MouGetScaleFact (OS/2 1.x)

This call returns a pair of 1-word scaling factors for the current mouse device.

Syntax
MouGetScaleFact (ScaleStruct, DeviceHandle)

Parameters

 * ScaleStruct (PSCALEFACT) - output: Address of the control block structure that contains the current row and column coordinate scaling factors.
 * See MouSetScaleFact for more information.


 * DeviceHandle (HMOU) - input: Contains the handle of the mouse device obtained from a previous MouOpen.

Return Code

 * rc (USHORT) - return:Return code descriptions are:
 * 0 NO_ERROR
 * 385 ERROR_MOUSE_NO_DEVICE
 * 466 ERROR_MOU_DETACHED
 * 501 ERROR_MOUSE_NO_CONSOLE
 * 505 ERROR_MOU_EXTENDED_SG

Remarks
The units of the scale factor depend on the mode of the display screen for the session. If the screen is operating in text mode, the scaling units are relative to characters. If the screen is operating in graphics mode, the scaling units are relative to pels.

C
 typedef struct _SCALEFACT { /* mousc */ USHORT rowScale;         /* row scaling factor */ USHORT colScale;         /* column coordinate scaling factor */ } SCALEFACT;


 * 1) define INCL_MOU

USHORT rc = MouGetScaleFact(ScaleStruct, DeviceHandle);

PSCALEFACT ScaleStruct;  /* 2-word structure */ HMOU      DeviceHandle;  /* Mouse device handle */

USHORT    rc;            /* return code */ 

MASM
 SCALEFACT struc mousc_rowScale dw  ? ;row scaling factor mousc_colScale dw  ? ;column coordinate scaling factor SCALEFACT ends

EXTRN MouGetScaleFact:FAR INCL_MOU           EQU 1

PUSH@ OTHER   ScaleStruct   ;2-word structure PUSH  WORD    DeviceHandle  ;Mouse device handle CALL  MouGetScaleFact

Returns WORD 