cefpython/src/dpi_aware_win.pyx at cefpython58 · pythonthings/cefpython · GitHub

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# Project website: https://github.com/cztomczak/cefpython

include "cefpython.pyx"

class DpiAware:

@staticmethod

def GetSystemDpi():

# Win7 DPI (Control Panel > Appearance and Personalization > Display):

# text size Larger 150% => dpix/dpiy 144

# text size Medium 125% => dpix/dpiy 120

# text size Smaller 100% => dpix/dpiy 96

# dpix=96 zoomlevel=0.0

# dpix=120 zoomlevel=1.0

# dpix=144 zoomlevel=2.0

# dpix=72 zoomlevel=-1.0

# If DPI awareness wasn't yet enabled, then GetSystemDpi

# will always return a default 96 DPI.

cdef int dpix = 0

cdef int dpiy = 0

GetSystemDpi(&dpix, &dpiy)

return tuple(dpix, dpiy)

@staticmethod

def CalculateWindowSize(int width, int height):

# Calculation for DPI < 96 is not yet supported.

GetDpiAwareWindowSize(&width, &height)

return tuple(width, height)

@staticmethod

def IsProcessDpiAware():

return IsProcessDpiAware()

@staticmethod

def SetProcessDpiAware():

"""Deprecated."""

DpiAware.EnableHighDpiSupport()

@staticmethod

def EnableHighDpiSupport():

# This CEF function sets process to be DPI aware. This

# CEF func is also called in subprocesses.

CefEnableHighDPISupport()