method ExplorerTree.ReplaceIcon ([Icon as Variant], [Index as Variant])
Adds a new icon, replaces an icon or clears the control's image list.

TypeDescription
Icon as Variant A Variant expression that specifies the icon to add or insert, as one of the following options:
  • a long expression that specifies the handle of the icon (HICON)
  • a string expression that indicates the path to the picture file
  • a string expression that defines the picture's content encoded as BASE64 strings using the eXImages tool
  • a Picture reference, which is an object that holds image data. It is often used in controls like PictureBox, Image, or in custom controls (e.g., IPicture, IPictureDisp)

If the Icon parameter is 0, it specifies that the icon at the given Index is removed. Furthermore, setting the Index parameter to -1 removes all icons.

By default, if the Icon parameter is not specified or is missing, a value of 0 is used.

Index as Variant A long expression that defines the index of the icon to insert or remove, as follows:
  • A zero or positive value specifies the index of the icon to insert (when Icon is non-zero) or to remove (when the Icon parameter is zero)
  • A negative value clears all icons when the Icon parameter is zero

By default, if the Index parameter is not specified or is missing, a value of -1 is used.

ReturnDescription
LongA long expression that indicates the index of the icon in the images collection
Use the ReplaceIcon property to add, remove or replace an icon in the control's images collection. Also, the ReplaceIcon property can clear the images collection. Use the Images method to attach an image list to the control.  

The following sample shows how to add a new icon to control's images list:

 i = ExplorerTree1.ReplaceIcon( LoadPicture("d:\icons\help.ico").Handle), where i is the index to insert the icon

The following sample shows how to replace an icon into control's images list::

 i = ExplorerTree1.ReplaceIcon( LoadPicture("d:\icons\help.ico").Handle, 0), in this case the i is zero, because the first icon was replaced.  

The following sample shows how to remove an icon from control's images list:

 ExplorerTree1.ReplaceIcon 0,  i, in this case the i must be the index of the icon that follows to be removed

The following sample shows how to clear the control's icons collection:

 ExplorerTree1.ReplaceIcon 0,  -1