| Value | Meaning |
| SM_ARRANGE | Flags specifying how the system arranged minimized windows. For more information about minimized windows, see the following Remarks section. |
| SM_CLEANBOOT | Value that specifies how the system was started: 0 Normal boot
1 Fail-safe boot
2 Fail-safe with network boot Fail-safe boot (also called SafeBoot, Safe Mode, or Clean Boot) bypasses the user's startup files. |
| SM_CMONITORS | Number of display monitors on the desktop. See Remarks for more information. Windows NT, Windows 95: This value is not supported. |
| SM_CMOUSEBUTTONS | Number of buttons on mouse, or zero if no mouse is installed. |
| SM_CXBORDER, SM_CYBORDER | Width and height of a window border, in pixels. This is equivalent to the SM_CXEDGE value for windows with the 3-D look. |
| SM_CXCURSOR, SM_CYCURSOR | Width and height of a cursor, in pixels. The system cannot create cursors of other sizes. |
| SM_CXDLGFRAME, SM_CYDLGFRAME | Same as SM_CXFIXEDFRAME and SM_CYFIXEDFRAME. |
| SM_CXDOUBLECLK, SM_CYDOUBLECLK | Width and height of the rectangle around the location of a first click in a double-click sequence, in pixels. The second click must occur within this rectangle for the system to consider the two clicks a double-click. (The two clicks must also occur within a specified time.) To set the width and height of the double-click rectangle, call SystemParametersInfo with the SPI_SETDOUBLECLKHEIGHT and SPI_SETDOUBLECLKWIDTH flags. |
| SM_CXDRAG, SM_CYDRAG | Width and height of a rectangle centered on a drag point to allow for limited movement of the mouse pointer before a drag operation begins. These values are in pixels. It allows the user to click and release the mouse button easily without unintentionally starting a drag operation. |
| SM_CXEDGE, SM_CYEDGE | Dimensions of a 3-D border, in pixels. These are the 3-D counterparts of SM_CXBORDER and SM_CYBORDER. |
| SM_CXFIXEDFRAME, SM_CYFIXEDFRAME | Thickness of the frame around the perimeter of a window that has a caption but is not sizable, in pixels. SM_CXFIXEDFRAME is the height of the horizontal border and SM_CYFIXEDFRAME is the width of the vertical border. Same as SM_CXDLGFRAME and SM_CYDLGFRAME. |
| SM_CXFOCUSBORDER, SM_CYFOCUSBORDER | Width of the left and right edges and the height of the top and bottom edges of the focus rectangle drawn by DrawFocusRect. These values are in pixels. Windows 2000/NT, Windows Me/98/95: This value is not supported. |
| SM_CXFRAME, SM_CYFRAME | Same as SM_CXSIZEFRAME and SM_CYSIZEFRAME. |
| SM_CXFULLSCREEN, SM_CYFULLSCREEN | Width and height of the client area for a full-screen window on the primary display monitor, in pixels. To get the coordinates of the portion of the screen not obscured by the system taskbar or by application desktop toolbars, call the SystemParametersInfo function with the SPI_GETWORKAREA value. |
| SM_CXHSCROLL, SM_CYHSCROLL | Width of the arrow bitmap on a horizontal scroll bar, in pixels; and height of a horizontal scroll bar, in pixels. |
| SM_CXHTHUMB | Width of the thumb box in a horizontal scroll bar, in pixels. |
| SM_CXICON, SM_CYICON | Default width and height of an icon, in pixels. The LoadIcon function can load only icons of these dimensions. |
| SM_CXICONSPACING, SM_CYICONSPACING | Dimensions of a grid cell for items in large icon view, in pixels. Each item fits into a rectangle of this size when arranged. These values are always greater than or equal to SM_CXICON and SM_CYICON. |
| SM_CXMAXIMIZED, SM_CYMAXIMIZED | Default dimensions, in pixels, of a maximized top-level window on the primary display monitor. |
| SM_CXMAXTRACK, SM_CYMAXTRACK | Default maximum dimensions of a window that has a caption and sizing borders, in pixels. This metric refers to the entire desktop. The user cannot drag the window frame to a size larger than these dimensions. A window can override these values by processing the WM_GETMINMAXINFO message. |
| SM_CXMENUCHECK, SM_CYMENUCHECK | Dimensions of the default menu check-mark bitmap, in pixels. |
| SM_CXMENUSIZE, SM_CYMENUSIZE | Dimensions of menu bar buttons, such as the child window close button used in the multiple document interface, in pixels. |
| SM_CXMIN, SM_CYMIN | Minimum width and height of a window, in pixels. |
| SM_CXMINIMIZED, SM_CYMINIMIZED | Dimensions of a minimized window, in pixels. |
| SM_CXMINSPACING SM_CYMINSPACING | Dimensions of a grid cell for a minimized window, in pixels. Each minimized window fits into a rectangle this size when arranged. These values are always greater than or equal to SM_CXMINIMIZED and SM_CYMINIMIZED. |
| SM_CXMINTRACK, SM_CYMINTRACK | Minimum tracking width and height of a window, in pixels. The user cannot drag the window frame to a size smaller than these dimensions. A window can override these values by processing the WM_GETMINMAXINFO message. |
| SM_CXSCREEN, SM_CYSCREEN | Width and height of the screen of the primary display monitor, in pixels. These are the same values obtained by calling GetDeviceCaps(hdcPrimaryMonitor, HORZRES/VERTRES). |
| SM_CXSIZE, SM_CYSIZE | Width and height of a button in a window's caption or title bar, in pixels. |
| SM_CXSIZEFRAME, SM_CYSIZEFRAME | Thickness of the sizing border around the perimeter of a window that can be resized, in pixels. SM_CXSIZEFRAME is the width of the horizontal border, and SM_CYSIZEFRAME is the height of the vertical border. Same as SM_CXFRAME and SM_CYFRAME. |
| SM_CXSMICON, SM_CYSMICON | Recommended dimensions of a small icon, in pixels. Small icons typically appear in window captions and in small icon view. |
| SM_CXSMSIZE SM_CYSMSIZE | Dimensions of small caption buttons, in pixels. |
| SM_CXVIRTUALSCREEN, SM_CYVIRTUALSCREEN | Width and height of the virtual screen, in pixels. The virtual screen is the bounding rectangle of all display monitors. The SM_XVIRTUALSCREEN, SM_YVIRTUALSCREEN metrics are the coordinates of the top-left corner of the virtual screen. Windows NT, Windows 95: This value is not supported. |
| SM_CXVSCROLL, SM_CYVSCROLL | Width of a vertical scroll bar, in pixels; and height of the arrow bitmap on a vertical scroll bar, in pixels. |
| SM_CYCAPTION | Height of a caption area, in pixels. |
| SM_CYKANJIWINDOW | For double byte character set versions of the system, this is the height of the Kanji window at the bottom of the screen, in pixels. |
| SM_CYMENU | Height of a single-line menu bar, in pixels. |
| SM_CYSMCAPTION | Height of a small caption, in pixels. |
| SM_CYVTHUMB | Height of the thumb box in a vertical scroll bar, in pixels. |
| SM_DBCSENABLED | TRUE or nonzero if User32.dll supports DBCS; FALSE or zero otherwise. Windows Me/98/95: TRUE or nonzero if the double-byte character-set (DBCS) version of User.exe is installed; FALSE or zero otherwise. |
| SM_DEBUG | TRUE or nonzero if the debug version of User.exe is installed; FALSE or zero otherwise. |
| SM_IMMENABLED | TRUE or nonzero if Input Method Manager/Input Method Editor features are enabled; FALSE or zero otherwise. Windows NT, Windows Me/98/95: This value is not supported. SM_IMMENABLED indicates whether the system is ready to use a Unicode-based IME on a Unicode application. To ensure that a language-dependent IME works, check SM_DBCSENABLED and the system ANSI code page. Otherwise the ANSI-to-Unicode conversion may not be performed correctly, or some components like fonts or registry setting may not be present. |
| SM_MENUDROPALIGNMENT | TRUE or nonzero if drop-down menus are right-aligned with the corresponding menu-bar item; FALSE or zero if the menus are left-aligned. |
| SM_MIDEASTENABLED | TRUE if the system is enabled for Hebrew and Arabic languages. |
| SM_MOUSEPRESENT | TRUE or nonzero if a mouse is installed; FALSE or zero otherwise. |
| SM_MOUSEWHEELPRESENT | TRUE or nonzero if a mouse with a wheel is installed; FALSE or zero otherwise. Windows 3.51 and earlier, Windows 95: This value is not supported. |
| SM_NETWORK | Least significant bit is set if a network is present; otherwise, it is cleared. The other bits are reserved for future use. |
| SM_PENWINDOWS | TRUE or nonzero if the Microsoft Windows for Pen computing extensions are installed; FALSE or zero otherwise. |
| SM_REMOTECONTROL | This system metric is used in a Terminal Services environment. Its value is TRUE if the current session is remotely controlled; FALSE otherwise. Windows 2000/NT, Windows Me/98/95: This value is not supported. |
| SM_REMOTESESSION | This system metric is used in a Terminal Services environment. If the calling process is associated with a Terminal Services client session, the return value is TRUE or nonzero. If the calling process is associated with the Terminal Server console session, the return value is zero. Windows NT 4.0 SP3 and earlier, Windows Me/98/95: This value is not supported. |
| SM_SECURE | TRUE if security is present; FALSE otherwise. |
| SM_SAMEDISPLAYFORMAT | TRUE if all the display monitors have the same color format, FALSE otherwise. Note that two displays can have the same bit depth, but different color formats. For example, the red, green, and blue pixels can be encoded with different numbers of bits, or those bits can be located in different places in a pixel's color value. Windows NT, Windows 95: This value is not supported. |
| SM_SHOWSOUNDS | TRUE or nonzero if the user requires an application to present information visually in situations where it would otherwise present the information only in audible form; FALSE, or zero, otherwise. |
| SM_SHUTTINGDOWN | TRUE if the current session is shutting down; FALSE otherwise. Windows 2000/NT, Windows Me/98/95: This value is not supported. |
| SM_SLOWMACHINE | TRUE if the computer has a low-end (slow) processor; FALSE otherwise. |
| SM_SWAPBUTTON | TRUE or nonzero if the meanings of the left and right mouse buttons are swapped; FALSE or zero otherwise. |
| SM_XVIRTUALSCREEN, SM_YVIRTUALSCREEN | Coordinates for the left side and the top of the virtual screen. The virtual screen is the bounding rectangle of all display monitors. The SM_CXVIRTUALSCREEN, SM_CYVIRTUALSCREEN metrics are the width and height of the virtual screen. Windows NT, Windows 95: This value is not supported. |
