Support display of BMP images on MS-Windows

* src/w32image.c (w32_can_use_native_image_api): Support BMP
images.
* src/image.c (syms_of_image) <Qbmp>: New symbol.
[HAVE_NTGUI]: Add 'bmp' to list of supported image types.

* doc/lispref/display.texi (Image Formats): Document built-in
support for BMP images.

* etc/NEWS: Announce the change.

2 files changed, 3 insertions, 0 deletions

diff --git a/src/image.c b/src/image.c
index c412dc90296..d44d6890846 100644
--- a/src/image.c
+++ b/src/image.c
@@ -11558,6 +11558,8 @@ non-numeric, there is no explicit limit on the size of images.  */);
 # ifdef HAVE_NTGUI
   DEFSYM (Qgdiplus, "gdiplus");
   DEFSYM (Qshlwapi, "shlwapi");
+  DEFSYM (Qbmp, "bmp");
+  add_image_type (Qbmp);
 # endif
 #endif
 
diff --git a/src/w32image.c b/src/w32image.c
index f3374dcfd30..1f7c4921b31 100644
--- a/src/w32image.c
+++ b/src/w32image.c
@@ -253,6 +253,7 @@ w32_can_use_native_image_api (Lisp_Object type)
         || EQ (type, Qpng)
         || EQ (type, Qgif)
         || EQ (type, Qtiff)
+        || EQ (type, Qbmp)
         || EQ (type, Qnative_image)))
     {
       /* GDI+ can also display BMP, Exif, ICON, WMF, and EMF images.