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-rw-r--r--window.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/window.h b/window.h
index 4d99224..01c377d 100644
--- a/window.h
+++ b/window.h
@@ -5,7 +5,10 @@
GtkWidget* createMainWindow();
-void zoomIn();
-void zoomOut();
+
+void zoomIn(double factor, double x, double y);
+void zoomOut(double factor, double x, double y);
+void zoomInCentered(double factor);
+void zoomOutCentered(double factor);
#endif /*WINDOW_H_*/