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x11: typedef GdkX11Display to GdkDisplay

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This is for compatibility reasons. We want to change APIs that operate
on X11 objects to take the X11 objects as arguments. However, this would
break a lot of APIs and we'd like to avoid this, so we play this little
trick (we will use the same trick for the other X11 objects). Also,
gobject-introspection and other bindings can correctly attach the
functions to the correct types as it is the same scheme that GDK2 used
for pixmaps, windows and drawables.

For GTK 4, we will remove this trick, so apps should properly cast their
objects right now.
Unfortunately, I don't think there is a way to use
GDK_DISABLE_DEPRECATED or similar macros to check for proper type casts
while compiling ensure compatibility with future GDK versions. I'm free
to consider them though.
This commit is contained in:
Benjamin Otte 2010-12-20 23:43:04 +01:00 committed by Matthias Clasen
parent eba4529246
commit 4848bf2719
1 changed files with 4 additions and 0 deletions
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4
gdk/x11/gdkx11display.h
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@ -38,7 +38,11 @@
G_BEGIN_DECLS
#ifdef GDK_COMPILATION
typedef struct _GdkX11Display GdkX11Display;
#else
typedef GdkDisplay GdkX11Display;
#endif
typedef struct _GdkX11DisplayClass GdkX11DisplayClass;
#define GDK_TYPE_X11_DISPLAY (gdk_x11_display_get_type())