/// <summary>
/// Get the standard Windows icon.
/// </summary>
/// <param name="iconId">Type of icon to get</param>
/// <returns>BitmapSource</returns>
public static BitmapSource GetWindowsIcon(StockIconId iconId)
{
// Get handle of big icon.
const StockIconFlags Flags = StockIconFlags.Large | StockIconFlags.Handle;
var info = new StockIconInfo
{
cbSize = (uint)Marshal.SizeOf(typeof(StockIconInfo))
};
// Save bitmap source of icon.
BitmapSource source = null;
SHGetStockIconInfo(iconId, Flags, ref info);
try
{
if (info.hIcon != IntPtr.Zero)
{
source = Imaging.CreateBitmapSourceFromHIcon(info.hIcon, Int32Rect.Empty, null);
}
}
catch (Exception ex)
{
App.LogException(ex);
}
finally
{
DestroyIcon(info.hIcon);
}
return(source);
}
/// <summary>
/// Gets the stock icon with the given id and flags.
/// </summary>
/// <param name="stockIconId">The id of the icon to retrieve.</param>
/// <param name="flags">Flag values indicating how to create the icon.</param>
/// <returns>Returns an instance of <see cref="BitmapSource"/> containing the stock icon.</returns>
private static BitmapSource GetBitmapSource(StockIconId stockIconId, StockIconFlags flags)
{
int hResult;
BitmapSource bitmapSource;
var stockIconInfo = StockIconInfo.Empty();
//Get the stock icon's handle.
hResult = SHGetStockIconInfo((uint)stockIconId, 0x100 | (uint)flags, ref stockIconInfo);
//If the icon retrieval failed, throw an error.
if (hResult < 0)
{
throw new COMException("An error occurred when calling SHGetStockIconInfo.", hResult);
}
try
{
//Convert the handle into an instance of BitmapSource.
bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(stockIconInfo.IconHandle, Int32Rect.Empty, null);
}
finally
{
//Don't forget to release the resources.
DestroyIcon(stockIconInfo.IconHandle);
}
//Freeze the bitmap.
bitmapSource.Freeze();
return(bitmapSource);
}
//---------------------------------------------------------------------------------------------
// 指定のストックアイコンを取得する
// id : アイコンの種類を指定する StockIconId enum 型
// flag : アイコンのサイズを指定する StockIconFlags enum 型
private BitmapSource GetStockIconById(StockIconId id, StockIconFlags flag)
{
BitmapSource bitmapSource = null;
StockIconFlags flags = StockIconFlags.Handle | flag;
var info = new StockIconInfo();
info.cbSize = (uint)Marshal.SizeOf(typeof(StockIconInfo));
IntPtr result = SHGetStockIconInfo(id, flags, ref info);
if (info.hIcon != IntPtr.Zero)
{
bitmapSource = Imaging.CreateBitmapSourceFromHIcon(info.hIcon, Int32Rect.Empty, null);
DestroyIcon(info.hIcon);
}
return(bitmapSource);
}
private static extern IntPtr SHGetStockIconInfo(
StockIconId siid, // 取得するアイコンの IDを指定する StockIconId enum 型
StockIconFlags uFlags, // 取得するアイコンの種類を指定する StockIconFlags enum 型
ref StockIconInfo psii //（戻り値）StockIconInfo 型
);
private static extern IntPtr SHGetStockIconInfo(
StockIconId siid, // StockIconId enum type that specifies the ID of the icon to retrieve
StockIconFlags uFlags, // StockIconFlags enum type that specifies the type of icon to retrieve
ref StockIconInfo psii // (Return value) StockIconInfo type
);
