diff options
| -rw-r--r-- | src/yuzu/main.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp index c278d8dab..62dfc526a 100644 --- a/src/yuzu/main.cpp +++ b/src/yuzu/main.cpp @@ -3167,8 +3167,20 @@ void GMainWindow::ShowFullscreen() { window->hide(); window->setWindowFlags(window->windowFlags() | Qt::FramelessWindowHint); const auto screen_geometry = GuessCurrentScreen(window)->geometry(); + // NB: On Windows, a borderless window will be treated the same as exclusive fullscreen + // when the window geometry matches the physical dimensions of the screen. + // However, with High DPI scaling, when the devicePixelRatioF() is > 1, the borderless + // window apparently is not treated as exclusive fullscreen and functions correctly. + // One can verify and replicate this behavior by using a high resolution (4K) display, + // and switching between 100% and 200% scaling in Windows' display settings. + // At 100%, without the addition of 1, it is treated as exclusive fullscreen. + // At 200%, with or without the addition of 1, it is treated as borderless windowed. + // Therefore, we can use (read: abuse) this difference in behavior to fix this issue for + // those with higher resolution displays when the Qt scaling ratio is > 1. + // Should this behavior be changed in the future, please revisit this workaround. + const bool must_add_one = devicePixelRatioF() == 1.0f; window->setGeometry(screen_geometry.x(), screen_geometry.y(), screen_geometry.width(), - screen_geometry.height() + 1); + screen_geometry.height() + (must_add_one ? 1 : 0)); window->raise(); window->showNormal(); }; |