/// <summary>
/// Extract the icon from file, and return icon information
/// </summary>
/// <param name="path">File path,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <param name="size">The desired icon size</param>
/// <param name="linkOverlay">Whether to include the link icon</param>
/// <param name="shfi">The icon size</param>
/// <returns>This method always returns an icon with the especified size and thier information.</returns>
public static Icon ExtractIconFromFileEx(string path, IconSize size, bool linkOverlay, ref Shell32.SHFILEINFO shfi)
{
EmbeddedIconInfo embeddedIcon = GetEmbeddedIconInfo(Environment.ExpandEnvironmentVariables(path));
//Gets the handle of the icon.
return(GetFileIcon(embeddedIcon.FileName, size, linkOverlay, ref shfi));
}
/// <summary>
/// Extract the icon from file.
/// </summary>
/// <param name="path">File path,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <returns>This method always returns the large size of the icon (may be 32x32 px).</returns>
public static Icon ExtractIconFromFile(string path)
{
EmbeddedIconInfo embeddedIcon = GetEmbeddedIconInfo(Environment.ExpandEnvironmentVariables(path));
//Gets the handle of the icon.
return(ExtractIconFromFile(embeddedIcon.FileName, embeddedIcon.IconIndex));
}
protected static EmbeddedIconInfo GetEmbeddedIconInfo(string fileAndParam)
{
EmbeddedIconInfo embeddedIcon = new EmbeddedIconInfo("", 0);
if (string.IsNullOrEmpty(fileAndParam))
{
return(embeddedIcon);
}
string fileName = String.Empty;
int iconIndex = 0;
string iconIndexString = String.Empty;
int commaIndex = fileAndParam.IndexOf(",");
if (commaIndex > 0)
{
fileName = fileAndParam.Substring(0, commaIndex);
iconIndexString = fileAndParam.Substring(commaIndex + 1);
}
else
{
fileName = fileAndParam;
}
if (!string.IsNullOrEmpty(iconIndexString))
{
iconIndex = int.Parse(iconIndexString);
if (iconIndex < 0)
{
iconIndex = 0;
}
}
embeddedIcon.FileName = fileName;
embeddedIcon.IconIndex = iconIndex;
return(embeddedIcon);
}
/// <summary>
/// دریافت آیکن یک فایل
/// </summary>
/// <param name="fileAndParam">آدرس فایل و ایندکس آیکن</param>
/// <param name="isLarge">آیا یک آیک بزرگ است یا خیر</param>
/// <returns></returns>
public static Icon ExtractIconFromFile(EmbeddedIconInfo fileAndParam, bool isLarge)
{
unsafe
{
uint readIconCount = 0;
IntPtr[] hDummy = new IntPtr[1] {
IntPtr.Zero
};
IntPtr[] hIconEx = new IntPtr[1] {
IntPtr.Zero
};
try
{
if (isLarge)
{
readIconCount = ExtractIconEx(fileAndParam.FileName, 0, hIconEx, hDummy, 1);
}
else
{
readIconCount = ExtractIconEx(fileAndParam.FileName, 0, hDummy, hIconEx, 1);
}
if (readIconCount > 0 && hIconEx[0] != IntPtr.Zero)
{
Icon extractedIcon = (Icon)Icon.FromHandle(hIconEx[0]).Clone();
return(extractedIcon);
}
else
{
return(null);
}
}
catch (Exception exc)
{
throw new ApplicationException("Could not extract icon", exc);
}
finally
{
foreach (IntPtr ptr in hIconEx)
{
if (ptr != IntPtr.Zero)
{
DestroyIcon(ptr);
}
}
foreach (IntPtr ptr in hDummy)
{
if (ptr != IntPtr.Zero)
{
DestroyIcon(ptr);
}
}
}
}
}
/// <summary>
/// Parses the parameters string to the structure of EmbeddedIconInfo.
/// </summary>
/// <param name="fileAndParam">The params string,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <returns></returns>
public static EmbeddedIconInfo GetEmbeddedIconInfo(string fileAndParam)
{
EmbeddedIconInfo embeddedIcon = new EmbeddedIconInfo();
if (string.IsNullOrEmpty(fileAndParam))
{
return(embeddedIcon);
}
//Use to store the file contains icon.
string fileName;
//The index of the icon in the file.
int iconIndex = 0;
string iconIndexString = String.Empty;
int commaIndex = fileAndParam.IndexOf(",");
//if fileAndParam is some thing likes that: "C:\\Program Files\\NetMeeting\\conf.exe,1".
if (commaIndex > 0)
{
fileName = fileAndParam.Substring(0, commaIndex);
iconIndexString = fileAndParam.Substring(commaIndex + 1);
}
else
{
fileName = fileAndParam;
}
if (!string.IsNullOrEmpty(iconIndexString))
{
//Get the index of icon.
try
{
iconIndex = int.Parse(iconIndexString);
if (iconIndex < 0)
{
iconIndex = 0; //To avoid the invalid index.
}
}
catch //(Exception ex)
{
//MessageBox.Show("Source: " + ex.Source + Environment.NewLine + ex.Message);
}
}
embeddedIcon.FileName = fileName;
embeddedIcon.IconIndex = iconIndex;
return(embeddedIcon);
}
public static Icon ExtractIconFromFile(string fileAndParam)
{
try
{
EmbeddedIconInfo embeddedIconInfo =
getEmbeddedIconInfo(fileAndParam);
return(Icon.FromHandle(ExtractIcon(0, embeddedIconInfo.FileName,
embeddedIconInfo.IconIndex)));
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Parses the parameters string to the structure of EmbeddedIconInfo.
/// </summary>
/// <param name="fileAndParam">The params string, such as ex:
/// "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
public static EmbeddedIconInfo getEmbeddedIconInfo(string fileAndParam)
{
EmbeddedIconInfo embeddedIcon = new EmbeddedIconInfo();
if (String.IsNullOrEmpty(fileAndParam))
{
return(embeddedIcon);
}
//Use to store the file contains icon.
string fileName = String.Empty;
//The index of the icon in the file.
int iconIndex = 0;
string iconIndexString = String.Empty;
int commaIndex = fileAndParam.IndexOf(",");
//if fileAndParam is some thing likes this:
//"C:\\Program Files\\NetMeeting\\conf.exe,1".
if (commaIndex > 0)
{
fileName = fileAndParam.Substring(0, commaIndex);
iconIndexString = fileAndParam.Substring(commaIndex + 1);
}
else
{
fileName = fileAndParam;
}
if (!String.IsNullOrEmpty(iconIndexString))
{
//Get the index of icon.
iconIndex = int.Parse(iconIndexString);
/*if (iconIndex < 0)
* iconIndex = 0; //To avoid the invalid index.
* may cause unexpeced benaviour
*/
}
embeddedIcon.FileName = fileName;
embeddedIcon.IconIndex = iconIndex;
return(embeddedIcon);
}
/// <summary>
/// Extract the icon from file.
/// </summary>
/// <param name="fileAndParam">The params string,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <returns>This method always returns the large size of the icon (may be 32x32 px).</returns>
public static Icon ExtractIconFromFile(string fileAndParam)
{
try
{
EmbeddedIconInfo embeddedIcon = GetEmbeddedIconInfo(fileAndParam);
//Gets the handle of the icon.
IntPtr lIcon = ExtractIcon(0, embeddedIcon.FileName, embeddedIcon.IconIndex);
//Gets the real icon.
return(Icon.FromHandle(lIcon));
}
catch (Exception exc)
{
throw exc;
}
}
/// <summary>
/// Extract the icon from file.
/// </summary>
/// <param name="path">File path,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <param name="isLarge">
/// Determines the returned icon is a large (may be 32x32 px)
/// or small icon (16x16 px).</param>
public static Icon ExtractIconFromFile(string path, bool isLarge)
{
IntPtr[] hDummy = new IntPtr[] { IntPtr.Zero };
IntPtr[] hIconEx = new IntPtr[] { IntPtr.Zero };
try
{
EmbeddedIconInfo embeddedIcon = GetEmbeddedIconInfo(Environment.ExpandEnvironmentVariables(path));
uint readIconCount = isLarge ? Shell32.ExtractIconEx(embeddedIcon.FileName, 0, hIconEx, hDummy, 1) : Shell32.ExtractIconEx(embeddedIcon.FileName, 0, hDummy, hIconEx, 1);
if (readIconCount > 0 && hIconEx[0] != IntPtr.Zero)
{
// Get first icon.
return(GetManagedIcon(hIconEx[0]));
}
else // No icon read
{
return(null);
}
}
catch (Exception exc)
{
// Extract icon error.
throw new ApplicationException("Could not extract icon", exc);
}
finally
{
// Release resources.
foreach (IntPtr ptr in hIconEx)
{
if (ptr != IntPtr.Zero)
{
User32.DestroyIcon(ptr);
}
}
foreach (IntPtr ptr in hDummy)
{
if (ptr != IntPtr.Zero)
{
User32.DestroyIcon(ptr);
}
}
}
}
public static Icon ExtractIconFromFile(string fileAndParam, bool isLarge)
{
IntPtr[] numArray1 = new IntPtr[1]
{
IntPtr.Zero
};
IntPtr[] numArray2 = new IntPtr[1]
{
IntPtr.Zero
};
try
{
EmbeddedIconInfo embeddedIconInfo = getEmbeddedIconInfo(fileAndParam);
return((!isLarge
? ExtractIconEx(embeddedIconInfo.FileName, 0, numArray1, numArray2, 1U)
: ExtractIconEx(embeddedIconInfo.FileName, 0, numArray2, numArray1, 1U)) >
0U && numArray2[0] != IntPtr.Zero
? (Icon)Icon.FromHandle(numArray2[0]).Clone()
: (Icon)null);
}
catch (Exception ex)
{
throw new ApplicationException("Could not extract icon", ex);
}
finally
{
foreach (IntPtr hIcon in numArray2)
{
if (hIcon != IntPtr.Zero)
{
DestroyIcon(hIcon);
}
}
foreach (IntPtr hIcon in numArray1)
{
if (hIcon != IntPtr.Zero)
{
DestroyIcon(hIcon);
}
}
}
}
/// <summary>
/// دریافت آیکن یک پسوند
/// </summary>
/// <param name="extension">پسوند</param>
/// <returns></returns>
public static EmbeddedIconInfo GetExtensionDefaultIcon(string extension)
{
if (string.IsNullOrEmpty(extension))
{
throw new ArgumentNullException(extension);
}
EmbeddedIconInfo _EmbeddedIconInfo = null;
RegistryKey classesRoot = Registry.ClassesRoot;
if (!extension.StartsWith("."))
{
extension = "." + extension;
}
RegistryKey rkFileType = classesRoot.OpenSubKey(extension);
if (rkFileType == null)
{
return(null);
}
object defaultValue = rkFileType.GetValue("");
if (defaultValue == null)
{
return(null);
}
string defaultIcon = defaultValue.ToString() + "\\DefaultIcon";
RegistryKey rkFileIcon = classesRoot.OpenSubKey(defaultIcon);
if (rkFileIcon != null)
{
object value = rkFileIcon.GetValue("");
if (value != null)
{
string fileParam = value.ToString().Replace("\"", "");
_EmbeddedIconInfo = GetEmbeddedIconInfo(fileParam);
}
rkFileIcon.Close();
}
rkFileType.Close();
classesRoot.Close();
return(_EmbeddedIconInfo);
}
protected static EmbeddedIconInfo getEmbeddedIconInfo(
string fileAndParam)
{
EmbeddedIconInfo embeddedIconInfo = new EmbeddedIconInfo();
if (string.IsNullOrEmpty(fileAndParam))
{
return(embeddedIconInfo);
}
string empty = string.Empty;
int num = 0;
string s = string.Empty;
int length = fileAndParam.IndexOf(",");
string str;
if (length > 0)
{
str = fileAndParam.Substring(0, length);
s = fileAndParam.Substring(length + 1);
}
else
{
str = fileAndParam;
}
if (!string.IsNullOrEmpty(s))
{
num = int.Parse(s);
if (num < 0)
{
num = 0;
}
}
embeddedIconInfo.FileName = str;
embeddedIconInfo.IconIndex = num;
return(embeddedIconInfo);
}
/// <summary>
/// Extract the icon from file.
/// </summary>
/// <param name="fileAndParam">The params string, such as ex:
/// "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <param name="isLarge">Determines the returned icon is a large
/// (may be 32x32 px) or small icon (16x16 px).</param>
public static System.Drawing.Icon ExtractIconFromFile(string fileAndParam, bool isLarge)
{
unsafe
{
uint readIconCount = 0;
IntPtr[] hDummy = new IntPtr[1] {
IntPtr.Zero
};
IntPtr[] hIconEx = new IntPtr[1] {
IntPtr.Zero
};
try
{
EmbeddedIconInfo embeddedIcon =
getEmbeddedIconInfo(fileAndParam);
if (isLarge)
{
readIconCount = ExtractIconEx
(embeddedIcon.FileName, embeddedIcon.IconIndex, hIconEx, hDummy, 1);
}
else
{
readIconCount = ExtractIconEx
(embeddedIcon.FileName, embeddedIcon.IconIndex, hDummy, hIconEx, 1);
}
if (readIconCount > 0 && hIconEx[0] != IntPtr.Zero)
{
//Get first icon.
System.Drawing.Icon extractedIcon =
(System.Drawing.Icon)System.Drawing.Icon.FromHandle(hIconEx[0]).Clone();
return(extractedIcon);
}
else //No icon read.
{
return(null);
}
}
catch (Exception exc)
{
//Extract icon error.
throw new ApplicationException
("Could not extract icon", exc);
}
finally
{
//Release resources.
foreach (IntPtr ptr in hIconEx)
{
if (ptr != IntPtr.Zero)
{
DestroyIcon(ptr);
}
}
foreach (IntPtr ptr in hDummy)
{
if (ptr != IntPtr.Zero)
{
DestroyIcon(ptr);
}
}
}
}
}
public static Icon ExtractIconFromFile(EmbeddedIconInfo fileAndParam)
{
IntPtr lIcon = ExtractIcon(0, fileAndParam.FileName, fileAndParam.IconIndex);
return(Icon.FromHandle(lIcon));
}
/// <summary>
/// Parses the parameters string to the structure of EmbeddedIconInfo.
/// </summary>
/// <param name="fileAndParam">The params string,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <returns></returns>
public static EmbeddedIconInfo GetEmbeddedIconInfo(string fileAndParam)
{
EmbeddedIconInfo embeddedIcon = new EmbeddedIconInfo();
if (string.IsNullOrEmpty(fileAndParam))
return embeddedIcon;
//Use to store the file contains icon.
string fileName;
//The index of the icon in the file.
int iconIndex = 0;
string iconIndexString = String.Empty;
int commaIndex = fileAndParam.IndexOf(",");
//if fileAndParam is some thing likes that: "C:\\Program Files\\NetMeeting\\conf.exe,1".
if (commaIndex > 0)
{
fileName = fileAndParam.Substring(0, commaIndex);
iconIndexString = fileAndParam.Substring(commaIndex + 1);
}
else
fileName = fileAndParam;
if (!string.IsNullOrEmpty(iconIndexString))
{
//Get the index of icon.
try
{
iconIndex = int.Parse(iconIndexString);
if (iconIndex < 0)
iconIndex = 0; //To avoid the invalid index.
}
catch (Exception ex)
{
//MessageBox.Show("Source: " + ex.Source + Environment.NewLine + ex.Message);
}
}
embeddedIcon.FileName = fileName;
embeddedIcon.IconIndex = iconIndex;
return embeddedIcon;
}
/// <summary>
/// Parses the parameters string to the structure of EmbeddedIconInfo.
/// </summary>
/// <param name="fileAndParam">The params string,
/// such as ex: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <returns></returns>
protected static EmbeddedIconInfo GetEmbeddedIconInfo(string fileAndParam)
{
var embeddedIcon = new EmbeddedIconInfo();
if (String.IsNullOrEmpty(fileAndParam))
{
return embeddedIcon;
}
//Use to store the file contains icon.
string fileName = String.Empty;
//The index of the icon in the file.
int iconIndex = 0;
string iconIndexString = String.Empty;
int commaIndex = fileAndParam.IndexOf(",");
//if fileAndParam is some thing likes that: "C:\\Program Files\\NetMeeting\\conf.exe,1".
if (commaIndex > 0)
{
fileName = fileAndParam.Substring(0, commaIndex);
iconIndexString = fileAndParam.Substring(commaIndex + 1);
}
else
{
fileName = fileAndParam;
}
if (!String.IsNullOrEmpty(iconIndexString))
{
//Get the index of icon.
iconIndex = int.Parse(iconIndexString);
if (iconIndex < 0)
{
iconIndex = 0;
//To avoid the invalid index.
}
}
embeddedIcon.FileName = fileName;
embeddedIcon.IconIndex = iconIndex;
return embeddedIcon;
}
/// <summary>
/// Parses the parameters string to the structure of EmbeddedIconInfo.
/// </summary>
/// <param name="fileAndParam">The params string, such as ex:
/// "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
public static EmbeddedIconInfo getEmbeddedIconInfo(string fileAndParam)
{
EmbeddedIconInfo embeddedIcon = new EmbeddedIconInfo();
if (String.IsNullOrEmpty(fileAndParam))
return embeddedIcon;
//Use to store the file contains icon.
string fileName = String.Empty;
//The index of the icon in the file.
int iconIndex = 0;
string iconIndexString = String.Empty;
int commaIndex = fileAndParam.IndexOf(",");
//if fileAndParam is some thing likes this:
//"C:\\Program Files\\NetMeeting\\conf.exe,1".
if (commaIndex > 0)
{
fileName = fileAndParam.Substring(0, commaIndex);
iconIndexString = fileAndParam.Substring(commaIndex + 1);
}
else
fileName = fileAndParam;
if (!String.IsNullOrEmpty(iconIndexString))
{
//Get the index of icon.
iconIndex = int.Parse(iconIndexString);
/*if (iconIndex < 0)
iconIndex = 0; //To avoid the invalid index.
* may cause unexpeced benaviour
*/
}
embeddedIcon.FileName = fileName;
embeddedIcon.IconIndex = iconIndex;
return embeddedIcon;
}
/// <summary> Извлекает иконку из файла.
/// </summary>
/// <param name="fileAndParam">
/// Строка параметров,
/// например: "C:\\Program Files\\NetMeeting\\conf.exe,1".</param>
/// <param name="isLarge">
/// Возвращается икона большая (может быть 32x32
/// или маленькая иконка (16х16 пикселей).</param>
public static Bitmap GetIcon(string fileAndParam, bool isLarge)
{
EmbeddedIconInfo embeddedIcon = GetEmbeddedIconInfo(fileAndParam);
return(GetIcon(embeddedIcon.FileName, embeddedIcon.IconIndex, isLarge));
}
