Fullscreen not possible

[l0master]

Since source window grabs everything including output window, fullscreen mode (or a larger window mode) becomes useless.

[PirateHearts]

In multimonitor configurations, the source can be kept on a second display, but yeah, in the general case, it’s not useful. Ideally we’d want to sample from the source window directly regardless of where it is or whether it’s occluded instead of sampling from the desktop at the source window’s coordinates, but I haven’t found a way to do that yet.

[l0master]

Tried dual-display configuration. While windowed mode works just fine (my parameters are: source window = 640x400, destination window 1920x1080, also tried to nullify every function save for colour bleeding and persistance) https://imgur.com/a/evXCl
Then i tried changing Params.Windowed to "false". Launches like a charm grabs the source, goes fullscreen. After split-second the screen goes black (source window now grabbing destination window). Alt+tab to move source window to my second display, and there it goes - destination window goes completely white, and no way to make it go back fullscreen after alt+tabbing. https://imgur.com/a/KsFwK

I'll try making source window open on a second display at launching. But perhaps you could give me some hint at how to make fullscreen recoverable from alt+tab?

[l0master]

Changed SrcRect.left to 1990. Now source window opens on a second display, allowing destination window to show unobstructed fullscreen picture https://i.imgur.com/586LcNY.jpg
Needless to say - that's as far as it goes. Clicking anywhere outside destination window, or alt+tabbing ruins fullscreen mode.

[dayeggpi]

following up on that issue, did you manage to find a way to get fullscreen on single display ?
ideally something that would capture the source window and display the destination window on top of it with the effect, allowing intereaction (on the source) to be reflected on the destination window. (with a shortcut key to exit this mode).