C# API GetSystemMetrics(int nIndex)用法及值说明

using System.Runtime.InteropServices;
  
[DllImport("user32")]
 public static extern int GetSystemMetrics(int nIndex);


nIndex值：


SM_CXSCREEN = 0 "屏幕宽度
SM_CYSCREEN = 1 "屏幕高度
SM_CXVSCROLL = 2 "垂直滚动条的宽度
SM_CYHSCROLL = 3 "水平滚动条的宽度
SM_CYCAPTION = 4 "Height of windows caption 实际标题高度加上SM_CYBORDER
SM_CXBORDER = 5 "Width of no-sizable borders 无法测量的窗口框架宽度
SM_CYBORDER = 6 "Height of non-sizable borders 无法测量的窗口框架高度
SM_CXDLGFRAME = 7 "Width of dialog box borders
SM_CYDLGFRAME = 8 "Height of dialog box borders
SM_CYHTHUMB = 9 "Height of scroll box on horizontal scroll bar 水平滚动条上滑块的高度
SM_CXHTHUMB = 10 " Width of scroll box on horizontal scroll bar 水平滚动条上滑块的宽度
SM_CXICON = 11 "Width of standard icon 图标宽度
SM_CYICON = 12 "Height of standard icon 图标高度
SM_CXCURSOR = 13 "Width of standard cursor 光标宽度
SM_CYCURSOR = 14 "Height of standard cursor 光标高度
SM_CYMENU = 15 "Height of menu 以像素计算的单个菜单条的高度
SM_CXFULLSCREEN = 16 "Width of client area of maximized window
SM_CYFULLSCREEN = 17 "Height of client area of maximized window
SM_CYKANJIWINDOW = 18 "Height of Kanji window
SM_MOUSEPRESENT = 19 "True is a mouse is present 如果为TRUE或不为0的值则安装了鼠标，否则没有安装。
SM_CYVSCROLL = 20 "Height of arrow in vertical scroll bar
SM_CXHSCROLL = 21 "Width of arrow in vertical scroll bar
SM_DEBUG = 22 "True if deugging version of windows is running
SM_SWAPBUTTON = 23 "True if left and right buttons are swapped.
SM_CXMIN = 28 "Minimum width of window
SM_CYMIN = 29 "Minimum height of window
SM_CXSIZE = 30 "Width of title bar bitmaps
SM_CYSIZE = 31 "height of title bar bitmaps
SM_CXMINTRACK = 34 "Minimum tracking width of window
SM_CYMINTRACK = 35 "Minimum tracking height of window
SM_CXDOUBLECLK = 36 "double click width
SM_CYDOUBLECLK = 37 "double click height
SM_CXICONSPACING = 38 "width between desktop icons
SM_CYICONSPACING = 39 "height between desktop icons
SM_MENUDROPALIGNMENT = 40 "Zero if popup menus are aligned to the left of the memu bar item. True if it is aligned to the right.
SM_PENWINDOWS = 41 "The handle of the pen windows DLL if loaded.
SM_DBCSENABLED = 42 "True if double byte characteds are enabled
SM_CMOUSEBUTTONS = 43 "Number of mouse buttons.
SM_CMETRICS = 44 "Number of system metrics
SM_CLEANBOOT = 67 "Windows 95 boot mode. 0 = normal, 1 = safe, 2 = safe with network
SM_CXMAXIMIZED = 61 "default width of win95 maximised window
SM_CXMAXTRACK = 59 "maximum width when resizing win95 windows
SM_CXMENUCHECK = 71 "width of menu checkmark bitmap
SM_CXMENUSIZE = 54 "width of button on menu bar
SM_CXMINIMIZED = 57 "width of rectangle into which minimised windows must fit.
SM_CYMAXIMIZED = 62 "default height of win95 maximised window
SM_CYMAXTRACK = 60 "maximum width when resizing win95 windows
SM_CYMENUCHECK = 72 "height of menu checkmark bitmap
SM_CYMENUSIZE = 55 "height of button on menu bar
SM_CYMINIMIZED = 58 "height of rectangle into which minimised windows must fit.
SM_CYSMCAPTION = 51 "height of windows 95 small caption
SM_MIDEASTENABLED = 74 "Hebrw and Arabic enabled for windows 95
SM_NETWORK = 63 "bit o is set if a network is present.
SM_SECURE = 44 "True if security is present on windows 95 system
SM_SLOWMACHINE = 73 "true if machine is too slow to run win95.