VioGetMode (OS/2 1.x)

This call returns the mode of the display.

Syntax
VioGetMode (ModeData, VioHandle)

Parameters

 * ModeData (PVIOMODEINFO) - input/output : Far address of a structure where mode characteristics are returned.
 * VioHandle (HVIO) - input : Reserved word of 0s.

Return Code

 * rc (USHORT) - return:Return code descriptions are:
 * 0 NO_ERROR
 * 436 ERROR_VIO_INVALID_HANDLE
 * 438 ERROR_VIO_INVALID_LENGTH
 * 465 ERROR_VIO_DETACHED
 * 494 ERROR_VIO_EXTENDED_SG

Remarks
Refer to VioSetMode for examples.

C
 typedef struct _VIOMODEINFO { USHORT cb;                 /* Length of the entire data structure */ UCHAR fbType;              /* Bit mask of mode being set          */ UCHAR color;               /* Number of colors (power of 2)       */ USHORT col;                /* Number of text columns              */ USHORT row;                /* Number of text rows                 */ USHORT hres;               /* Horizontal resolution               */ USHORT vres;               /* Vertical resolution                 */ UCHAR fmt_ID;              /* Attribute format                    */ UCHAR attrib;              /* Number of attributes                */ ULONG buf_addr; ULONG buf_length; ULONG full_length; ULONG partial_length; PCH   ext_data_addr; } VIOMODEINFO; typedef VIOMODEINFO far *PVIOMODEINFO;


 * 1) define INCL_VIO

USHORT rc = VioGetMode(ModeData, VioHandle);

PVIOMODEINFO    ModeData;      /* Mode characteristics */ HVIO            VioHandle;     /* Vio handle */

USHORT          rc;            /* return code */ 

MASM
 VIOMODEINFO struc viomi_cb            dw ? ;Length of the entire data structure viomi_fbType        db ? ;Bit mask of mode being set viomi_color         db ? ;Number of colors (power of 2) viomi_col           dw ? ;Number of text columns viomi_row           dw ? ;Number of text rows viomi_hres          dw ? ;Horizontal resolution viomi_vres          dw ? ;Vertical resolution viomi_fmt_ID        db ? ;Attribute format viomi_attrib        db ? ;Number of attributes viomi_buf_addr      dd ? ; viomi_buf_length     dd ? ; viomi_full_length    dd ? ; viomi_partial_length dd ? ; viomi_ext_data_addr  dd ? ; VIOMODEINFO ends

EXTRN VioGetMode:FAR INCL_VIO           EQU 1

PUSH@ OTHER   ModeData      ;Mode characteristics PUSH  WORD    VioHandle     ;Vio handle CALL  VioGetMode

Returns WORD 