The DrawTextEx function draws formatted text in the specified rectangle.
int DrawTextEx(
HDC hdc, |
// handle to device context |
LPTSTR lpchText, |
// pointer to string to draw |
int cchText, |
// length of string to draw |
LPRECT lprc, |
// pointer to rectangle coordinates |
UINT dwDTFormat, |
// formatting options |
LPDRAWTEXTPARAMS lpDTParams |
// pointer to structure for more options |
); |
Value |
Meaning |
DT_BOTTOM |
Justifies the text to the bottom of the rectangle. 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, DrawTextEx uses the width of the rectangle pointed to by the lprc parameter and extends the base of the rectangle to bound the last line of text. If there is only one line of text, DrawTextEx modifies the right side of the rectangle so that it bounds the last character in the line. In either case, DrawTextEx returns the height of the formatted text, but does not draw the text. |
DT_CENTER |
Centers text horizontally in the rectangle. |
DT_EDITCONTROL |
Duplicates the text-displaying characteristics of a multiline edit control. Specifically, the average character width is calculated in the same manner as for an edit control, and the function does not display a partially visible last line. |
DT_END_ELLIPSIS or DT_PATH_ELLIPSIS |
Replaces part of the given string with ellipses, if necessary, so that the result fits in the specified rectangle. The given string is not modified unless the DT_MODIFYSTRING flag is specified. You can specify DT_END_ELLIPSIS to replace characters at the end of the string, or DT_PATH_ELLIPSIS to replace characters in the middle of the string. If the string contains backslash (\) characters, DT_PATH_ELLIPSIS preserves as much as possible of the text after the last backslash. |
DT_EXPANDTABS |
Expands tab characters. The default number of characters per tab is eight. |
DT_EXTERNALLEADING |
Includes the font external leading in line height. Normally, external leading is not included in the height of a line of text. |
DT_LEFT |
Aligns text to the left. |
DT_MODIFYSTRING |
Modifies the given string to match the displayed text. This flag has no effect unless the DT_END_ELLIPSIS or DT_PATH_ELLIPSIS flag is specified. |
DT_NOCLIP |
Draws without clipping. DrawTextEx is somewhat faster when DT_NOCLIP is used. |
DT_NOPREFIX |
Turns off processing of prefix characters. Normally, DrawTextEx interprets the ampersand (&) mnemonic-prefix character as a directive to underscore the character that follows, and the double ampersand (&&) mnemonic-prefix characters as a directive to print a single ampersand. By specifying DT_NOPREFIX, this processing is turned off. |
DT_RIGHT |
Aligns text to the right. |
DT_RTLREADING |
Layout in right to left reading order for bi-directional text when the font selected into the hdc is a Hebrew or Arabic font. The default reading order for all text is left to right. |
DT_SINGLELINE |
Displays text on a single line only. Carriage returns and linefeeds do not break the line. |
DT_TABSTOP |
Sets tab stops. The DRAWTEXTPARAMS structure pointed to by the lpDTParams parameter specifies the number of average character widths per tab stop. |
DT_TOP |
Top justifies text (single line only). |
DT_VCENTER |
Centers text vertically (single line only). |
DT_WORDBREAK |
Breaks words. Lines are automatically broken between words if a word extends past the edge of the rectangle specified by the lprc parameter. A carriage return-linefeed sequence also breaks the line. |
If the function succeeds, the return value is the text height.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
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