bugs at winehq.org
wine-bugs at winehq.org
Wed Oct 29 06:31:07 CDT 2008
http://bugs.winehq.org/show_bug.cgi?id=15833
Summary: TreeView control don't save item's state
Product: Wine
Version: 1.1.7
Platform: PC
OS/Version: Linux
Status: UNCONFIRMED
Severity: enhancement
Priority: P1
Component: comctl32
AssignedTo: wine-bugs at winehq.org
ReportedBy: iwarmouse at gmail.com
Created an attachment (id=16963)
--> (http://bugs.winehq.org/attachment.cgi?id=16963)
patch that i offer to fix this bug
Hi.
BUG:
TreeView sends TVS_GETDISPINFO notifycation. Main application catch it and
change "mask","state" and "stateMask" in a TVITEM structure. After returning
from message handler, item's state don't changed. TreeView don't save new item
state in function TREEVIEW_UpdateDispInfo after calling
TREEVIEW_SendRealNotify.
This is Delphi code sample, TMyTreeView inherits from TCustomTreeView
//-----------------------------------------------------------------
procedure TMyTreeView.CNNotify(var Message: TWMNotify);
var
hNode: Integer;
begin
with Message do
case NMHdr^.code of
TVN_GETDISPINFO:
with PTVDispInfo(NMHdr)^ do begin
hNode := item.hItem;
with PTVDispInfo(NMHdr)^.item do begin
mask := mask or TVIF_STATE or TVIF_HANDLE;
stateMask := stateMask or TVIS_STATEIMAGEMASK;
state := (state and not TVIS_STATEIMAGEMASK)
or UINT(IndexToStateImageMask(MyGetItemImageIndex(hNode)));
end;
end;
end;
inherited;
end;
//-----------------------------------------------------------------
This's link to MSDN page, where described how it must work:
http://msdn.microsoft.com/en-us/library/bb773456(VS.85).aspx
I'm offer this patch (attached) to fix this bug.
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