X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/903506828b7d042350eae97b5014a63ffca17ef5..1d7609197ed33bc76c8212705f305fe7cc33d62f:/src/common/imagtiff.cpp

diff --git a/src/common/imagtiff.cpp b/src/common/imagtiff.cpp
index 0c741c92c1..16c952d297 100644
--- a/src/common/imagtiff.cpp
+++ b/src/common/imagtiff.cpp
@@ -370,11 +370,11 @@ bool wxTIFFHandler::DoCanRead( wxInputStream& stream )
 {
     unsigned char hdr[2];
 
-    stream.Read(&hdr, 2);
-    stream.SeekI(-2, wxFromCurrent);
+    if ( !stream.Read(&hdr, WXSIZEOF(hdr)) )
+        return FALSE;
 
-    return ((hdr[0] == 0x49 && hdr[1] == 0x49) ||
-            (hdr[0] == 0x4D && hdr[1] == 0x4D));
+    return (hdr[0] == 'I' && hdr[1] == 'I') ||
+           (hdr[0] == 'M' && hdr[1] == 'M');
 }