public static extern IntPtr CreateFileDialog(
IntPtr title,
IntPtr parent,
GtkFileChooserAction action,
IntPtr firstButtonText,
GtkResponseType firstButtonResponse,
IntPtr secondButtonText,
GtkResponseType secondButtonResponse,
IntPtr terminator);
private DialogResult MapResult(GtkResponseType result)
{
switch (result)
{
case GtkResponseType.Ok:
return(DialogResult.Ok);
case GtkResponseType.Cancel:
return(DialogResult.Cancel);
case GtkResponseType.Yes:
return(DialogResult.Yes);
case GtkResponseType.No:
return(DialogResult.No);
default:
return(DialogResult.None);
}
}
private DialogResult MapResult(GtkResponseType result)
{
switch (result)
{
case GtkResponseType.Accept:
case GtkResponseType.Ok:
case GtkResponseType.Yes:
case GtkResponseType.Apply:
return(DialogResult.Ok);
case GtkResponseType.Reject:
case GtkResponseType.Cancel:
case GtkResponseType.Close:
case GtkResponseType.No:
return(DialogResult.Cancel);
default:
return(DialogResult.None);
}
}
static extern IntPtr gtk_file_chooser_dialog_new([MarshalAs(UnmanagedType.LPUTF8Str)] string title,
IntPtr parent, GtkFileChooserAction action,
[MarshalAs(UnmanagedType.LPUTF8Str)] string btn1, GtkResponseType resp1,
[MarshalAs(UnmanagedType.LPUTF8Str)] string btn2, GtkResponseType res2,
IntPtr terminatingNull);
public static string getFileName()
{
byte[] cmdLine = File.ReadAllBytes($"/proc/{ Process.GetCurrentProcess().Id }/cmdline");
Span <byte> span = stackalloc byte[cmdLine.Length + 1];
cmdLine.AsSpan().CopyTo(span);
span[cmdLine.Length] = 0;
unsafe
{
fixed(byte *p = span)
{
IntPtr pointer = (IntPtr)p;
IntPtr doublePointer = (IntPtr)(&pointer);
int argc = 1;
gtk_init(ref argc, ref doublePointer);
}
}
// https://developer.gnome.org/gtk3/stable/GtkFileChooserDialog.html#gtk-file-chooser-dialog-new
IntPtr dialog = gtk_file_chooser_dialog_new("Pick a media file to play",
IntPtr.Zero,
GtkFileChooserAction.Open,
"_Cancel",
GtkResponseType.Cancel,
"_Open",
GtkResponseType.Accept,
IntPtr.Zero);
if (IntPtr.Zero == dialog)
{
// Console.WriteLine( "gtk_file_chooser_dialog_new failed" );
return(null);
}
g_object_ref_sink(dialog);
try
{
IntPtr chooser = g_type_check_instance_cast(dialog, gtk_file_chooser_get_type());
setupFilters(chooser);
GtkResponseType res = gtk_dialog_run(dialog);
if (res != GtkResponseType.Accept)
{
return(null);
}
IntPtr u8 = gtk_file_chooser_get_filename(chooser);
string str = Marshal.PtrToStringUTF8(u8);
return(str);
}
finally
{
gtk_widget_destroy(dialog);
g_object_unref(dialog);
// GTK's version of DestroyWindow is asynchronous.
// Unless dispatching some final messages, the window stays on the screen in some weird state.
// Attempting to close brings a message from Linux telling me my software is broken, with a helpful option to kill the complete process.
while (gtk_events_pending())
{
gtk_main_iteration();
}
}
}
gtk_dialog_add_button(IntPtr raw, Utf8Buffer button_text, GtkResponseType response_id);