nameID DIALOGEX x, y, width, height [ , helpID]] [[ optional-statements]]  { control-statements }

nameID  Unique name or a unique 16-bit unsigned integer value that identifies the dialog box. 
x  Location on the screen of the left side of the dialog box, in dialog units. 
y  Location on the screen of the top of the dialog box, in dialog units. 
width  Width of the dialog box, in dialog units. 
height  Height of the dialog box, in dialog units. 
helpID  Numeric expression indicating the ID used to identify the dialog
box during WM_HELP processing. 
optional-statements Options for the dialog box. This can be zero or more
of the following statements.

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FONT pointsize, typeface, weight, italic, charset 

Point size and typeface for the font. For weight, use the FW_* values
defined in WINGDI.H. For italic, specify TRUE to use an italic font, FALSE
otherwise. For charset, use the value defined in the charset member of
the LOGFONT structure. To get the definitive font for a dialog box, an
application should specify charset along with other font properties.