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GetSystemMetrics

Windows CE .NET

This function retrieves the dimensions — widths and heights — of Windows display elements and system configuration settings. All dimensions retrieved by GetSystemMetrics are in pixels. The RAPI version is CeGetSystemMetrics (RAPI) for versions 2.0 and later.

int GetSystemMetrics(
  int nIndex
); 

Parameters

nIndex
Specifies the system metric or configuration setting to retrieve. All SM_CX* values are widths. All SM_CY* values are heights. The following values are defined.
Value Description
SM_CMONITORS Number of display monitors on the Windows CE-based device. Supported in Windows CE .NET 4.0 and later.
SM_CXBORDER, SM_CYBORDER Width and height, in pixels, of a window border. This is equivalent to the SM_CXEDGE value for windows with the 3-D look.
SM_CXCURSOR, SM_CYCURSOR Width and height, in pixels, of a cursor. 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, in pixels, of the rectangle around the location of a first click in a double-click sequence. 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.)
SM_CXEDGE, SM_CYEDGE Dimensions, in pixels, of a 3-D border. These are the 3-D counterparts of SM_CXBORDER and SM_CYBORDER.
SM_CXFIXEDFRAME, SM_CYFIXEDFRAME Thickness, in pixels, of the frame around the perimeter of a window that has a caption but is not sizable. SM_CXFIXEDFRAME is the width of the horizontal border and SM_CYFIXEDFRAME is the height of the vertical border.

Same as SM_CXDLGFRAME and SM_CYDLGFRAME.

SM_CXHSCROLL, SM_CYHSCROLL Width, in pixels, of the arrow bitmap on a horizontal scroll bar; and height, in pixels, of a horizontal scroll bar.
SM_CXICON, SM_CYICON The default width and height, in pixels, of an icon. The LoadIcon function can load only icons of these dimensions.
SM_CXICONSPACING, SM_CYICONSPACING Dimensions, in pixels, of a grid cell for items in large icon view. 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_CXMENUCHECK, SM_CYMENUCHECK Dimensions, in pixels, of the default menu check-mark bitmap.
SM_CXSCREEN, SM_CYSCREEN Width and height, in pixels, of the screen of the primary display monitor. These are the same values you obtain by calling GetDeviceCaps (hdcPrimaryMonitor, HORZRES/VERTRES).
SM_CXSMICON, SM_CYSMICON Recommended dimensions, in pixels, of a small icon. Small icons typically appear in window captions and in small icon view.
SM_CXVIRTUALSCREEN, SM_CYVIRTUALSCREEN Width and height, in pixels, of the virtual screen. The virtual screen is the bounding rectangle of all display monitors. Supported in Windows CE .NET 4.0 and later.
SM_CXVSCROLL, SM_CYVSCROLL Width, in pixels, of a vertical scroll bar; and height, in pixels, of the arrow bitmap on a vertical scroll bar.
SM_CYCAPTION Height, in pixels, of a normal caption area.
SM_CYMENU Height, in pixels, of a single-line menu bar.
SM_DEBUG TRUE or nonzero if the debugging version of USER.EXE is installed; FALSE or zero otherwise.
SM_SAMEDISPLAYFORMAT TRUE if all the display monitors have the same color format, FALSE otherwise. Supported in Windows CE .NET 4.0 and later.
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. Supported in Windows CE .NET 4.0 and later.

Return Values

The requested system metric or configuration setting indicates success. Zero indicates failure. The GetLastError function does not provide extended error information.

Remarks

Windows CE does not support the following nIndex values:

SM_ARRANGE SM_CYMINIMIZED
SM_CLEANBOOT SM_CXMINSPACING
SM_CMETRICS SM_CYMINSPACING
SM_CMOUSEBUTTONS SM_CXMINTRACK
SM_CXDRAG SM_CYMINTRACK
SM_CYDRAG SM_CXSIZE
SM_CXFRAME SM_CYSIZE
SM_CYFRAME SM_CXSIZEFRAME
SM_CXFULLSCREEN SM_CYSIZEFRAME
SM_CYFULLSCREEN SM_CXSMSIZE
SM_CXHTHUMB SM_CYSMSIZE
SM_CYKANJIWINDOW SM_CYSMCAPTION
SM_CXMAXIMIZED SM_CYVTHUMB
SM_CYMAXIMIZED SM_DBCSENABLED
SM_CXMAXTRACK SM_MENUDROPALIGNMENT
SM_CYMAXTRACK SM_MIDEASTENABLED
SM_CXMENUCHECK SM_MOUSEPRESENT
SM_CYMENUCHECK SM_MOUSEWHEELPRESENT
SM_CXMENUSIZE SM_NETWORK
SM_CYMENUSIZE SM_PENWINDOWS
SM_CXMIN SM_SECURE
SM_CYMIN SM_SHOWSOUNDS
SM_CXMINIMIZED SM_SLOWMACHINE
  SM_SWAPBUTTON

If the Windows CE–based device you are targeting supports a mouse cursor, you can use the SM_CXCURSOR or SM_CYCURSOR values in the nIndex parameter.

Windows CE versions that support mouse cursors include the Iconcurs and Mcursor components rather than the Icon and Cursor components.

When working with RAPI in Windows CE 1.0 and 1.01, use the PegGetSystemMetrics function.

System metrics may vary from display to display.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.
Link Library: Wmbase.lib.

See Also

GetDeviceCaps | LoadIcon | SystemParametersInfo | System Information Functions


Last updated on Wednesday, April 13, 2005

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