BackgroundImage property of Windows Form TreeView control and ListView control appears on the IntelliSense menu in Visual Studio .NET 2002 but has no effect at runtime (834533)

treeview1.BackgroundImage.FromFile ("C:\mybitmap.bmp")

WORKAROUND

To work around this problem, you can draw the image by sending a Microsoft Windows message to the underlying control. You can do this by using Platform Invocation Services (PInvoke). Before you can use PInvoke to do this, you have to import the following namespace.

using System.Runtime.InteropServices;

You can use the following code sample to set an image to the ListView control in Microsoft Visual C# .NET.

	[DllImport("ole32.dll")]
	public extern static void CoUninitialize();

	[DllImport("ole32.dll")]
	public extern static int CoInitialize(int pReserved);

	[DllImport("user32.dll")]
	public extern static int SendMessage(IntPtr hwnd, uint msg, uint wParam, uint lParam);

	[DllImport("user32.dll")]
	public extern static int SendMessage(IntPtr hwnd, uint msg, uint wParam, LVBKIMAGE lParam);
		
	private const int NOERROR = 0x0;
	private const int S_OK = 0x0;
	private const int S_FALSE = 0x1;
	private const int LVM_FIRST = 0x1000;
	private const int LVM_SETBKIMAGE = LVM_FIRST + 68;
	private const int LVM_SETTEXTBKCOLOR = LVM_FIRST + 38;
	private const int LVBKIF_SOURCE_URL = 0x02;
	private const int LVBKIF_STYLE_TILE = 0x10;
	private const uint CLR_NONE = 0xFFFFFFFF;

	[StructLayout(LayoutKind.Sequential)]
	public class LVBKIMAGE
	{
		public int ulFlags;
		public IntPtr hbm;
		public string pszImage;
		public int cchImageMax;
		public int xOffsetPercent;
		public int yOffsetPercent;
	}

	void SetBackground()
	{
		string bkImgFile = @"C:\WINDOWS\Angler.bmp";
		LVBKIMAGE tLBI = new LVBKIMAGE();
		tLBI.pszImage = bkImgFile;
		tLBI.cchImageMax = bkImgFile.Length + 1;
		tLBI.ulFlags = LVBKIF_SOURCE_URL | LVBKIF_STYLE_TILE;
		SendMessage(listView1.Handle, LVM_SETBKIMAGE,0,tLBI);
		SendMessage(listView1.Handle,LVM_SETTEXTBKCOLOR,0,CLR_NONE); 
	}

You can use the following code sample to set an image to the ListView control in Microsoft Visual Basic .NET.

        Private Const NOERROR = &H0
        Private Const S_OK = &H0
        Private Const S_FALSE = &H1
        Private Const LVM_FIRST = &H1000
        Private Const LVM_SETBKIMAGE = (LVM_FIRST + 68)
        Private Const LVM_SETTEXTBKCOLOR = (LVM_FIRST + 38)
        Private Const LVBKIF_SOURCE_URL = &H2
        Private Const LVBKIF_STYLE_TILE = &H10
        Private Const CLR_NONE = &HFFFFFFFF

        Private Structure LVBKIMAGE
            Public ulFlags As Int32
            Public hbm As IntPtr
            Public pszImage As String
            Public cchImageMax As Int32
            Public xOffsetPercent As Int32
            Public yOffsetPercent As Int32
        End Structure

        Private Declare Sub CoUninitialize Lib "OLE32.DLL" ()

        Private Declare Function CoInitialize Lib "OLE32.DLL" ( _
            ByVal pvReserved As Int32 _
        ) As Int32

        Private Declare Function SendMessage Lib "user32" _
            Alias "SendMessageA" ( _
            ByVal hwnd As IntPtr, _
            ByVal wMsg As Int32, _
            ByVal wParam As Int32, _
            ByVal lParam As Int32 _
        ) As Int32

        Private Declare Function SendMessage Lib "user32" _
            Alias "SendMessageA" ( _
            ByVal hwnd As IntPtr, _
            ByVal wMsg As Int32, _
            ByVal wParam As Int32, _
            ByRef lParam As LVBKIMAGE _
        ) As Int32

        Private Sub SetBackground()
            Dim sI As String
            Dim lHDC As Int32
            sI = "C:\WINDOWS\Angler.bmp"
            Dim tLBI As LVBKIMAGE
            tLBI.pszImage = sI & ControlChars.NullChar
            tLBI.cchImageMax = Len(sI) + 1
            tLBI.ulFlags = LVBKIF_SOURCE_URL Or LVBKIF_STYLE_TILE
            SendMessage(Me.ListView1.Handle, LVM_SETBKIMAGE, 0, tLBI)
            Dim res As Int32 = SendMessage( _
                Me.ListView1.Handle, _
                LVM_SETTEXTBKCOLOR, _
                0, _
                CLR_NONE _
            )
        End Sub

Note We recommend that you call the CoInitialize function when the application is initialized. Then, call the CoUninitialize function when the application is closed.