Win10 official version features a new DPI mechanism that makes the screen display clearer. This is because Win10 uses DPI scaling technology to create a new typesetting of fonts to improve Win10 resolution. This article will introduce how to set up Win10's latest DPI scaling technology.
Traditional DPI Scaling Mechanism
The traditional DPI scaling mechanism is used by Windows XP. Developers check for potential problems after font scaling.
Advantages: Clear fonts
Disadvantages: typographical confusion (UI element text box overlap, table text overflow, interface beyond the edge of the screen)
Win10 latest DPI zoom mechanism: DPI virtualization
Win10 latest The DPI scaling mechanism is used by Windows Vista/Win7/Win8/Win8.1. If the DPI scaling does not exceed 125%, continue to use the traditional DPI scaling mechanism, and then turn it on after the new mode is turned on. It should be noted that the 125% zoom ratio does not cause serious interface errors in most cases, and the font is clear after scaling.
Specifically, for reporting programs that support DPI adaptation, the system will disable DPI scaling.
For programs that do not report support for DPI adaptation, the system will use the following mechanism:
If the scaling is 100% of the integer multiple, the system uses point-to-multipoint scaling. When choosing a zoom ratio of 200% /300% /. . ., 1 point in the original interface corresponds to 4 points /9 points. . . . .
If the zoom ratio is not 100% of the integer multiple, the system first submits the virtual resolution to the application, and then the system renders the software interface off-screen and zooms in to the DPI level selected by the user.
With 1920*1080 resolution, the scaling ratio is 150%. The system first submits the current resolution to the application at 1280x720, obtains the off-screen rendering interface, and then uses the conventional image interpolation algorithm to zoom in. Need to be reminded that interpolation will inevitably lead to a series of problems such as blurred interfaces and font aliasing.
Advantages: normal interface
Disadvantages: interface blur
Win10 DPI scaling mechanism: full DPI virtualization
The majority of Win10 DPI scaling mechanism is consistent with modern DPI scaling mechanism, the only difference is all DPI The level (including 125%) adopts the DPI virtualization mechanism to ensure the interface is normal.
The Win10 DPI mechanism on the left and the Win8.1 DPI mechanism on the right. Finally, the MAC DPI scaling mechanism is briefly introduced. The Retina screen uses the 200% DPI zoom level. The implementation principle is no different from Windows. The only difference is that when displaying video and images, MAC OS X software uses 100% DPI in the video image area to ensure the quality of video and pictures.
The above is the whole content of Win10's latest DPI zoom technology. As long as the Win10 DPI zoom is set correctly, the computer screen will be much clearer.