msi: Fix calculation of required buffer size in MsiSummaryInfoGetPropertyW.

e58ebbf3 · Hans Leidekker · Alexandre Julliard · 0f127fc7 · e58ebbf3
Commit e58ebbf3 authored Oct 23, 2009 by Hans Leidekker Committed by Alexandre Julliard Oct 23, 2009
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suminfo.c dlls/msi/suminfo.c +2 -3

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--- a/dlls/msi/suminfo.c
+++ b/dlls/msi/suminfo.c
@@ -607,9 +607,8 @@ static UINT get_prop( MSIHANDLE handle, UINT uiProperty, UINT *puiDataType,

            if( str->unicode )
            {
-                len = MultiByteToWideChar( CP_ACP, 0, prop->u.pszVal, -1,
-                                           str->str.w, *pcchValueBuf );
-                len--;
+                len = MultiByteToWideChar( CP_ACP, 0, prop->u.pszVal, -1, NULL, 0 ) - 1;
+                MultiByteToWideChar( CP_ACP, 0, prop->u.pszVal, -1, str->str.w, *pcchValueBuf );
            }
            else
            {