Интерактивная система просмотра системных руководств (man-ов)
XDrawString (3)
>> XDrawString (3) ( Разные man: Библиотечные вызовы )
NAME
XDrawString, XDrawString16 - draw text characters
SYNTAX
int XDrawString(Display *display, Drawable d, GC
gc, int x, int y, char *string, int
length);
int XDrawString16(Display *display, Drawable d, GC
gc, int x, int y, XChar2b *string, int
length);
ARGUMENTS
d
Specifies the drawable.
display
Specifies the connection to the X server.
gc
Specifies the GC.
length
Specifies the number of characters in the string argument.
string
Specifies the character string.
x
y
Specify the x and y coordinates, which are relative to the origin of the specified drawable and define the origin of the first character.
DESCRIPTION
Each character image, as defined by the font in the GC, is treated as an
additional mask for a fill operation on the drawable.
The drawable is modified only where the font character has a bit set to 1.
For fonts defined with 2-byte matrix indexing
and used with
XDrawString16,
each byte is used as a byte2 with a byte1 of zero.
Both functions use these GC components:
function, plane-mask, fill-style, font, subwindow-mode, clip-x-origin,
clip-y-origin, and clip-mask.
They also use these GC mode-dependent components:
foreground, background, tile, stipple, tile-stipple-x-origin,
and tile-stipple-y-origin.
XDrawString
and
XDrawString16
can generate
BadDrawable,
BadGC,
and
BadMatch
errors.
DIAGNOSTICS
BadDrawable
A value for a Drawable argument does not name a defined Window or Pixmap.
BadGC
A value for a GContext argument does not name a defined GContext.
BadMatch
An
InputOnly
window is used as a Drawable.
BadMatch
Some argument or pair of arguments has the correct type and range but fails
to match in some other way required by the request.
