+ ScrollMinX = (int)(DisplayMinX - 0.5) * BaseWidth;
+ ScrollMinY = (int)(DisplayMinY - 0.5) * BaseWidth;
+ ScrollMaxX = (int)(DisplayMaxX + 1.5) * BaseWidth - SXSIZE;
+ ScrollMaxY = (int)(DisplayMaxY + 1.5) * BaseWidth - SYSIZE;
+#endif
+
+#if 1
+ printf("::: (%ld, %ld), (%ld, %ld) -> (%d, %d), (%d, %d)\n",
+ DisplayMinX, DisplayMinY, DisplayMaxX, DisplayMaxY,
+ ScrollMinX, ScrollMinY, ScrollMaxX, ScrollMaxY);