重新改进支持Qt4.6-Qt6.1

3rd_smtpclient/mimeattachment.h

@@ -0,0 +1,20 @@
+#ifndef MIMEATTACHMENT_H
+#define MIMEATTACHMENT_H
+
+#include <QFile>
+#include "mimepart.h"
+#include "mimefile.h"
+
+class MimeAttachment : public MimeFile
+{
+	Q_OBJECT
+public:
+	MimeAttachment(QFile *file);
+	~MimeAttachment();
+
+protected:
+	virtual void prepare();
+
+};
+
+#endif // MIMEATTACHMENT_H