How to Open Properties dialog for multiple selected files using WIN FORM C#

Jo Srm 21 Reputation points
2022-11-02T13:51:14.253+00:00

I hope you all are doing well.

Using: WIN-FORM, C#

I am using the code from this link to open the file properties of a single file from my app and, this works great.

What I have been looking for and seems that nothing is found, is how to get the properties for 2 or more selected files?

In the image below, I used File Explorer and I selected several files and got the files properties by right click > Properties.

256441-file-properties-multiple-selection.jpg

How could I implement this in c# code or could the code in the provided link be modified?

Regards,

Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,870 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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2 answers

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  1. Castorix31 83,021 Reputation points
    2022-11-02T15:17:34.867+00:00

    It can be done with SHCreateDefaultContextMenu
    (or by converting Displaying a property sheet for multiple files in C#)
    (Edit : SHMultiFileProperties might be simpler...)


  2. Castorix31 83,021 Reputation points
    2022-11-02T21:27:35.093+00:00

    A test with SHMultiFileProperties, with 2 .jpg files :

            IntPtr pidlParent = IntPtr.Zero, pidlFull = IntPtr.Zero, pidlItem = IntPtr.Zero;  
            uint rgflnOut = 0;  
            var aPidl = new IntPtr[255];  
            uint nIndex = 0;  
            HRESULT hr = SHILCreateFromPath("E:\\test.jpg", out pidlFull, ref rgflnOut);  
            if (hr == HRESULT.S_OK)  
            {  
                pidlItem = ILFindLastID(pidlFull);  
                aPidl[nIndex++] = ILClone(pidlItem);  
                ILRemoveLastID(pidlFull);  
                //pidlParent = ILClone(pidlFull);  
                ILFree(pidlFull);  
            }  
            hr = SHILCreateFromPath("E:\\test2.jpg", out pidlFull, ref rgflnOut);  
            if (hr == HRESULT.S_OK)  
            {  
                pidlItem = ILFindLastID(pidlFull);  
                aPidl[nIndex++] = ILClone(pidlItem);  
                ILRemoveLastID(pidlFull);  
                pidlParent = ILClone(pidlFull);  
                ILFree(pidlFull);  
            }  
            System.Runtime.InteropServices.ComTypes.IDataObject pDO = null;  
            hr = CIDLData_CreateFromIDArray(pidlParent, nIndex, aPidl, out pDO);  
            if (hr == HRESULT.S_OK)  
            {  
                hr = SHMultiFileProperties(pDO, 0);  
            }  
    
            if (pidlParent != IntPtr.Zero)  
                ILFree(pidlParent);  
            for (int i = 0;i < nIndex; i++)  
            {  
                if (aPidl[i] != IntPtr.Zero)  
                    ILFree(aPidl[i]);  
            }    
    

    Declarations :

       public enum HRESULT : int  
        {  
            S_OK = 0,  
            S_FALSE = 1,  
            E_NOINTERFACE = unchecked((int)0x80004002),  
            E_NOTIMPL = unchecked((int)0x80004001),  
            E_FAIL = unchecked((int)0x80004005),  
        }  
    
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern HRESULT SHILCreateFromPath([MarshalAs(UnmanagedType.LPWStr)] string pszPath, out IntPtr ppIdl, ref uint rgflnOut);  
    
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern IntPtr ILFindLastID(IntPtr pidl);  
    
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern IntPtr ILClone(IntPtr pidl);  
    
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern Boolean ILRemoveLastID(IntPtr pidl);  
    
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern void ILFree(IntPtr pidl);  
     
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern HRESULT CIDLData_CreateFromIDArray(IntPtr pidlFolder, uint cidl, IntPtr[] apidl, out System.Runtime.InteropServices.ComTypes.IDataObject ppdtobj);  
    
        [DllImport("Shell32.dll", CharSet = CharSet.Unicode, SetLastError = true)]  
        public static extern HRESULT SHMultiFileProperties(System.Runtime.InteropServices.ComTypes.IDataObject pdtobj, uint dwFlags);