Can't control the game and make ShaderGlass full screen?

[parabolee]

So I am using ShaderGlass to play BlazBlu CT, so I mirror the window then make ShaderGlass full screen. Which would be perfect but my controller doesn;t control the game unless I click back on the game window, which of course makes Shader Glass small and not the focus.

How do I get around this? I can't find a way to use ShaderGlass and actually control the game.

[smbhax]

With the Apple II emulator microm8, I find that once I've got the emu showing in ShaderGlass and have full-screened ShaderGlass with Ctrl+Shift+G, if I then Alt-Tab to the emu, it actually stays on ShaderGlass' display, but gives me keyboard control of the emu--so Alt-Tabbing works for me in that case.