GNU/Linux |
Debian 7.3.0(Wheezy) |
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XDrawString(3) |
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XDrawString, XDrawString16 − draw text characters
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); |
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
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XDrawString(3) | ![]() |