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XDrawImageString

Section: XLIB FUNCTIONS (3)
Updated: libX11 1.6.3
Index Return to Main Contents
 

NAME

XDrawImageString, XDrawImageString16 - draw image text  

SYNTAX

int XDrawImageString(Display *display, Drawable d, GC gc, int x, int y, char *string, int length);
int XDrawImageString16(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

The XDrawImageString16 function is similar to XDrawImageString except that it uses 2-byte or 16-bit characters. Both functions also use both the foreground and background pixels of the GC in the destination.

The effect is first to fill a destination rectangle with the background pixel defined in the GC and then to paint the text with the foreground pixel. The upper-left corner of the filled rectangle is at:

[x, y - font-ascent]


The width is:

overall-width


The height is:

font-ascent + font-descent


The overall-width, font-ascent, and font-descent are as would be returned by XQueryTextExtents using gc and string. The function and fill-style defined in the GC are ignored for these functions. The effective function is GXcopy, and the effective fill-style is FillSolid.

For fonts defined with 2-byte matrix indexing and used with XDrawImageString, each byte is used as a byte2 with a byte1 of zero.

Both functions use these GC components: plane-mask, foreground, background, font, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask.

XDrawImageString and XDrawImageString16 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.
 

SEE ALSO

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


 

Index

NAME
SYNTAX
ARGUMENTS
DESCRIPTION
DIAGNOSTICS
SEE ALSO


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