CODEWITHSUNDEEP
windowsc++buildershutdown
Ron D
Ron D

Reputation: 649

Pause Windows shutdown

How can I pause shutdown long enough for my app? I found an example, but it is for Delphi - I can't translate it to C++.

Upvotes: 1

Views: 1065

Answers (1)

Remy Lebeau
Remy Lebeau

Reputation: 596111

Here is a C++Builder VCL translation of the Delphi code:

class TForm1 : public TForm
{
  ..
protected:
    void __fastcall WMQueryEndSession(TWMQueryEndSession &Message);
    ..
public:
    ..
    BEGIN_MESSAGE_MAP
        VCL_MESSAGE_HANDLER(WM_QUERYENDSESSION, TWMQueryEndSession, WMQueryEndSession)
    END_MESSAGE_MAP(TForm)
};

...

void __fastcall TForm1::WMQueryEndSession(TWMQueryEndSession &Message)
{
    Message.Result = TRUE;
    if ((Message.Unused & ENDSESSION_CRITICAL) == 0)
    {
        ShutdownBlockReasonCreate(Handle, L"please wait while muting...");

        Sleep(45000); // do your work here

        ShutdownBlockReasonDestroy(Handle);
    }
}

Upvotes: 4

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