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-rw-r--r--plugingui/pixelbuffer.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugingui/pixelbuffer.cc b/plugingui/pixelbuffer.cc
index 5d032b4..15270af 100644
--- a/plugingui/pixelbuffer.cc
+++ b/plugingui/pixelbuffer.cc
@@ -156,7 +156,7 @@ void PixelBufferAlpha::pixel(size_t x, size_t y,
unsigned char* red,
unsigned char* green,
unsigned char* blue,
- unsigned char* alpha)
+ unsigned char* alpha) const
{
assert(x < width);
assert(y < height);