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Manual Reference Pages  - XDrawString (3X11)

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XDrawString, XDrawString16 - draw text characters

CONTENTS

Syntax
Arguments
Description
Diagnostics

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);

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. and define the origin of the first character
x
y	Specify the x and y coordinates, which are relative to the origin of the specified drawable.

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(3X11), XDrawText(3X11), XLoadFont(3X11)
Xlib - C Language X Interface

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