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GTK3: Fixed handling of scroll event.

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Scrolling was not correctly handled due to error in the logic of
handling the scrolling event.

This fix is related to #21067.
This commit is contained in:
Abou Al Montacir 2024-02-10 19:51:58 +01:00
parent ad0f0b2083
commit aabe67dfd9
1 changed files with 3 additions and 1 deletions
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4
lcl/interfaces/gtk3/gtk3widgets.pas
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@ -5104,6 +5104,7 @@ var
Msg: TLMVScroll;
MaxValue: gdouble;
Widget: PGtkWidget;
StateFlags: TGtkStateFlags;
begin
Result := False;
@ -5141,7 +5142,8 @@ begin
if Msg.Scrollcode = SB_THUMBTRACK then
begin
if Widget^.get_state_flags = GTK_STATE_FLAG_NORMAL then
StateFlags := Widget^.get_state_flags;
if not (GTK_STATE_FLAG_ACTIVE in StateFlags) then
begin
Msg.ScrollCode := SB_THUMBPOSITION;
DeliverMessage(AData.LCLObject, Msg);