private protected override bool RunFileDialog(NativeMethods.OPENFILENAME_I ofn)
{
bool result = UnsafeNativeMethods.GetSaveFileName(ofn);
if (!result)
{
// Something may have gone wrong - check for error condition
switch (Comdlg32.CommDlgExtendedError())
{
case Comdlg32.FNERR.INVALIDFILENAME:
throw new InvalidOperationException(string.Format(SR.FileDialogInvalidFileName, FileName));
}
}
return(result);
}
protected unsafe override bool RunDialog(IntPtr hwndOwner)
{
var hookProcPtr = new User32.WNDPROCINT(HookProc);
var cc = new Comdlg32.CHOOSECOLORW
{
lStructSize = (uint)Marshal.SizeOf <Comdlg32.CHOOSECOLORW>()
};
IntPtr custColorPtr = Marshal.AllocCoTaskMem(64);
try
{
Marshal.Copy(_customColors, 0, custColorPtr, 16);
cc.hwndOwner = hwndOwner;
cc.hInstance = Instance;
cc.rgbResult = ColorTranslator.ToWin32(_color);
cc.lpCustColors = custColorPtr;
Comdlg32.CC flags = (Comdlg32.CC)Options | Comdlg32.CC.RGBINIT | Comdlg32.CC.ENABLEHOOK;
// Our docs say AllowFullOpen takes precedence over FullOpen; ChooseColor implements the opposite
if (!AllowFullOpen)
{
flags &= ~Comdlg32.CC.FULLOPEN;
}
cc.Flags = flags;
cc.lpfnHook = hookProcPtr;
if (!Comdlg32.ChooseColorW(ref cc).IsTrue())
{
return(false);
}
if (cc.rgbResult != ColorTranslator.ToWin32(_color))
{
_color = ColorTranslator.FromOle(cc.rgbResult);
}
Marshal.Copy(custColorPtr, _customColors, 0, 16);
return(true);
}
finally
{
Marshal.FreeCoTaskMem(custColorPtr);
}
}
/// <summary>
/// Displays the "open file" dialog and returns the selected path name.
/// </summary>
/// <param name="title">Title of dialog.</param>
/// <param name="directory">Default directory of dialog.</param>
/// <param name="filter">Filter of dialog; example "Image(*.jpg;*.png)\0*.jpg;*.png".</param>
/// <returns>The path of selected file.</returns>
public static string OpenFileDialog(string title, string directory, string filter)
{
var ofn = new OpenFileName
{
lpstrTitle = title,
lpstrInitialDir = directory,
lpstrFilter = filter,
nMaxFile = 256,
flags = OFNFlags.OFN_EXPLORER | OFNFlags.OFN_FILEMUSTEXIST | OFNFlags.OFN_PATHMUSTEXIST | OFNFlags.OFN_NOCHANGEDIR
};
ofn.lStructSize = Marshal.SizeOf(ofn);
if (Comdlg32.GetOpenFileName(ofn))
{
return(ofn.lpstrFile);
}
return(string.Empty);
}
/// <summary>
/// Displays a file open dialog.
/// </summary>
private protected override bool RunFileDialog(NativeMethods.OPENFILENAME_I ofn)
{
bool result = UnsafeNativeMethods.GetOpenFileName(ofn);
if (!result)
{
// Something may have gone wrong - check for error condition
switch (Comdlg32.CommDlgExtendedError())
{
case Comdlg32.FNERR.INVALIDFILENAME:
throw new InvalidOperationException(string.Format(SR.FileDialogInvalidFileName, FileName));
case Comdlg32.FNERR.SUBCLASSFAILURE:
throw new InvalidOperationException(SR.FileDialogSubLassFailure);
case Comdlg32.FNERR.BUFFERTOOSMALL:
throw new InvalidOperationException(SR.FileDialogBufferTooSmall);
}
}
return(result);
}
private void AttachImage()
{
if (this.CurrentInputDescription.AttachedImage != null)
{
this.CurrentInputDescription.AttachedImage = null;
}
else
{
var ofn = new Comdlg32.OPENFILENAME();
var hwndsrc = (HwndSource)HwndSource.FromVisual(Application.Current.MainWindow);
ofn.lStructSize = (UInt32)Marshal.SizeOf(ofn);
ofn.hwndOwner = hwndsrc.Handle;
ofn.lpstrFilter = "画像ファイル(*.jpg;*.png;*.gif;*.bmp)\0*.jpg;*.png;*.gif;*.bmp\0すべてのファイル(*.*)\0*.*\0";
ofn.lpstrFile = new string('\0', 1024);
ofn.nMaxFile = 1024;
ofn.lpstrTitle = "添付する画像を選択";
ofn.Flags = Comdlg32.OFN_HIDEREADONLY | Comdlg32.OFN_DONTADDTORECENT | Comdlg32.OFN_FILEMUSTEXIST | Comdlg32.OFN_NODEREFERENCELINKS | Comdlg32.OFN_NOTESTFILECREATE | Comdlg32.OFN_PATHMUSTEXIST;
var ret = Comdlg32.GetOpenFileName(ofn);
if (ret)
{
AttachImage(ofn.lpstrFile);
}
}
}
public static bool OpenSaveFileDialog(SaveFileDialogOptions options, out string fileName)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
string lpstrFilter;
if (options.Filters.Count > 0)
{
var builder = new StringBuilder();
foreach ((string key, string value) in options.Filters)
{
builder.Append(key);
builder.Append('\0');
builder.Append(value);
builder.Append('\0');
}
lpstrFilter = builder.ToString();
}
else
{
lpstrFilter = null;
}
var buffer = new char[1024];
options.FileName?.CopyTo(0, buffer, 0, Math.Min(options.FileName.Length, 1024));
GCHandle handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
try
{
var arg = new Comdlg32.LPOPENFILENAMEW
{
lStructSize = (uint)Marshal.SizeOf <Comdlg32.LPOPENFILENAMEW>(),
hwndOwner = IntPtr.Zero,
hInstance = IntPtr.Zero,
lpstrFilter = lpstrFilter,
lpstrCustomFilter = null,
nMaxCustFilter = 0,
nFilterIndex = 0,
lpstrFile = handle.AddrOfPinnedObject(),
nMaxFile = 1024,
lpstrFileTitle = null,
nMaxFileTitle = 0,
lpstrInitialDir = null,
lpstrTitle = null,
Flags = Comdlg32.OFN_PATHMUSTEXIST | Comdlg32.OFN_OVERWRITEPROMPT,
nFileOffset = 0,
nFileExtension = 0,
lpstrDefExt = options.DefaultExtension,
lCustData = IntPtr.Zero,
lpfnHook = IntPtr.Zero,
lpTemplateName = null,
//lpEditInfo = IntPtr.Zero,
//lpstrPrompt = null,
pvReserved = IntPtr.Zero,
dwReserved = 0,
FlagsEx = 0
};
if (Comdlg32.GetSaveFileNameW(ref arg))
{
fileName = new string(buffer, 0, Array.IndexOf(buffer, '\0'));
return(true);
}
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
}
//uint error = Comdlg32.CommDlgExtendedError();
fileName = null;
return(false);
}
