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Home » U++ Library support » U++ Widgets - General questions or Mixed problems » TrayIcon Windows Shutdown solution
TrayIcon Windows Shutdown solution [message #45124] Mon, 07 September 2015 13:35 Go to next message
Typhoor is currently offline  Typhoor
Messages: 14
Registered: October 2012
Location: Erlangen, Germany
Promising Member
Hi there,

I had problems with TrayIcon programs under Windows during Shutdown when I did not have a TopWindow.

Solution was to add WM_QUERYENDSESSION listerner to TaryIcons derived class WindowProc.

I had two solution either to subclass (a) or add to TrayIcon::WindowProc (b)

LRESULT TrayIconDerived::WindowProc( UINT message, WPARAM wParam, LPARAM lParam ) {
	if ( message == WM_QUERYENDSESSION ) {
		ShutDown();
		return true;
	}
	return TrayIcon::WindowProc(message, wParam, lParam);
}


For both I needed to change repository code:
Could we either
a) have the TrayIcon::WindowProc make "protected" in header for subclassing or
b) add the handler to the TrayIcon::WindowProc itself?

Thanx for a thought!
Ralph
Re: TrayIcon Windows Shutdown solution [message #45318 is a reply to message #45124] Thu, 29 October 2015 18:51 Go to previous messageGo to next message
mirek is currently offline  mirek
Messages: 13986
Registered: November 2005
Ultimate Member
Right on spot. Applied. Thanks.

[Updated on: Thu, 29 October 2015 18:51]

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icon7.gif  Re: TrayIcon Windows Shutdown solution [message #45327 is a reply to message #45318] Fri, 30 October 2015 12:26 Go to previous message
Typhoor is currently offline  Typhoor
Messages: 14
Registered: October 2012
Location: Erlangen, Germany
Promising Member
Thanx Mirek, works well...
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