Qt Windows高清DPI自适应分辨率缩放

windows实际分辨率， 1920x1080

显示窗体w大小:800x600

100缩放率：

关闭Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

"\\\\.\\DISPLAY1"

devicePixelRatio 1

geometry QRect(0,0 1920x1080)

virtualGeometry QRect(0,0 1920x1080)

size QSize(1920, 1080)

virtualSize QSize(1920, 1080)

logicalDotsPerInch 96

scale: 1

开启Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

"\\\\.\\DISPLAY1"

devicePixelRatio 1

geometry QRect(0,0 1920x1080)

virtualGeometry QRect(0,0 1920x1080)

size QSize(1920, 1080)

virtualSize QSize(1920, 1080)

logicalDotsPerInch 96

scale: 1

125缩放率：

关闭Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

"\\\\.\\DISPLAY1"

devicePixelRatio 1

geometry QRect(0,0 1920x1080)

virtualGeometry QRect(0,0 1920x1080)

size QSize(1920, 1080)

virtualSize QSize(1920, 1080)

logicalDotsPerInch 120

scale: 1.25

w.size() QSize(800, 600)

开启Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

"\\\\.\\DISPLAY1"

devicePixelRatio 1

geometry QRect(0,0 1920x1080)

virtualGeometry QRect(0,0 1920x1080)

size QSize(1920, 1080)

virtualSize QSize(1920, 1080)

logicalDotsPerInch 120

scale: 1.25

w.size() QSize(800, 600)

150缩放率：

关闭Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

devicePixelRatio 1

geometry QRect(0,0 1920x1080)

virtualGeometry QRect(0,0 1920x1080)

size QSize(1920, 1080)

virtualSize QSize(1920, 1080)

logicalDotsPerInch 144

scale: 1.5

开启Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

devicePixelRatio 2

geometry QRect(0,0 960x540)

virtualGeometry QRect(0,0 960x540)

size QSize(960, 540)

virtualSize QSize(960, 540)

logicalDotsPerInch 96

scale: 1

看来会按照 devicePixelRatio 去把屏幕大小做了缩小

175缩放率：

关闭Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

"\\\\.\\DISPLAY1"

devicePixelRatio 1

geometry QRect(0,0 1920x1080)

virtualGeometry QRect(0,0 1920x1080)

size QSize(1920, 1080)

virtualSize QSize(1920, 1080)

logicalDotsPerInch 168

scale: 1.75

开启Qt::AA_EnableHighDpiScaling

ui->pushButton->size() QSize(114, 30)

"\\\\.\\DISPLAY1"

devicePixelRatio 2

geometry QRect(0,0 960x540)

virtualGeometry QRect(0,0 960x540)

size QSize(960, 540)

virtualSize QSize(960, 540)

logicalDotsPerInch 96

scale: 1

下面这种方法待尝试

使用qt.conf，在资源qrc里添加，qt/etc/qt.conf, qt.conf文件内容为：

[Platforms][Platforms]
WindowsArguments = dpiawareness=0

https://blog.csdn.net/startl/article/details/105862817

https://doc.qt.io/qt-5/highdpi.html

https://doc.qt.io/qt-6/highdpi.html

Lower-level graphics drawing (such as OpenGL code) need to be high-DPI aware, but can use cross platform Qt APIs to learn about the platform's display resolutions.

但是dpi aware情况下，控件显示异常怎么解决？