harmony 鸿蒙NativeDisplayManager_DisplayInfo

2025-06-12
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NativeDisplayManager_DisplayInfo

Overview

The NativeDisplayManager_DisplayInfo struct describes the information about a display.

Since: 14

Related module: OH_DisplayManager

Header file: oh_display_info.h

Summary

Member Variables

|Name|Description| |–|–| |uint32_t id|ID of the display. The value must be a non-negative integer.| |char name|Name of the display.| |bool isAlive|Whether the display is active. The value true means that the display is active, and false means the opposite.| |int32_t width|Width of the display, in px. The value must be a non-negative integer.| |int32_t height|Height of the display, in px. The value must be a non-negative integer.| |int32_t physicalWidth|Physical width of the display, in px. The value must be a non-negative integer.| |int32_t physicalHeight|Physical height of the display, in px. The value must be a non-negative integer.| |uint32_t refreshRate|Refresh rate of the display, in Hz. The value must be a non-negative integer.| |uint32_t availableWidth|Width of the available area on a 2-in-1 device, in px. The value must be a non-negative integer.| |uint32_t availableHeight|Height of the available area on a 2-in-1 device, in px. The value is an integer greater than 0.| |float densityDPI|Physical pixel density of the display, that is, the number of pixels per inch. The value must be a floating point number greater than 0. The unit is px. Generally, the value is 160.0 or 480.0. The actual value depends on the optional values provided by the device in use.| |float densityPixels|Logical pixel density of the display, which is the scaling coefficient between physical pixels and logical pixels. The value is a floating point number greater than 0 and is restricted by the range of densityDPI. The value range is [0.5, 4.0]. Generally, the value is 1.0 or 3.0. The actual value depends on the density DPI provided by the device in use.| |float scaledDensity|Scaling factor for fonts displayed on the display. The value must be a floating point number greater than 0. Generally, the value is the same as that of densityPixels.| |float xDPI|Exact physical pixels per inch of the display in the X dimension. The value must be a floating point number greater than 0.| |float yDPI|Exact physical pixels per inch of the display in the Y dimension. The value must be a floating point number greater than 0.| |NativeDisplayManager_Rotation rotation|Clockwise rotation angle of the display.| |NativeDisplayManager_DisplayState state|State of the display.| |NativeDisplayManager_Rotation orientation|Orientation of the display.| |NativeDisplayManager_DisplayHdrFormat* hdrFormat|All the HDR formats supported by the display.| |NativeDisplayManager_DisplayColorSpace* colorSpace|All the color spaces supported by the display.|