diff --git a/lib/include/DOtherSide/DOtherSide.h b/lib/include/DOtherSide/DOtherSide.h
index 9cabc6b..5673a3b 100644
--- a/lib/include/DOtherSide/DOtherSide.h
+++ b/lib/include/DOtherSide/DOtherSide.h
@@ -129,7 +129,7 @@ DOS_API void DOS_CALL dos_qqmlapplicationengine_delete(DosQQmlApplicationEngine
 /// \brief Create a new QQuickImageProvider
 /// \return A new QQuickImageProvider
 /// \note The returned QQuickImageProvider should be freed by using dos_qquickimageprovider_delete(DosQQuickImageProvider*) unless the QQuickImageProvider has been bound to a QQmlApplicationEngine
-DOS_API DosQQuickImageProvider *DOS_CALL dos_qquickimageprovider_create(PixmapCallback callback);
+DOS_API DosQQuickImageProvider *DOS_CALL dos_qquickimageprovider_create(RequestPixmapCallback callback);
 /// \breif Frees a QQuickImageProvider
 DOS_API void DOS_CALL dos_qquickimageprovider_delete(DosQQuickImageProvider *vptr);
 /// @}
diff --git a/lib/include/DOtherSide/DOtherSideTypes.h b/lib/include/DOtherSide/DOtherSideTypes.h
index ea4a6d0..ae51dc4 100644
--- a/lib/include/DOtherSide/DOtherSideTypes.h
+++ b/lib/include/DOtherSide/DOtherSideTypes.h
@@ -73,10 +73,10 @@ typedef void DosPixmap;
 /// \param height pointer to the height of the image
 /// \param requestedHeight sourceSize.height attribute
 /// \param requestedWidth sourcesSize.width attribute
-/// \param the returned DosPixmap will be deleted by the library itself
+/// \param[out] result The result QPixmap. This should be assigned from the binded language
 /// \note \p id is the trailing part of an image source url for example "image://<provider_id>/<id>
-typedef DosPixmap* (DOS_CALL *PixmapCallback)(const char *id, int *width, int *height, int requestedWidth, int requestedHeight);
-
+/// \note The \p result arg is an out parameter so it \b shouldn't be deleted. See the dos_qpixmap_assign
+typedef void (DOS_CALL *RequestPixmapCallback)(const char *id, int *width, int *height, int requestedWidth, int requestedHeight, DosPixmap* result);
 
 /// Called when a property is readed/written or a slot should be executed
 /// \param self The pointer of QObject in the binded language
@@ -96,7 +96,7 @@ typedef void (DOS_CALL *DObjectCallback)(void *self, DosQVariant *slotName, int
 /// \param index The parent DosQModelIndex
 /// \param[out] result The rowCount result. This must be deferenced and filled from the binded language
 /// \note The \p parent QModelIndex is owned by the DOtherSide library thus it \b shouldn't be deleted
-/// \note The \p result arg is an out parameter so it should be deleted
+/// \note The \p result arg is an out parameter so it \b shouldn't be deleted
 typedef void (DOS_CALL *RowCountCallback)(void *self, const DosQModelIndex *parent, int *result);
 
 /// Called when the QAbstractItemModel::columnCount method must be executed
@@ -104,7 +104,7 @@ typedef void (DOS_CALL *RowCountCallback)(void *self, const DosQModelIndex *pare
 /// \param index The parent DosQModelIndex
 /// \param[out] result The rowCount result. This must be deferenced and filled from the binded language
 /// \note The \p parent QModelIndex is owned by the DOtherSide library thus it \b shouldn't be deleted
-/// \note The \p result arg is an out parameter so it should be deleted
+/// \note The \p result arg is an out parameter so it \b shouldn't be deleted
 typedef void (DOS_CALL *ColumnCountCallback)(void *self, const DosQModelIndex *parent, int *result);
 
 /// Called when the QAbstractItemModel::data method must be executed
@@ -112,7 +112,7 @@ typedef void (DOS_CALL *ColumnCountCallback)(void *self, const DosQModelIndex *p
 /// \param index The DosQModelIndex to which we request the data
 /// \param[out] result The DosQVariant result. This must be deferenced and filled from the binded language.
 /// \note The \p index QModelIndex is owned by the DOtherSide library thus it \b shouldn't be deleted
-/// \note The \p result arg is an out parameter so it should be deleted
+/// \note The \p result arg is an out parameter so it \b shouldn't be deleted
 typedef void (DOS_CALL *DataCallback)(void *self, const DosQModelIndex *index, int role, DosQVariant *result);
 
 /// Called when the QAbstractItemModel::setData method must be executed
diff --git a/lib/include/DOtherSide/DosQQuickImageProvider.h b/lib/include/DOtherSide/DosQQuickImageProvider.h
index 748f67f..e1ff5b9 100644
--- a/lib/include/DOtherSide/DosQQuickImageProvider.h
+++ b/lib/include/DOtherSide/DosQQuickImageProvider.h
@@ -12,9 +12,10 @@
 class DosImageProvider : public QQuickImageProvider
 {
 public:
-    DosImageProvider(PixmapCallback callback);
-    QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize);
+    DosImageProvider(RequestPixmapCallback callback);
+
+    QPixmap requestPixmap(const QString &id, QSize *size, const QSize &requestedSize) override;
 
 private:
-    PixmapCallback m_pixmap_callback;
+    RequestPixmapCallback m_pixmap_callback;
 };
diff --git a/lib/src/DOtherSide.cpp b/lib/src/DOtherSide.cpp
index 442b6e0..10b7d6d 100644
--- a/lib/src/DOtherSide.cpp
+++ b/lib/src/DOtherSide.cpp
@@ -151,7 +151,7 @@ void dos_qqmlapplicationengine_delete(::DosQQmlApplicationEngine *vptr)
 }
 
 
-::DosQQuickImageProvider *dos_qquickimageprovider_create(PixmapCallback callback)
+::DosQQuickImageProvider *dos_qquickimageprovider_create(RequestPixmapCallback callback)
 {
     return new DosImageProvider(callback);
 }
diff --git a/lib/src/DosQQuickImageProvider.cpp b/lib/src/DosQQuickImageProvider.cpp
index 6d21879..2b66996 100644
--- a/lib/src/DosQQuickImageProvider.cpp
+++ b/lib/src/DosQQuickImageProvider.cpp
@@ -1,14 +1,13 @@
 #include "DOtherSide/DosQQuickImageProvider.h"
 
-DosImageProvider::DosImageProvider(PixmapCallback callback) : QQuickImageProvider(QQuickImageProvider::Pixmap),
+DosImageProvider::DosImageProvider(RequestPixmapCallback callback) : QQuickImageProvider(QQuickImageProvider::Pixmap),
                                                               m_pixmap_callback(callback)
 {
 }
 
 QPixmap DosImageProvider::requestPixmap(const QString &id, QSize *size, const QSize &requestedSize)
 {
-    auto pixmap = m_pixmap_callback(id.toLatin1().data(), &size->rwidth(), &size->rheight(), size->width(), size->height());
-    auto pixmap_copy = *(static_cast<QPixmap*>(pixmap));
-    delete (static_cast<QPixmap*>(pixmap));
-    return pixmap_copy;
+    QPixmap result;
+    m_pixmap_callback(id.toLatin1().data(), &size->rwidth(), &size->rheight(), size->width(), size->height(), &result);
+    return result;
 }