This file lists the values of the window parameters that UI Core (Screen) is using for the process specified by the process ID.
The win-window_id file in /dev/screen/pid/ shows the values of the window parameters that UI Core (Screen) is currently using.
From your target, you can see the values of the window parameters that UI Core (Screen) is currently using by looking at the win-window_id file in /dev/screen/pid/win-window_id. The values you see from this file are the values that are currently used at the moment when you cat the file.
For example, for process 1564694 with only one application window, you can use this command from your shell:
# cat /dev/screen/1564694/win-1/win-1
to see the window parameters currently used:
type = SCREEN_APPLICATION_WINDOW autonomous = 0 status = WIN_STATUS_VISIBLE replaced = 0 references = 1 id string = gles1-gears display id = 1 plane id = 4 parent = (none) children = (none) window above = (none) window below = (none) alternate window = (none) insert id = 1 reclip = 0 updates = 0 locked = 0 valid = 0x0000001c class = flags = WIN_FLAG_VISIBLE WIN_FLAG_FLOATING buffer size = 1280x720 format = SCREEN_FORMAT_RGBA8888 usage = SCREEN_USAGE_OPENGL_ES1 order = 0 sensitivity = SCREEN_SENSITIVITY_TEST swap interval = 1 holes = (none) regions = (0,0;1280,720) flip = 0 mirror = 0 source viewport = (0,0 1280x720) source clip rectangle = (0,0;1280,720) clipped source viewport = (0,0;1280,720 1280x720) destination rectangle = (0,0 1280x720) destination clip rectangle = (0,0;1280,720) clipped destination rectangle = (0,0;1280,720 1280x720) rotation = 0 clipped rotation = 0 transparency = SCREEN_TRANSPARENCY_NONE global alpha = 255 -> 255 brightness = 0 contrast = 0 hue = 0 saturation = 0 scale quality = 0 idle mode = normal page viewport = (none) protection_enable = off cbabc mode = SCREEN_CBABC_MODE_NONE rcvids = 65563 metrics.total.objcnt = 0 metrics.total.apicnt = 0 metrics.total.drawcnt = 0 metrics.total.tricnt = 0 metrics.total.vtxcnt = 0 metrics.total.teximg = 0 metrics.total.subdata = 0 metrics.total.events = 0 metrics.total.blits.count = 0 metrics.total.blits.pixels = 0 pixels metrics.total.blits.reads = 0 bytes metrics.total.blits.writes = 0 bytes metrics.total.posts.count = 2675 metrics.total.posts.pixels = 2465 Mpixels metrics.total.updates.count = 2674 metrics.total.updates.pixels = 2464 Mpixels metrics.total.updates.reads = 9857 Mbytes metrics.delta.objcnt = 0 metrics.delta.apicnt = 0 (0 / post) metrics.delta.drawcnt = 0 (0 / post) metrics.delta.tricnt = 0 (0 / post) metrics.delta.vtxcnt = 0 (0 / post) metrics.delta.teximg = 0 metrics.delta.subdata = 0 metrics.delta.events = 0 metrics.delta.blits.count = 0 metrics.delta.blits.pixels = 0 pixels metrics.delta.blits.reads = 0 bytes metrics.delta.blits.writes = 0 bytes metrics.delta.posts.count = 2675 metrics.delta.posts.pixels = 2465 Mpixels metrics.delta.updates.count = 2674 metrics.delta.updates.pixels = 2464 Mpixels metrics.delta.updates.reads = 9857 Mbytes