/// <summary>Initializes a new instance of the <see cref="BROWSEINFO"/> struct.</summary>
/// <param name="hWnd">A handle to the owner window for the dialog box.</param>
/// <param name="rootPidl">A PIDL that specifies the location of the root folder from which to start browsing.</param>
/// <param name="title">The string that is displayed above the tree view control in the dialog box.</param>
/// <param name="flags">Flags that specify the options for the dialog box.</param>
/// <param name="callback">The callback function that the dialog box calls when an event occurs..</param>
/// <param name="displayNameBuffer">Buffer that receives the display name of the folder selected by the user.</param>
public BROWSEINFO(HWND hWnd, IntPtr rootPidl, string title, BrowseInfoFlag flags, BrowseCallbackProc callback, SafeCoTaskMemString displayNameBuffer)
{
hwndOwner = hWnd;
pidlRoot = rootPidl;
pszDisplayName = (IntPtr)displayNameBuffer;
lpszTitle = title;
ulFlags = flags;
lpfn = callback;
lParam = IntPtr.Zero;
iImage = 0;
}
protected override bool RunDialog(IntPtr hWndOwner)
{
IntPtr zero = IntPtr.Zero;
bool flag = false;
NativeMethods.SHGetSpecialFolderLocation(hWndOwner, (int)this.rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
NativeMethods.SHGetSpecialFolderLocation(hWndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogNoRootFolder");
}
}
int num = 0x40;
if (!this.showNewFolderButton)
{
num += 0x200;
}
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
NativeMethods.BROWSEINFO lpbi = new NativeMethods.BROWSEINFO();
hglobal = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
this.callback = new BrowseCallbackProc(this.FolderBrowserDialog_BrowseCallbackProc);
lpbi.pidlRoot = zero;
lpbi.hwndOwner = hWndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.lpszTitle = this.descriptionText;
lpbi.ulFlags = num;
lpbi.lpfn = this.callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
pidl = NativeMethods.SHBrowseForFolder(lpbi);
if (pidl != IntPtr.Zero)
{
NativeMethods.SHGetPathFromIDList(pidl, pszPath);
this.selectedPathNeedsCheck = true;
this.selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
NativeMethods.IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(zero);
if (pidl != IntPtr.Zero)
{
sHMalloc.Free(pidl);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this.callback = null;
}
return(flag);
}
/// <summary>
/// When overridden in a derived class, specifies a common dialog box.
/// </summary>
/// <param name="hwndOwner">A value that represents the window handle of the owner window for the common dialog box.</param>
/// <returns>
/// true if the dialog box was successfully run; otherwise, false.
/// </returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
var zero = IntPtr.Zero;
var flag = false;
SHGetSpecialFolderLocation(hwndOwner, (int)rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
SHGetSpecialFolderLocation(hwndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException(
"Folder Browser Dialog: no root folder");
}
}
if (Control.CheckForIllegalCrossThreadCalls && Application.OleRequired() != ApartmentState.STA)
{
throw new ThreadStateException("Debugging exception only: Thread must be STA");
}
var pidl = IntPtr.Zero;
var hglobal = IntPtr.Zero;
var pszPath = IntPtr.Zero;
try
{
var lpbi = new BROWSEINFO();
hglobal = Marshal.AllocHGlobal(260 * Marshal.SystemDefaultCharSize);
pszPath = Marshal.AllocHGlobal(260 * Marshal.SystemDefaultCharSize);
callback = new BrowseCallbackProc(FolderBrowserDialog_BrowseCallbackProc);
lpbi.pidlRoot = zero;
lpbi.hwndOwner = hwndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.lpszTitle = descriptionText;
lpbi.ulFlags = (int)CreationFlags;
lpbi.lpfn = callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
pidl = SHBrowseForFolder(lpbi);
if (pidl != IntPtr.Zero)
{
SHGetPathFromIDList(pidl, pszPath);
selectedPathNeedsCheck = true;
selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
var sHMalloc = GetSHMalloc();
sHMalloc.Free(zero);
if (pidl != IntPtr.Zero)
{
sHMalloc.Free(pidl);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
callback = null;
}
return(flag);
}
/// <summary></summary>
protected override bool RunDialog(IntPtr hWndOwner)
{
IntPtr zero = IntPtr.Zero;
bool flag = false;
Win32.SHGetSpecialFolderLocation(hWndOwner, (int)this.mRootFolder, ref zero);
if (zero == IntPtr.Zero)
{
Win32.SHGetSpecialFolderLocation(hWndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException("No Root Folder.");
}
}
BrowseInfoFlag flags = BrowseInfoFlag.NewUserInterface;
if (!this.mShowNewFolderButton)
{
flags |= BrowseInfoFlag.NoNewFolderButton;
}
if (this.mIncludeFiles)
{
flags |= BrowseInfoFlag.BrowseEverything;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException("Thread Must Be STA.");
}
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
this.mCurrentCallback = new BrowseCallbackProc(this.FolderBrowserDialog_BrowseCallbackProc);
hglobal = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
BROWSEINFO lpbi = new BROWSEINFO();
lpbi.pidlRoot = zero;
lpbi.hwndOwner = hWndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.lpszTitle = this.mDescriptionText;
lpbi.ulFlags = (int)flags;
lpbi.lpfn = this.mCurrentCallback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
pidl = Win32.SHBrowseForFolder(lpbi);
if (pidl != IntPtr.Zero)
{
Win32.SHGetPathFromIDList(pidl, pszPath);
this.mSelectedPathNeedsCheck = true;
this.mSelectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(zero);
if (pidl != IntPtr.Zero)
{
sHMalloc.Free(pidl);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this.mCurrentCallback = null;
}
return(flag);
}
protected override bool RunDialog(IntPtr hWndOwner)
{
IntPtr zero = IntPtr.Zero;
bool result = false;
SHGetSpecialFolderLocation(hWndOwner, (int)this.rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
SHGetSpecialFolderLocation(hWndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogExNoRootFolder");
}
}
int num = 64;
if (!this.showNewFolderButton)
{
num += 512;
}
if (Control.CheckForIllegalCrossThreadCalls && Application.OleRequired() != ApartmentState.STA)
{
throw new ThreadStateException("ThreadMustBeSTA");
}
IntPtr intPtr = IntPtr.Zero;
IntPtr intPtr2 = IntPtr.Zero;
IntPtr intPtr3 = IntPtr.Zero;
try
{
num |= 0x00000010; // BIF_EDITBOX
num |= 0x00000040; // BIF_NEWDIALOGSTYLE
BROWSEINFO bROWSEINFO = new BROWSEINFO();
intPtr2 = Marshal.AllocHGlobal(260 * Marshal.SystemDefaultCharSize);
intPtr3 = Marshal.AllocHGlobal(260 * Marshal.SystemDefaultCharSize);
this.callback = new BrowseCallbackProc(this.FolderBrowserDialogEx_BrowseCallbackProc);
bROWSEINFO.pidlRoot = zero;
bROWSEINFO.hwndOwner = hWndOwner;
bROWSEINFO.pszDisplayName = intPtr2;
bROWSEINFO.lpszTitle = this.descriptionText;
bROWSEINFO.ulFlags = num;
bROWSEINFO.lpfn = this.callback;
bROWSEINFO.lParam = IntPtr.Zero;
bROWSEINFO.iImage = 0;
intPtr = SHBrowseForFolder(bROWSEINFO);
if (intPtr != IntPtr.Zero)
{
SHGetPathFromIDList(intPtr, intPtr3);
this.selectedPathNeedsCheck = true;
this.selectedPath = Marshal.PtrToStringAuto(intPtr3);
result = true;
}
}
finally
{
CoTaskMemFree(zero);
if (intPtr != IntPtr.Zero)
{
CoTaskMemFree(intPtr);
}
if (intPtr3 != IntPtr.Zero)
{
Marshal.FreeHGlobal(intPtr3);
}
if (intPtr2 != IntPtr.Zero)
{
Marshal.FreeHGlobal(intPtr2);
}
this.callback = null;
}
return(result);
}
/// <summary>
/// When overridden in a derived class, specifies a common dialog box.
/// </summary>
/// <param name="hwndOwner">A value that represents the window handle of the owner window for the common dialog box.</param>
/// <returns>
/// true if the dialog box was successfully run; otherwise, false.
/// </returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
IntPtr zero = IntPtr.Zero;
bool flag = false;
SHGetSpecialFolderLocation(hwndOwner, (int)rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
SHGetSpecialFolderLocation(hwndOwner, 0, ref zero);
if (zero == IntPtr.Zero) throw new InvalidOperationException(
"Folder Browser Dialog: no root folder");
}
//int flags = 0x40;
//if (!showNewFolderButton) flags += 0x200;
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
throw new ThreadStateException("Debugging exception only: Thread must be STA");
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
BROWSEINFO lpbi = new BROWSEINFO();
hglobal = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
callback = new BrowseCallbackProc(FolderBrowserDialog_BrowseCallbackProc);
lpbi.pidlRoot = zero;
lpbi.hwndOwner = hwndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.lpszTitle = descriptionText;
lpbi.ulFlags = (int)flags;
lpbi.lpfn = callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
pidl = SHBrowseForFolder(lpbi);
if (pidl != IntPtr.Zero)
{
SHGetPathFromIDList(pidl, pszPath);
selectedPathNeedsCheck = true;
selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(zero);
if (pidl != IntPtr.Zero) sHMalloc.Free(pidl);
if (pszPath != IntPtr.Zero) Marshal.FreeHGlobal(pszPath);
if (hglobal != IntPtr.Zero) Marshal.FreeHGlobal(hglobal);
callback = null;
}
return flag;
}
protected override bool RunDialog(IntPtr hWndOwner)
{
IntPtr zero = IntPtr.Zero;
bool result = false;
SHGetSpecialFolderLocation(hWndOwner, (int)this.rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
SHGetSpecialFolderLocation(hWndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogExNoRootFolder");
}
}
int num = 64;
if (!this.showNewFolderButton)
{
num += 512;
}
if (Control.CheckForIllegalCrossThreadCalls && Application.OleRequired() != ApartmentState.STA)
{
throw new ThreadStateException("ThreadMustBeSTA");
}
IntPtr intPtr = IntPtr.Zero;
IntPtr intPtr2 = IntPtr.Zero;
IntPtr intPtr3 = IntPtr.Zero;
try
{
num |= 0x00000010; // BIF_EDITBOX
num |= 0x00000040; // BIF_NEWDIALOGSTYLE
BROWSEINFO bROWSEINFO = new BROWSEINFO();
intPtr2 = Marshal.AllocHGlobal(260 * Marshal.SystemDefaultCharSize);
intPtr3 = Marshal.AllocHGlobal(260 * Marshal.SystemDefaultCharSize);
this.callback = new BrowseCallbackProc(this.FolderBrowserDialogEx_BrowseCallbackProc);
bROWSEINFO.pidlRoot = zero;
bROWSEINFO.hwndOwner = hWndOwner;
bROWSEINFO.pszDisplayName = intPtr2;
bROWSEINFO.lpszTitle = this.descriptionText;
bROWSEINFO.ulFlags = num;
bROWSEINFO.lpfn = this.callback;
bROWSEINFO.lParam = IntPtr.Zero;
bROWSEINFO.iImage = 0;
intPtr = SHBrowseForFolder(bROWSEINFO);
if (intPtr != IntPtr.Zero)
{
SHGetPathFromIDList(intPtr, intPtr3);
this.selectedPathNeedsCheck = true;
this.selectedPath = Marshal.PtrToStringAuto(intPtr3);
result = true;
}
}
finally
{
CoTaskMemFree(zero);
if (intPtr != IntPtr.Zero)
{
CoTaskMemFree(intPtr);
}
if (intPtr3 != IntPtr.Zero)
{
Marshal.FreeHGlobal(intPtr3);
}
if (intPtr2 != IntPtr.Zero)
{
Marshal.FreeHGlobal(intPtr2);
}
this.callback = null;
}
return result;
}
