XDrawString, XDrawString16 - draw text characters
int XDrawString(Display *display, Drawable d, GC
gc, int x, int y, _Xconst char *string, int
length);
int XDrawString16(Display *display, Drawable d,
GC gc, int x, int y, _Xconst XChar2b *string,
int length);
- 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.
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.
- 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.
XDrawImageString(3), XDrawText(3), XLoadFont(3)
Xlib - C Language X Interface