XStoreNamedColor
Syntax
XStoreNamedColor(display, colormap, color, pixel, flags)
Display *display;
Colormap colormap;
char *color;
unsigned long pixel;
int flags;
Arguments
| display
| Specifies the connection to the X server.
|
| colormap
| Specifies the colormap.
|
| color
| Specifies the color name string (for example, red).
|
| pixel
| Specifies the entry in the colormap.
|
| flags
| Specifies which red, green, and blue components are set.
|
Description
The
XStoreNamedColor()
function looks up the named color with respect to the screen associated with
the colormap and stores the result in the specified colormap.
The pixel argument determines the entry in the colormap.
The flags argument determines which of the red, green, and blue components
are set.
You can set this member to the
bitwise inclusive OR of the bits
DoRed,
DoGreen,
and
DoBlue.
If the color name is not in the Host Portable Character Encoding,
the result is implementation dependent.
Use of uppercase or lowercase does not matter.
If the specified pixel is not a valid index into the colormap, a
BadValue
error results.
If the specified pixel either is unallocated or is allocated read-only, a
BadAccess
error results.
XStoreNamedColor()
can generate
BadAccess,
BadColor,
BadName,
and
BadValue
errors.
Diagnostics
| BadAccess
| A client attempted to free a color map entry that
it did not already allocate.
|
| BadAccess
| A client attempted to store into a read-only color
map entry.
|
| BadColor
| A value for a Colormap argument does not name a
defined Colormap.
|
| BadName
| A font or color of the specified name does not exist.
|
| BadValue
| Some numeric value falls outside the range of values accepted by the request.
Unless a specific range is specified for an argument, the full range defined
by the argument's type is accepted. Any argument defined as a set of
alternatives can generate this error.
|
See also
XAllocColor(),
XCreateColormap(),
XQueryColor(),
XStoreColor(),
XStoreColors(),
"Modifying and Querying Colormap Cells".
Christophe Tronche, ch@tronche.com