/// <include file='doc\FileDialog.uex' path='docs/doc[@for="FileDialog.GetMultiselectFiles"]/*' />
/// <devdoc>
/// Extracts the filename(s) returned by the file dialog.
/// </devdoc>
private string[] GetMultiselectFiles(CharBuffer charBuffer)
{
string directory = charBuffer.GetString();
string fileName = charBuffer.GetString();
if (fileName.Length == 0)
{
return new string[] {
directory
}
}
;
if (directory[directory.Length - 1] != '\\')
{
directory = directory + "\\";
}
ArrayList names = new ArrayList();
do
{
if (fileName[0] != '\\' && (fileName.Length <= 3 ||
fileName[1] != ':' || fileName[2] != '\\'))
{
fileName = directory + fileName;
}
names.Add(fileName);
fileName = charBuffer.GetString();
} while (fileName.Length > 0);
string[] temp = new string[names.Count];
names.CopyTo(temp, 0);
return(temp);
}
/// <include file='doc\FileDialog.uex' path='docs/doc[@for="FileDialog.RunDialog"]/*' />
/// <devdoc>
/// Implements running of a file dialog.
/// </devdoc>
/// <internalonly/>
protected override bool RunDialog(IntPtr hWndOwner)
{
NativeMethods.WndProc hookProcPtr = new NativeMethods.WndProc(this.HookProc);
NativeMethods.OPENFILENAME_I ofn = new NativeMethods.OPENFILENAME_I();
try {
charBuffer = CharBuffer.CreateBuffer(FILEBUFSIZE);
if (fileNames != null)
{
charBuffer.PutString(fileNames[0]);
}
ofn.lStructSize = Marshal.SizeOf(typeof(NativeMethods.OPENFILENAME_I));
// SECREVIEW : Assert environment so that we can determine
// : the platform that we are running on. We only
// : use the information to change the style of
// : dialog, so it is safe.
//
IntSecurity.UnrestrictedEnvironment.Assert();
try {
// Degrade to the older style dialog if we're not on Win2K.
// We do this by setting the struct size to a different value
//
if (Environment.OSVersion.Platform != System.PlatformID.Win32NT ||
Environment.OSVersion.Version.Major < 5)
{
ofn.lStructSize = 0x4C;
}
}
finally {
CodeAccessPermission.RevertAssert();
}
ofn.hwndOwner = hWndOwner;
ofn.hInstance = Instance;
ofn.lpstrFilter = MakeFilterString(filter);
ofn.nFilterIndex = filterIndex;
ofn.lpstrFile = charBuffer.AllocCoTaskMem();
ofn.nMaxFile = FILEBUFSIZE;
ofn.lpstrInitialDir = initialDir;
ofn.lpstrTitle = title;
ofn.Flags = Options | (NativeMethods.OFN_EXPLORER | NativeMethods.OFN_ENABLEHOOK | NativeMethods.OFN_ENABLESIZING);
ofn.lpfnHook = hookProcPtr;
ofn.FlagsEx = NativeMethods.OFN_USESHELLITEM;
if (defaultExt != null && AddExtension)
{
ofn.lpstrDefExt = defaultExt;
}
return(RunFileDialog(ofn));
}
finally {
charBuffer = null;
if (ofn.lpstrFile != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(ofn.lpstrFile);
}
}
}
