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Close MiniBrowser correctly when the user logs off

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This commit is contained in:
Salvador Díaz Fau 2021-06-14 12:58:46 +02:00
parent b5d3daf8bc
commit 3228738e3a
2 changed files with 14 additions and 1 deletions
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13
demos/Delphi_VCL/MiniBrowser/uMiniBrowser.pas
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@ -256,6 +256,7 @@ type
procedure WMMoving(var aMessage : TMessage); message WM_MOVING;
procedure WMEnterMenuLoop(var aMessage: TMessage); message WM_ENTERMENULOOP;
procedure WMExitMenuLoop(var aMessage: TMessage); message WM_EXITMENULOOP;
procedure WMQueryEndSession(var aMessage: TWMQueryEndSession); message WM_QUERYENDSESSION;
public
procedure ShowStatusText(const aText : string);
@ -1566,6 +1567,18 @@ begin
if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := False;
end;
procedure TMiniBrowserFrm.WMQueryEndSession(var aMessage: TWMQueryEndSession);
begin
// We return False (0) to close the browser correctly while we can.
// This is not what Microsoft recommends doing when an application receives
// WM_QUERYENDSESSION but at least we avoid TApplication calling HALT when
// it receives WM_ENDSESSION.
// The CEF subprocesses may receive WM_QUERYENDSESSION and WM_ENDSESSION
// before the main process and they may crash before closing the main form.
aMessage.Result := 0;
PostMessage(Handle, WM_CLOSE, 0, 0);
end;
procedure TMiniBrowserFrm.Deczoom1Click(Sender: TObject);
begin
Chromium1.DecZoomStep;

2
update_CEF4Delphi.json
View File

@ -2,7 +2,7 @@
"UpdateLazPackages" : [
{
"ForceNotify" : true,
"InternalVersion" : 302,
"InternalVersion" : 303,
"Name" : "cef4delphi_lazarus.lpk",
"Version" : "91.1.16.0"
}