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Zeile 45: | Zeile 45: | ||
function getScreenSize(property) | function getScreenSize(property) | ||
local result = | local result = nil | ||
local needToClose = false | local needToClose = false | ||
if property then | if property then | ||
result = "" | |||
for key, prop in pairs(property) do | for key, prop in pairs(property) do | ||
if key == 1 then | if key == 1 then | ||
Zeile 66: | Zeile 67: | ||
function getScreenResolution(property) | function getScreenResolution(property) | ||
local result = | local result = nil | ||
if property then | if property then | ||
if property[2] then | if property[2] then | ||
Zeile 78: | Zeile 79: | ||
function getScreenPpi(property) | function getScreenPpi(property) | ||
return getValueWithUnit(property[1]) | if property and property[1] then | ||
return getValueWithUnit(property[1]) | |||
else | |||
return nil | |||
end | |||
end | end | ||
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