Associates or disassociates a VIO presentation space with a device context.

#define INCL_VIO
#include <os2.h>

HDC       hdc;   /*  Device-context handle. */
HVIO      hvps;  /*  VIO presentation space handle. */
APIRET    rc;    /*  Return code. */

rc = VioAssociate(hdc, hvps);


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