The number of margins can be changed with SCI_SETMARGINS.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/EditView.cxx b/src/EditView.cxx
index 074c23fc9..92c341d8f 100644
--- a/src/EditView.cxx
+++ b/src/EditView.cxx
@@ -1982,9 +1982,9 @@ long EditView::FormatRange(bool draw, Sci_RangeToFormat *pfr, Surface *surface,
 	// Modify the view style for printing as do not normally want any of the transient features to be printed
 	// Printing supports only the line number margin.
 	int lineNumberIndex = -1;
-	for (int margin = 0; margin <= SC_MAX_MARGIN; margin++) {
+	for (size_t margin = 0; margin < vs.ms.size(); margin++) {
 		if ((vsPrint.ms[margin].style == SC_MARGIN_NUMBER) && (vsPrint.ms[margin].width > 0)) {
-			lineNumberIndex = margin;
+			lineNumberIndex = static_cast<int>(margin);
 		} else {
 			vsPrint.ms[margin].width = 0;
 		}