Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
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CDC::DrawText
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──Microsoft Foundation Classes──────────────────────────────────────────────
 
  int DrawText( const char FAR* lpString, int nCount, LPRECT lpRect,
                UINT nFormat );
 
  Parameter   Description
 
  <lpString>  Points to the string to be drawn. If <nCount> is -1, the
              string must be null-terminated.
 
  <nCount>    Specifies the number of bytes in the string. If <nCount> is
              -1, then <lpString> is assumed to be a long pointer to a
              null-terminated string and DrawText computes the character
              count automatically.
 
  <lpRect>    Points to a RECT structure or CRect object that contains
              the rectangle (in logical coordinates) in which the text is
              to be formatted.
 
  <nFormat>   Specifies the method of formatting the text. It can be any
              combination of the following values (combine using the
              bitwise-OR operator):
 
              Value                Meaning
 
              DT_BOTTOM            Specifies bottom-justified text. This
                                   value must be combined with
                                   DT_SINGLELINE.
 
              DT_CALCRECT          Determines the width and height of the
                                   rectangle. If there are multiple lines
                                   of text, DrawText will use the width of
                                   the rectangle pointed to by <lpRect>
                                   and extend the base of the rectangle to
                                   bound the last line of text. If there
                                   is only one line of text, DrawText will
                                   modify the right side of the rectangle
                                   so that it bounds the last character in
                                   the line. In either case, DrawText
                                   returns the height of the formatted
                                   text but does not draw the text.
 
              DT_CENTER            Centers text horizontally.
 
              DT_EXPANDTABS        Expands tab characters. The default
                                   number of characters per tab is eight.
 
              DT_EXTERNALLEADING   Includes the font's external leading in
                                   the line height. Normally, external
                                   leading is not included in the height
                                   of a line of text.
 
              DT_LEFT              Aligns text flush-left.
 
              DT_NOCLIP            Draws without clipping. DrawText is
                                   somewhat faster when DT_NOCLIP is
                                   used.
 
              DT_NOPREFIX          Turns off processing of prefix
                                   characters. Normally, DrawText
                                   interprets the ampersand (&)
                                   mnemonic-prefix character as a
                                   directive to underscore the character
                                   that follows, and the two-ampersand
                                   (&&) mnemonic-prefix characters as a
                                   directive to print a single ampersand.
                                   By specifiying DT_NOPREFIX this
                                   processing is turned off.
 
              DT_RIGHT             Aligns text flush-right.
 
              DT_SINGLELINE        Specifies single line only. Carriage
                                   returns and linefeeds do not break the
                                   line.
 
              DT_TABSTOP           Sets tab stops. The high-order byte of
                                   <nFormat> is the number of characters
                                   for each tab. The default number of
                                   characters per tab is eight.
 
              DT_TOP               Specifies top-justified text (single
                                   line only).
 
              DT_VCENTER           Specifies vertically centered text
                                   (single line only).
 
              DT_WORDBREAK         Specifies word-breaking. Lines are
                                   automatically broken between words if a
                                   word would extend past the edge of the
                                   rectangle specified by <lpRect>. A
                                   carriage return──linefeed sequence will
                                   also break the line.
 
              Note that the values DT_CALCRECT, DT_EXTERNALLEADING,
              DT_INTERNAL, DT_NOCLIP, and DT_NOPREFIX values cannot be
              used with the DT_TABSTOP value.
 
  Remarks
 
  Draws formatted text in the rectangle specified by <lpRect>. It formats
  text by expanding tabs into appropriate spaces, aligning text to the
  left, right, or center of the given rectangle, and breaking text into
  lines that fit within the given rectangle. The type of formatting is
  specified by <nFormat>.
 
  This member function uses the device context's selected font, text
  color, and background color to draw the text. Unless the DT_NOCLIP
  format is used, DrawText clips the text so that the text does not appear
  outside the given rectangle. All formatting is assumed to have multiple
  lines unless the DT_SINGLELINE format is given.
 
  If the selected font is too large for the specified rectangle, the
  DrawText member function does not attempt to substitute a smaller font.
 
  Return Value
 
  The height of the text.
 
  See Also
 
  ::DrawText
 
 
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