【C#】在 ListView 中顯示文件和文件夾系統圖標的實現類
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關鍵代碼如下：
class IFileHelper
{
public IFileHelper() { }
#region 在 ListView 中顯示系統圖標的方法
public static uint SHGFI_ICON = 0x100;
public static uint SHGFI_DISPLAYNAME = 0x200;
public static uint SHGFI_TYPENAME = 0x400;
public static uint SHGFI_ATTRIBUTES = 0x800;
public static uint SHGFI_ICONLOCATION = 0x1000;
public static uint SHGFI_EXETYPE = 0x2000;
public static uint SHGFI_SYSICONINDEX = 0x4000;
public static uint SHGFI_LINKOVERLAY = 0x8000;
public static uint SHGFI_SELECTED = 0x10000;
public static uint SHGFI_LARGEICON = 0x0;
public static uint SHGFI_SMALLICON = 0x1;
public static uint SHGFI_OPENICON = 0x2;
public static uint SHGFI_SHELLICONSIZE = 0x4;
public static uint SHGFI_PIDL = 0x8;
public static uint SHGFI_USEFILEATTRIBUTES = 0x10;
public static uint FILE_ATTRIBUTE_NORMAL = 0x80;
public static uint LVM_FIRST = 0x1000;
public static uint LVM_SETIMAGELIST = LVM_FIRST + 3;
public static uint LVSIL_NORMAL = 0;
public static uint LVSIL_SMALL = 1;
[DllImport("Shell32.dll")]
public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, int cbfileInfo, uint uFlags);
[DllImport("User32.DLL")]
public static extern int SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
public struct SHFILEINFO
{
public IntPtr hIcon;
public int iIcon;
public int dwAttributes;
public string szDisplayName;
public string szTypeName;
}
/// <summary>
/// 使 ListView 顯示系統圖標
/// </summary>
/// <param name="AListView"></param>
public void ListViewSysImages(ListView AListView)
{
SHFILEINFO vFileInfo = new SHFILEINFO();
IntPtr vImageList = SHGetFileInfo("", 0, ref vFileInfo, Marshal.SizeOf(vFileInfo), SHGFI_SHELLICONSIZE | SHGFI_SYSICONINDEX | SHGFI_LARGEICON);
SendMessage(AListView.Handle, LVM_SETIMAGELIST, (IntPtr)LVSIL_NORMAL, vImageList);
vImageList = SHGetFileInfo("", 0, ref vFileInfo, Marshal.SizeOf(vFileInfo), SHGFI_SHELLICONSIZE | SHGFI_SYSICONINDEX | SHGFI_SMALLICON);
SendMessage(AListView.Handle, LVM_SETIMAGELIST, (IntPtr)LVSIL_SMALL, vImageList);
}
/// <summary>
/// 獲取文件或文件夾的圖標
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public int FileIconIndex(string filePath)
{
SHFILEINFO vFileInfo = new SHFILEINFO();
SHGetFileInfo(filePath, 0, ref vFileInfo, Marshal.SizeOf(vFileInfo), SHGFI_SYSICONINDEX);
return vFileInfo.iIcon;
}
#endregion
}
調用方法：
this.listView1.Items.Add(Path.GetFileName(file), FileIconIndex(file)); 該文章在 2021/3/11 1:58:45 編輯過 |
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