using System;

using System.ComponentModel;

using System.Drawing;

using System.Runtime.ConstrainedExecution;

using System.Runtime.InteropServices;

using System.Windows.Forms;

using Ookii.Dialogs.Interop;

namespace Ookii.Dialogs

{

static class NativeMethods

{

public static bool IsWindowsVistaOrLater

{

get

{

return Environment.OSVersion.Platform == PlatformID.Win32NT && Environment.OSVersion.Version >= new Version(6, 0, 6000);

}

}

public static bool IsWindowsXPOrLater

{

get

{

return Environment.OSVersion.Platform == PlatformID.Win32NT && Environment.OSVersion.Version >= new Version(5, 1, 2600);

}

}

#region LoadLibrary

public const int ErrorFileNotFound = 2;

[DllImport("kernel32", CharSet = CharSet.Unicode, SetLastError = true)]

public static extern SafeModuleHandle LoadLibraryEx(

string lpFileName,

IntPtr hFile,

LoadLibraryExFlags dwFlags

);

[DllImport("kernel32", SetLastError = true),

ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]

[return: MarshalAs(UnmanagedType.Bool)]

public static extern bool FreeLibrary(IntPtr hModule);

[Flags]

public enum LoadLibraryExFlags : uint

{

DontResolveDllReferences = 0x00000001,

LoadLibraryAsDatafile = 0x00000002,

LoadWithAlteredSearchPath = 0x00000008,

LoadIgnoreCodeAuthzLevel = 0x00000010

}

#endregion

#region KnownFolder Definitions

internal enum FFFP_MODE

{

FFFP_EXACTMATCH,

FFFP_NEARESTPARENTMATCH

}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 4)]

internal struct KNOWNFOLDER_DEFINITION

{

internal KF_CATEGORY category;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszName;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszCreator;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszDescription;

internal Guid fidParent;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszRelativePath;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszParsingName;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszToolTip;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszLocalizedName;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszIcon;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszSecurity;

internal uint dwAttributes;

internal KF_DEFINITION_FLAGS kfdFlags;

internal Guid ftidType;

}

internal enum KF_CATEGORY

{

KF_CATEGORY_VIRTUAL = 0x00000001,

KF_CATEGORY_FIXED = 0x00000002,

KF_CATEGORY_COMMON = 0x00000003,

KF_CATEGORY_PERUSER = 0x00000004

}

[Flags]

internal enum KF_DEFINITION_FLAGS

{

KFDF_PERSONALIZE = 0x00000001,

KFDF_LOCAL_REDIRECT_ONLY = 0x00000002,

KFDF_ROAMABLE = 0x00000004,

}

// Property System structs and consts

[StructLayout(LayoutKind.Sequential, Pack = 4)]

internal struct PROPERTYKEY

{

internal Guid fmtid;

internal uint pid;

}

#endregion

#region File Operations Definitions

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 4)]

internal struct COMDLG_FILTERSPEC

{

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszName;

[MarshalAs(UnmanagedType.LPWStr)]

internal string pszSpec;

}

internal enum FDAP

{

FDAP_BOTTOM = 0x00000000,

FDAP_TOP = 0x00000001,

}

internal enum FDE_SHAREVIOLATION_RESPONSE

{

FDESVR_DEFAULT = 0x00000000,

FDESVR_ACCEPT = 0x00000001,

FDESVR_REFUSE = 0x00000002

}

internal enum FDE_OVERWRITE_RESPONSE

{

FDEOR_DEFAULT = 0x00000000,

FDEOR_ACCEPT = 0x00000001,

FDEOR_REFUSE = 0x00000002

}

internal enum SIATTRIBFLAGS

{

SIATTRIBFLAGS_AND = 0x00000001, // if multiple items and the attirbutes together.

SIATTRIBFLAGS_OR = 0x00000002, // if multiple items or the attributes together.

SIATTRIBFLAGS_APPCOMPAT = 0x00000003, // Call GetAttributes directly on the ShellFolder for multiple attributes

}

internal enum SIGDN : uint

{

SIGDN_NORMALDISPLAY = 0x00000000, // SHGDN_NORMAL

SIGDN_PARENTRELATIVEPARSING = 0x80018001, // SHGDN_INFOLDER | SHGDN_FORPARSING

SIGDN_DESKTOPABSOLUTEPARSING = 0x80028000, // SHGDN_FORPARSING

SIGDN_PARENTRELATIVEEDITING = 0x80031001, // SHGDN_INFOLDER | SHGDN_FOREDITING

SIGDN_DESKTOPABSOLUTEEDITING = 0x8004c000, // SHGDN_FORPARSING | SHGDN_FORADDRESSBAR

SIGDN_FILESYSPATH = 0x80058000, // SHGDN_FORPARSING

SIGDN_URL = 0x80068000, // SHGDN_FORPARSING

SIGDN_PARENTRELATIVEFORADDRESSBAR = 0x8007c001, // SHGDN_INFOLDER | SHGDN_FORPARSING | SHGDN_FORADDRESSBAR

SIGDN_PARENTRELATIVE = 0x80080001 // SHGDN_INFOLDER

}

[Flags]

internal enum FOS : uint

{

FOS_OVERWRITEPROMPT = 0x00000002,

FOS_STRICTFILETYPES = 0x00000004,

FOS_NOCHANGEDIR = 0x00000008,

FOS_PICKFOLDERS = 0x00000020,

FOS_FORCEFILESYSTEM = 0x00000040, // Ensure that items returned are filesystem items.

FOS_ALLNONSTORAGEITEMS = 0x00000080, // Allow choosing items that have no storage.

FOS_NOVALIDATE = 0x00000100,

FOS_ALLOWMULTISELECT = 0x00000200,

FOS_PATHMUSTEXIST = 0x00000800,

FOS_FILEMUSTEXIST = 0x00001000,

FOS_CREATEPROMPT = 0x00002000,

FOS_SHAREAWARE = 0x00004000,

FOS_NOREADONLYRETURN = 0x00008000,

FOS_NOTESTFILECREATE = 0x00010000,

FOS_HIDEMRUPLACES = 0x00020000,

FOS_HIDEPINNEDPLACES = 0x00040000,

FOS_NODEREFERENCELINKS = 0x00100000,

FOS_DONTADDTORECENT = 0x02000000,

FOS_FORCESHOWHIDDEN = 0x10000000,

FOS_DEFAULTNOMINIMODE = 0x20000000

}

internal enum CDCONTROLSTATE

{

CDCS_INACTIVE = 0x00000000,

CDCS_ENABLED = 0x00000001,

CDCS_VISIBLE = 0x00000002

}

#endregion

#region Shell Parsing Names

[DllImport("shell32.dll", CharSet = CharSet.Unicode)]

public static extern int SHCreateItemFromParsingName([MarshalAs(UnmanagedType.LPWStr)] string pszPath, IntPtr pbc, ref Guid riid, [MarshalAs(UnmanagedType.Interface)] out object ppv);

public static IShellItem CreateItemFromParsingName(string path)

{

object item;

Guid guid = new Guid("43826d1e-e718-42ee-bc55-a1e261c37bfe"); // IID_IShellItem

int hr = SHCreateItemFromParsingName(path, IntPtr.Zero, ref guid, out item);

if( hr != 0 )

throw new Win32Exception(hr);

return (IShellItem)item;

}

#endregion

#region Desktop Window Manager

public const int WM_NCHITTEST = 0x0084;

public const int WM_DWMCOMPOSITIONCHANGED = 0x031E;

public enum HitTestResult

{

Error = -2,

Transparent = -1,

Nowhere = 0,

Client = 1,

Caption = 2,

SysMenu = 3,

GrowBox = 4,

Size = GrowBox,

Menu = 5,

HScroll = 6,

VScroll = 7,

MinButton = 8,

MaxButton = 9,

Left = 10,

Right = 11,

Top = 12,

TopLeft = 13,

TopRight = 14,

Bottom = 15,

BottomLeft = 16,

BottomRight = 17,

Border = 18,

Reduce = MinButton,

Zoom = MaxButton,

SizeFirst = Left,

SizeLast = BottomRight,

Object = 19,

Close = 20,

Help = 21

}

public struct MARGINS

{

public MARGINS(Padding value)

{

Left = value.Left;

Right = value.Right;

Top = value.Top;

Bottom = value.Bottom;

}

public int Left;

public int Right;

public int Top;

public int Bottom;

}

[DllImport("dwmapi.dll", PreserveSig = false)]

public static extern void DwmExtendFrameIntoClientArea(IntPtr hWnd, [In] ref MARGINS pMarInset);

[DllImport("dwmapi.dll", PreserveSig = false)]

[return: MarshalAs(UnmanagedType.Bool)]

public static extern bool DwmIsCompositionEnabled();

[DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]

public static extern SafeDeviceHandle CreateCompatibleDC(IntPtr hDC);

[DllImport("gdi32.dll", ExactSpelling = true)]

public static extern IntPtr SelectObject(SafeDeviceHandle hDC, SafeGDIHandle hObject);

[DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]

[return: MarshalAs(UnmanagedType.Bool)]

[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]

public static extern bool DeleteObject(IntPtr hObject);

[DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]

[return: MarshalAs(UnmanagedType.Bool)]

[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]

public static extern bool DeleteDC(IntPtr hdc);

[DllImport("gdi32.dll")]

[return: MarshalAs(UnmanagedType.Bool)]

public static extern bool BitBlt(IntPtr hdc, int nXDest, int nYDest, int nWidth, int nHeight, SafeDeviceHandle hdcSrc, int nXSrc, int nYSrc, uint dwRop);

[DllImport("UxTheme.dll", CharSet = CharSet.Unicode, PreserveSig = false)]

public static extern void DrawThemeTextEx(IntPtr hTheme, SafeDeviceHandle hdc, int iPartId, int iStateId, string text, int iCharCount, int dwFlags, ref RECT pRect, ref DTTOPTS pOptions);

[DllImport("gdi32.dll")]

public static extern SafeGDIHandle CreateDIBSection(IntPtr hdc, BITMAPINFO pbmi, uint iUsage, IntPtr ppvBits, IntPtr hSection, uint dwOffset);

[DllImport("UxTheme.dll", CharSet = CharSet.Unicode, PreserveSig = false)]

public static extern void GetThemeTextExtent(IntPtr hTheme, SafeDeviceHandle hdc, int iPartId, int iStateId, string text, int iCharCount, int dwTextFlags, [In]ref RECT bounds, out RECT rect);

[StructLayout(LayoutKind.Sequential)]

public struct DTTOPTS

{

public int dwSize;

[MarshalAs(UnmanagedType.U4)]

public DrawThemeTextFlags dwFlags;

public int crText;

public int crBorder;

public int crShadow;

public int iTextShadowType;

public Point ptShadowOffset;

public int iBorderSize;

public int iFontPropId;

public int iColorPropId;

public int iStateId;

public bool fApplyOverlay;

public int iGlowSize;

public int pfnDrawTextCallback;

public IntPtr lParam;

}

[Flags()]

public enum DrawThemeTextFlags

{

TextColor = 1 << 0,

BorderColor = 1 << 1,

ShadowColor = 1 << 2,

ShadowType = 1 << 3,

ShadowOffset = 1 << 4,

BorderSize = 1 << 5,

FontProp = 1 << 6,

ColorProp = 1 << 7,

StateId = 1 << 8,

CalcRect = 1 << 9,

ApplyOverlay = 1 << 10,

GlowSize = 1 << 11,

Callback = 1 << 12,

Composited = 1 << 13

}

[StructLayout(LayoutKind.Sequential)]

public class BITMAPINFO

{

public int biSize;

public int biWidth;

public int biHeight;

public short biPlanes;

public short biBitCount;

public int biCompression;

public int biSizeImage;

public int biXPelsPerMeter;

public int biYPelsPerMeter;

public int biClrUsed;

public int biClrImportant;

public byte bmiColors_rgbBlue;

public byte bmiColors_rgbGreen;

public byte bmiColors_rgbRed;

public byte bmiColors_rgbReserved;

}

[StructLayout(LayoutKind.Sequential)]

public struct RECT

{

public int Left;

public int Top;

public int Right;

public int Bottom;

public RECT(int left, int top, int right, int bottom)

{

Left = left;

Top = top;

Right = right;

Bottom = bottom;

}

public RECT(Rectangle rectangle)

{

Left = rectangle.X;

Top = rectangle.Y;

Right = rectangle.Right;

Bottom = rectangle.Bottom;

}

public override string ToString()

{

return "Left: " + Left + ", " + "Top: " + Top + ", Right: " + Right + ", Bottom: " + Bottom;

}

}

#endregion

}

}