public static string getFileName()
{
OFN ofn = new OFN()
{
lStructSize = Marshal.SizeOf <OFN>(),
lpstrFilter = "All supported files\0*.mp4;*.mpeg4;*.mkv\0MPEG-4 part 12 files\0*.mp4;*.mpeg4\0Matroska multimedia files\0*.mkv\0\0",
lpstrTitle = "Pick a media file to play",
Flags = eFlags.Explorer | eFlags.FileMustExist | eFlags.PathMustExist,
};
ofn.nMaxFile = MAX_PATH;
Span <char> buffer = stackalloc char[MAX_PATH + 1];
buffer[MAX_PATH] = '\0';
unsafe
{
fixed(char *ptr = buffer)
{
ofn.lpstrFile = (IntPtr)ptr;
bool picked = GetOpenFileNameW(ref ofn);
if (!picked)
{
return(null);
}
}
}
int length = buffer.IndexOf('\0');
return(new string( buffer.Slice(0, length)));
}
static extern bool GetOpenFileNameW([In] ref OFN ofn);