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-rw-r--r--src/Fl_PNG_Image.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Fl_PNG_Image.cxx b/src/Fl_PNG_Image.cxx
index 5efe6857f..2a6d0ebc6 100644
--- a/src/Fl_PNG_Image.cxx
+++ b/src/Fl_PNG_Image.cxx
@@ -98,7 +98,7 @@ Fl_PNG_Image::Fl_PNG_Image(const char *png) // I - File to read
else
channels = 1;
- int num_trans;
+ int num_trans = 0;
png_get_tRNS(pp, info, 0, &num_trans, 0);
if ((png_get_color_type(pp, info) & PNG_COLOR_MASK_ALPHA) || (num_trans != 0))
channels ++;