Mark getPointColor as const.

[graphlib.git] / DrawingWindow.cpp

diff --git a/DrawingWindow.cpp b/DrawingWindow.cpp
index f68f43b..dac4246 100644 (file)
--- a/DrawingWindow.cpp
+++ b/DrawingWindow.cpp
@@ -607,7 +607,7 @@ void DrawingWindow::drawTextBg(int x, int y, const std::string &text, int flags)
  *
  * \see setColor(unsigned int), setBgColor(unsigned int)
  */
-unsigned int DrawingWindow::getPointColor(int x, int y)
+unsigned int DrawingWindow::getPointColor(int x, int y) const
 {
     return image->pixel(x, y);
 }