Status XcmsQueryColors(display, colormap, colors_in_out, ncolors, result_format)
      Display *display;
      Colormap colormap;
      XcmsColor colors_in_out[];
      unsigned int ncolors;
      XcmsColorFormat result_format;
| display | Specifies the connection to the X server. | 
| colormap | Specifies the colormap. | 
| colors_in_out | Specifies an array of XcmsColor structures, each pixel member indicating the color cell to query. The color specifications for the color cells are returned in these structures. | 
| ncolors | Specifies the number of XcmsColor structures in the color specification array. | 
| result_format | Specifies the color format for the returned color specification. | 
XcmsQueryColors() can generate BadColor and BadValue errors.
| 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. |