How do I extract an Icon from DLL-file

[ei99asjo]

I have a really serious problem. I was building my own explorer but when it came to adding icons I got stuck. You can retreive the file association from the registry, and in the registry it also tells you where the program Icon is located and an integer number. But I don't know how to use this information.
Anyone help me please!

[Desire]

Hello,
Here we go, all the code you need,
Place the following code into a module

Option Explicit

Private Type PicBmp
   Size As Long
   tType As Long
   hBmp As Long
   hPal As Long
   Reserved As Long
End Type

Private Type GUID
   Data1 As Long
   Data2 As Integer
   Data3 As Integer
   Data4(7) As Byte
End Type

Private Declare Function OleCreatePictureIndirect Lib "olepro32.dll" (PicDesc As PicBmp, RefIID As GUID, ByVal fPictureOwnsHandle As Long, IPic As IPicture) As Long
Private Declare Function ExtractIconEx Lib "shell32.dll" Alias "ExtractIconExA" (ByVal lpszFile As String, ByVal nIconIndex As Long, phiconLarge As Long, phiconSmall As Long, ByVal nIcons As Long) As Long
Private Declare Function DestroyIcon Lib "user32" (ByVal hicon As Long) As Long

'---FUNCTION---'

Public Function GetIconFromFile(FileName As String, IconIndex As Long, UseLargeIcon As Boolean) As Picture
    
    'Parameters:
    'FileName - File (EXE or DLL) containing icons
    'IconIndex - Index of icon to extract, starting with 0
    'UseLargeIcon-True for a large icon, False for a small icon
    'Returns: Picture object, containing icon
    
    Dim hlargeicon As Long
    Dim hsmallicon As Long
    Dim selhandle As Long
    
    'IPicture requires a reference to "Standard OLE Types."
    Dim pic As PicBmp
    Dim IPic As IPicture
    Dim IID_IDispatch As GUID
    
    If ExtractIconEx(FileName, IconIndex, hlargeicon, hsmallicon, 1) > 0 Then
        If UseLargeIcon Then
            selhandle = hlargeicon
        Else
            selhandle = hsmallicon
        End If
    
        'Fill in with IDispatch Interface ID.
        With IID_IDispatch
            .Data1 = &H20400
            .Data4(0) = &HC0
            .Data4(7) = &H46
        End With
        'Fill Pic with necessary parts.
        With pic
            .Size = Len(pic) 'Length of structure.
            .tType = vbPicTypeIcon 'Type of Picture (bitmap).
            .hBmp = selhandle 'Handle to bitmap.
        End With
        
        'Create Picture object.
        Call OleCreatePictureIndirect(pic, IID_IDispatch, 1, IPic)
        
        'Return the new Picture object.
        Set GetIconFromFile = IPic
        
        DestroyIcon hsmallicon
        DestroyIcon hlargeicon
    
    End If
End Function

Add a command button and 2 picture boxes to a form and then paste this code in,

Option Explicit

Private Sub Command1_Click()
    '//LARGE ICON
    Set Picture1.Picture = GetIconFromFile("c:\windows\moricons.dll", 0, True)
    '//SMALL ICON
    Set Picture2.Picture = GetIconFromFile("c:\windows\moricons.dll", 0, False)
End Sub

Hope it helps,
Desire.