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Version 5 (modified by Antoine Martin, 5 years ago) (diff)

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DPI Data


Data collected to try to help understand Operating System DPI settings.

MS Windows

Monitor specific data (also depends on graphics card, cable, ..).

Graphics Card Monitors Cables Resolution Vertical Refresh
?Dell P2815Q DP? 3820x2160 29
?HP ZR2740w IPS DP? 2560x1440 59
?Dell P2815Q + HP ZR2740w IPS DP? + HDMI 3820x2160 + 1280x720 29

Unless stated otherwise, the same monitor settings were used for collecting the data.


Data collected using Native_gui.exe.

Text Size dpi cursor_size window_frame.caption window_frame.frame window_frame.menu-bar window_frame.minimum window_frame.normal window_frame.offset
Smallest 96 32 23 8, 8, 31, 8 20 140, 39 8, 8 8, 31
Second smallest 120 32 29 9, 9, 38, 9 25 178, 47 9, 9 9, 38
Third smallest 144 48 34 11, 11, 45, 11 30 210, 56 11, 11 11, 45
Fourth smallest 192 64 45 13, 13, 58, 13 39 274, 71 13, 13 13, 58
Fifth smallest 240 64 56 16, 16, 72, 16 49 340, 88 16, 16 16, 72

Workarea information (with the taskbar shown at the bottom of the screen):

  • Dell P2815Q at 3840x2160:
Text Size Total Workarea
Smallest 0, 0, 3840, 2120
Second mallest 0, 0, 3840, 2112
Third Smallest 0, 0, 3840, 2104
Fourth Smallest 0, 0, 3840, 2088
Fifth Smallest 0, 0, 3840, 2072
  • HP ZR2740w IPS at 2560x1440:
Text Size Total Workarea
Smallest 0, 0, 2560, 1400
Second mallest 0, 0, 2560, 1392
Third Smallest 0, 0, 2560, 1384
Fourth Smallest 0, 0, 2560, 1368
Fifth Smallest n/a
  • Dell P2815Q at 3820x2160 & HP ZR2740x IPS at 1280x720:
Text Size Total Workarea Workarea 1 Workarea 2
Smallest 0, 0, 5120, 2120 0, 0, 3840, 2120 0, 0, 1280, 680
Second mallest 0, 0, 5440, 2112 0, 0, 3840, 2112 0, 0, 1600, 840
Third Smallest 0, 0, 5760, 2104 0, 0, 3840, 2104 0, 0, 1920, 996
Fourth Smallest 0, 0, 6400, 2088 0, 0, 3840, 2088 0, 0, 2560, 1440
Fifth Smallest 0, 0, 7040, 2072 0, 0, 3840, 2072 0, 0, 3200, 1800

From this we can infer that the size of the taskbar (which reduces the available workarea) does not change with the monitor resolution, only the text size (but it may be affected by scaling, no data available to confirm):

Text Size Taskbar Size
Smallest 40
Second Smallest 48
Third Smallest 56
Fourth Smallest 72
Fifth Smallest 88