/// <summary>
/// Select file.
/// </summary>
/// <param name="owner">The owner.</param>
/// <param name="multiSelect">can select multiple file</param>
/// <param name="filterList">Filter list£¬odd is display name, even is comma seperated fileter list.</param>
/// <param name="fileName">Default file name.</param>
/// <param name="style">The style.</param>
/// <returns></returns>
public static string[] OpenFile(Window owner, bool multiSelect, string[] filterList, string fileName, DlgStyle style)
{
var info = new LPOPENFILENAME();
if (owner == null)
{
owner = ZHApp.FrameworkMainWindow;
}
if (owner != null)
{
var wih = new WindowInteropHelper(owner);
info.hwndOwner = wih.Handle;
}
if (filterList != null)
{
int r;
Math.DivRem(filterList.Length, 2, out r);
if (r != 0 || filterList.Length == 0)
{
filterList = ALL_FILES;
}
}
if (filterList == null)
{
filterList = ALL_FILES;
}
info.lpstrFilter = string.Join("\0", filterList) + "\0\0";
info.nFilterIndex = 1;
info.lpstrFile = Marshal.StringToHGlobalUni((fileName ?? string.Empty).PadRight(1024, (char)0));
info.nMaxFile = 1024;
info.Flags = (multiSelect ? 0x200 : 0) | 0x00200000 | 0x00020000 | 0x00000800 | 0x00800000 | (int)style;
info.lStructSize = Marshal.SizeOf(typeof(LPOPENFILENAME));
try
{
if (GetOpenFileNameW(ref info))
{
if (style == DlgStyle.Win95)
{
var bytes = new List <byte>(2000);
for (int i = 0; i < 1024 * 2; i += 2)
{
var l = Marshal.ReadByte(info.lpstrFile, i);
var h = Marshal.ReadByte(info.lpstrFile, i + 1);
if (l == 0 && h == 0)
{
break;
}
bytes.Add(l);
bytes.Add(h);
}
var lpstrFile = Encoding.Unicode.GetString(bytes.ToArray());
if (multiSelect)
{
var ary = lpstrFile.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (ary.Length == 1)
{
return(ary);
}
var ret = new string[ary.Length - 1];
for (int i = 1; i < ary.Length; i++)
{
ret[i - 1] = System.IO.Path.Combine(ary[0], ary[i]);
}
return(ret);
}
else
{
return(new string[1] {
lpstrFile
});
}
}
else
{
if (multiSelect)
{
var bytes = new List <byte>(2000);
int pl = -1, ph = -1;
for (int i = 0; i < 1024 * 2; i += 2)
{
var l = Marshal.ReadByte(info.lpstrFile, i);
var h = Marshal.ReadByte(info.lpstrFile, i + 1);
if (l == 0 && h == 0 && pl == 0 && ph == 0)
{
break;
}
pl = l; ph = h;
bytes.Add(l);
bytes.Add(h);
}
var lpstrFile = Encoding.Unicode.GetString(bytes.ToArray());
var ary = lpstrFile.Split(new[] { (char)0 }, StringSplitOptions.RemoveEmptyEntries);
if (ary.Length == 1)
{
return(ary);
}
var ret = new string[ary.Length - 1];
for (int i = 1; i < ary.Length; i++)
{
ret[i - 1] = System.IO.Path.Combine(ary[0], ary[i]);
}
return(ret);
}
else
{
var bytes = new List <byte>(2000);
for (int i = 0; i < 1024 * 2; i += 2)
{
var l = Marshal.ReadByte(info.lpstrFile, i);
var h = Marshal.ReadByte(info.lpstrFile, i + 1);
if (l == 0 && h == 0)
{
break;
}
bytes.Add(l);
bytes.Add(h);
}
var lpstrFile = Encoding.Unicode.GetString(bytes.ToArray());
return(new string[1] {
lpstrFile
});
}
}
}
Marshal.FreeHGlobal(info.lpstrFile);
return(new string[0]);
}
catch
{
Marshal.FreeHGlobal(info.lpstrFile);
return(new string[0]);
}
}
static extern bool GetOpenFileNameW(ref LPOPENFILENAME lpofn);
