XQueryColor

Syntax

XQueryColor(display, colormap, def_in_out)
      Display *display;
      Colormap colormap;
      XColor *def_in_out;

Arguments

display	Specifies the connection to the X server.
colormap	Specifies the colormap.
def_in_out	Specifies and returns the RGB values for the pixel specified in the structure.

Description

The XQueryColor() function returns the current RGB value for the pixel in the XColor structure and sets the DoRed, DoGreen, and DoBlue flags.

XQueryColor() can generate BadColor and BadValue errors.

Diagnostics

BadColor	A value for a Colormap argument does not name a defined Colormap.
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.

XQueryColor

Syntax

Arguments

Description

Diagnostics

See also