4 references to IsNull
PresentationCore (4)
MS\Internal\Shaping\OpenTypeLayout.cs (4)
369
if (!gsubScript.IsNull && !gsubScript.FindLangSys(gsubTable,LangSysTag).
IsNull
)
387
if (!gposScript.IsNull && !gposScript.FindLangSys(gposTable,LangSysTag).
IsNull
)
897
if (LangSys.
IsNull
) {return OpenTypeLayoutResult.LangSysNotFound;}
974
if (LangSys.
IsNull
) {return OpenTypeLayoutResult.LangSysNotFound;}