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DCL:GRPH1:SGPACK: User Interface:Explanation of Subroutines: Text Primitives

2.8.3 SGSTXS

1.

Function

Sets the character height of the text drawn by SGTXU, SGTXV, and SGTXR.

2.

Call

CALL SGSTXS(RSIZE)

3.

Explanation of Parameters

RSIZE

(R)

Specifies the character height in units of the VC. (Initial value is 0.05).

4.

Notes

(a)

RSIZE must be larger than 0. When RSIZE is 0, a message is printed, and no other steps are taken.

(b)

The validity of RSIZE is not checked in this routine. It is checked when SGTXU, SGTXV, or SGTXR is called.

(c)

The current character height can be inquired with

CALL SGQTXS(RSIZE)

.