XcmsWhiteAdjustProc XcmsSetWhiteAdjustProc(ccc, white_adjust_proc, client_data)
      XcmsCCC ccc;
      XcmsWhiteAdjustProc white_adjust_proc;
      XPointer client_data;
| ccc | Specifies the CCC. | 
| white_adjust_proc | Specifies the white point adjustment procedure. | 
| client_data | Specifies client data for the white point adjustment procedure or NULL. |