Export Image::Data in the public API

It's necessary because Image's destructor is generated by the compiler,
and also in case a user wants to define their own image loader.

diff --git a/source/graphics/image.h b/source/graphics/image.h
index 15685c606e98353bf92d00c701c8f756f00b1fe2..6f90250111d53f465400e20557ea0de6d81791cd 100644 (file)
--- a/source/graphics/image.h
+++ b/source/graphics/image.h
@@ -15,7 +15,7 @@ class ImageLoader;
 class MSPGUI_API Image
 {
 public:
-       struct Data
+       struct MSPGUI_API Data
        {
                PixelFormat fmt = RGB;
                unsigned width = 0;