alt+tab crashing

[drarem]

When i create a FPS template, open up the 01 FPS controller sample, then change it to fullscreen and run it. I hit Alt-Tab and it crashes. What is going on, or is there a work around?

 

I'm thinking anywhere from somehow hiding the title bar and container, to maybe hooking the alt-tab in a key event, changing it to non full-screen so it can alt-tab safely.

 

Help please?

 

thanks.

[reepblue]

Windows 10 right? Because with Win8.1, I did not have this issue. It also happens when you call window->minimize in C++, but it's more noticeable when you alt-tab from fullscreen mode even if you pause the world like this:

 

 // Check to see if the window is active.

// Pause the game if it's not.

if (window->Active())

{

// Update the world.

world->Update();

}

[drarem]

No, it's windows 8.1 nvidia gtx 760 12Gb i7 4790k

 

Is there a call in lua to use the windowed full screen mode or a setting?

[reepblue]

In the default script, you can use -fullscreen launch option to enable fullscreen. But yeah, I feel that the issue is when the window is minimized as alt-tabbing in windowed mode does not crash, but alt-tabbing from fullscreen does, which Windows auto minimize the window.

[Josh]

This is high-priority. I suspect it has to do with rendering while the window is minimized. Will fix tomorrow.

[Josh]

Okay, the quick fix is to do check to see if the window is minimized and skip rendering if it is:

	--Render the world
if window:Minimized()==false then
	world:Render()
end

 

You should also add this check in the FPS player script so the game doesn't take control of the mouse when its minimized:

	--Mouse look
self.currentMousePos = window:GetMousePosition()
if window:Minimized()==false then
	window:SetMousePosition(Math:Round(context:GetWidth()/2), Math:Round(context:GetHeight()/2))
end

 

I will add a built-in check in the engine as well.

[reepblue]

You can also just prevent the world from updating when the window is not active or minimized to fix the mouse bug, but I'm glad to see that this sort of thing is getting built in.

[Josh]

I would also consider pausing the time when the window minimizes, but I am not sure if that's typical.

[reepblue]

Doing so will prevent additional code in scripts such as a check for preventing the mouse locking to the center when minimized Also, I'd make sure it flushes any keys and mouse clicks before the world gets unpaused.

[beo6]

i have seen many games that just pause when minimized. Even when only out of focus and in background some of them pause.