如何在Mac OSX Swift上获得所有受支持的屏幕分辨率 [英] How can I get all supported screen resolutions on mac OSX Swift

问题描述

我想要一个代码

1)抓住我当前的屏幕分辨率(已解决).

1)grabs my current screen resolution, (solved).

例如:获取当前屏幕显示代码是:

For example : to get current screen display code is :

system_profiler SPDisplaysDataType | grep分辨率

system_profiler SPDisplaysDataType |grep Resolution

2)抓住所有支持的分辨率，如下图所示(未解决).

2)grabs all supported resolution as shown in picture below (unsolved).

或任何目标C代码也将有用

or any Objective C code will be also useful

推荐答案

快速代码

    var displayConfig: CGDisplayConfigRef = nil
    let mainDisplayID = CGMainDisplayID()

    var displayMode = CGDisplayCopyDisplayMode(mainDisplayID).takeRetainedValue()
    var width = CGDisplayModeGetWidth(displayMode)
    var height = CGDisplayModeGetHeight(displayMode)

    print("current size: \(width)x\(height)\n")
    print("available sizes:\n")

    var modes = CGDisplayCopyAllDisplayModes(mainDisplayID, nil).takeRetainedValue()
    let modesCount = CFArrayGetCount(modes) - 1

    for i in 0...modesCount {
        var mode: CGDisplayModeRef = unsafeBitCast(CFArrayGetValueAtIndex(modes, i), CGDisplayModeRef.self)

        var width = CGDisplayModeGetWidth(mode)
        var height = CGDisplayModeGetHeight(mode)
        print("\t\(width)x\(height)\n")

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