mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2025-01-10 12:40:10 +00:00
517ec1112c
The source does nothing but run PeekMessage() + DispatchMessage(). But we need it in every thread where we want to use a main loop. No users yet.
123 lines
2.7 KiB
C
123 lines
2.7 KiB
C
#include "config.h"
|
|
|
|
#include "gdkwin32messagesourceprivate.h"
|
|
|
|
#include "gdkevents.h"
|
|
|
|
#include <windows.h>
|
|
|
|
typedef struct _GdkWin32MessageSource GdkWin32MessageSource;
|
|
|
|
struct _GdkWin32MessageSource
|
|
{
|
|
GSource source;
|
|
|
|
GPollFD poll_fd;
|
|
} ;
|
|
|
|
static gboolean
|
|
gdk_win32_message_source_prepare (GSource *source,
|
|
int *timeout)
|
|
{
|
|
GdkWin32MessageSource *self = (GdkWin32MessageSource *) source;
|
|
gboolean retval;
|
|
|
|
*timeout = -1;
|
|
|
|
return GetQueueStatus (QS_ALLINPUT) != 0;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_win32_message_source_check (GSource *source)
|
|
{
|
|
GdkWin32MessageSource *self = (GdkWin32MessageSource *) source;
|
|
|
|
self->poll_fd.revents = 0;
|
|
|
|
return GetQueueStatus (QS_ALLINPUT) != 0;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_win32_message_source_dispatch (GSource *source,
|
|
GSourceFunc callback,
|
|
gpointer user_data)
|
|
{
|
|
MSG msg;
|
|
|
|
while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
|
|
{
|
|
TranslateMessage (&msg);
|
|
DispatchMessage (&msg);
|
|
}
|
|
|
|
return G_SOURCE_CONTINUE;
|
|
}
|
|
|
|
static void
|
|
gdk_win32_message_source_finalize (GSource *source)
|
|
{
|
|
#ifdef G_WITH_CYGWIN
|
|
close (self->poll_fd.fd);
|
|
#endif
|
|
}
|
|
|
|
static GSourceFuncs gdk_win32_message_source_funcs = {
|
|
gdk_win32_message_source_prepare,
|
|
gdk_win32_message_source_check,
|
|
gdk_win32_message_source_dispatch,
|
|
gdk_win32_message_source_finalize,
|
|
};
|
|
|
|
/*
|
|
* gdk_win32_message_source_new:
|
|
*
|
|
* Creates a new source for processing events of the Windows main loop.
|
|
*
|
|
* Returns: The new source
|
|
*/
|
|
GSource *
|
|
gdk_win32_message_source_new (void)
|
|
{
|
|
GdkWin32MessageSource *self;
|
|
GSource *source;
|
|
|
|
source = g_source_new (&gdk_win32_message_source_funcs, sizeof (GdkWin32MessageSource));
|
|
g_source_set_static_name (source, "GDK Win32 message source");
|
|
g_source_set_priority (source, GDK_PRIORITY_EVENTS);
|
|
|
|
self = (GdkWin32MessageSource *) source;
|
|
#ifdef G_WITH_CYGWIN
|
|
self->poll_fd.fd = open ("/dev/windows", O_RDONLY);
|
|
if (self->poll_fd.fd == -1)
|
|
g_error ("can't open \"/dev/windows\": %s", g_strerror (errno));
|
|
#else
|
|
self->poll_fd.fd = G_WIN32_MSG_HANDLE;
|
|
#endif
|
|
self->poll_fd.events = G_IO_IN;
|
|
|
|
g_source_add_poll (source, &self->poll_fd);
|
|
g_source_set_can_recurse (source, TRUE);
|
|
|
|
return source;
|
|
}
|
|
|
|
/*
|
|
* gdk_win32_message_source_add:
|
|
* @context: (nullable): The context to add the source to
|
|
*
|
|
* Adds a message source to the default main context.
|
|
*
|
|
* Returns: the ID (greater than 0) of the event source.
|
|
*/
|
|
guint
|
|
gdk_win32_message_source_add (GMainContext *context)
|
|
{
|
|
GSource *source;
|
|
guint id;
|
|
|
|
source = gdk_win32_message_source_new ();
|
|
id = g_source_attach (source, context);
|
|
g_source_unref (source);
|
|
|
|
return id;
|
|
} |