REDRAW ALL STRUCTURES
CALL SEQUENCE
void predraw_all_structs (wkid, ctrl_flag)
INPUT PARAMETERS
Pint wkid;
Pctrl_flag ctrl_flag;
ARGUMENTS
- wkid
- Workstation identifier
- ctrl_flag
- Control flag :
- PFLAG_COND
- conditionally
- PFLAG_ALWAYS
- always
EFFECT
This function draws all structures "posted" on the workstation. The display
surface may or may not be cleared, depending on the value of th control flag
ctrl_flag. If the control flag is PFLAG_COND, the display
surface is cleared only if it is not empty. If the control flag is
PFLAG_ALWAYS, the display surface is always cleared.
Clearing the display surface of a printer or plotter often results in a blank
page being issued. For workstations of this type is preferable to set the
control flag to PFLAG_COND.