diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gui/kernel/qscreen.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/gui/kernel/qscreen.cpp b/src/gui/kernel/qscreen.cpp index 7d83cebd2b..682e42ad4c 100644 --- a/src/gui/kernel/qscreen.cpp +++ b/src/gui/kernel/qscreen.cpp @@ -61,6 +61,17 @@ public: \class QScreen \brief The QScreen class is used to query screen properties. + A note on logical vs physical dots per inch: physical DPI is based on the + actual physical pixel sizes when available, and is useful for print preview + and other cases where it's desirable to know the exact physical dimensions + of screen displayed contents. + + Logical dots per inch are used to convert font and user interface elements + from point sizes to pixel sizes, and might be different from the physical + dots per inch. The logical dots per inch are sometimes user-settable in the + desktop environment's settings panel, to let the user globally control UI + and font sizes in different applications. + \inmodule QtGui */ |