I want to center mouse cursor. Here how I do it.
But here is a problem - when I change active window with alt + tab, cursor still in the center all the time. Can I check somehow that game window is focusable?
SetMousePosition indeed controls the OS cursor, sometimes a bit aggressively.
You can check if UE is running in the foreground and if so SetMousePosition:
UGameViewportClient* GameViewportClient = GEngine->GetWorldFromContextObjectChecked(LocalPlayerContext.GetPlayerController())->GetGameViewport();
if (!GameViewportClient->Viewport || !GameViewportClient->Viewport->IsForegroundWindow()) {
return;
}
else {
// Set mouse position
///
}
Not sure if you can do that with blueprint.
Thanks, but I am looking for a blueprint solution. It is strane that so basic feature is now working by default
You could test if the axis value of the mouse movement is > or < than 0 when the window is out of focus, I guess it should not be. Then you could only center the cursor using SetMousePosition if that axis value is < 0 or > 0.
But if I will switch game window with alt + tab, then it will affect other programs.
I tries to change some project settings, but it still don’t work as expected
Are the axis values for mouse X and Mouse Y equal to zero while alt tabbing to another program?
Yes. It change value from -3 to 3 when I move cursor but then became 0
this free plugin has a few nodes for setting mouse position in blueprints.
Strange, it never goes to the false branch. Maybe problem is somewhere in another place because now it says that X, Y is always 0, 0, even when I press button and nohing is happens.
Maybe problem is somewhere in Break Hit Result function
X, Y should not be exact 0 while you move the mouse, but note that this value is measured per frame so if you don’t actively move the mouse around you get 0 readings. It should read 0 when the window is out of focus, which is how you should determine if you want to SetMousePosition or not if there is no BP alternative of measuring so.
