Simulation support:

This function is mandatory for hardcopy drivers, but may simply return a DEVESC_NOTIMPLEMENTED code. For other drivers, it is simulated by a handling routine in the graphics engine.

Description:

GreEscape DEVESC_DRAFTMODE sets draft (text) mode ON or OFF. Setting draft mode ON tells the presentation driver that the coming page need not contain any graphics or all-points-addressable output.

#define INCL_GRE_DEVICE
#include <os2.h>

HDC      hdc;         /*  Device context handle. */
LONG     lEscape;     /*  DEVESC_DRAFTMODE escape code. */
LONG     cInCount;    /*  Number of bytes pointed to by pInData. */
PBYTE    pInData;     /*  Short integer value specifying the mode. */
PLONG    pcOutCount;  /*  The handling routine ignores this parameter. */
PLONG    pOutData;    /*  The handling routine ignores this parameter. */
PVOID    pInstance;   /*  Pointer to instance data. */
ULONG    lFunction;   /*  High-order WORD=flags; low-order WORD=NGreEscape. */
LONG     rc;          /*  Return codes. */

rc = GreEscape(hdc, lEscape, cInCount, pInData,
       pcOutCount, pOutData, pInstance, lFunction);