Visual Basic for Applications/Clipboard VBA

Summary
There are three main ways to pass text to and from the clipboard with VBA code.
 * The DataObject method:
 * This is perhaps the simplest implementation.
 * Its main restriction is that the contents of the clipboard will be lost when the launching application is closed; generally this is not a problem when running Excel modules, but should be borne in mind.
 * Some users elsewhere report bugs. See DataObject Bugs Forum for details of the bugs and one suggested fix. All of the procedures on this page are tested and work well in both Windows 7 and Windows 8.1 for Excel 2010.  The DataObject method has recently been adopted for the VBA Indenter module, in this same series.
 * Other methods avoid these restrictions. In the unlikely event of problems with these procedures, either of the next two methods would suffice.
 * An example of the DataObject method is given in section two of this page.
 * User form control methods:
 * When user forms are to be displayed, then the copy and paste methods of the text box can be used. These methods work well and are well tested.
 * When no user form is to be displayed, a hidden form can be used. The form with a text box, is loaded but never displayed.   Then, the invisible user form's controls can still then be coded as normal. The text box must have its Multiline property set to true for most useful text transfers.   It will be found best, in general,to set the form's ShowModal property to False; this allows for convenient code tracing and avoids many other confusions.
 * An example of the hidden user form method is given in section four. Another example in section three, for a visible user form, shows how to track the active text box prior to copy.
 * API methods:
 * These methods make use of Windows libraries, and have copious declarations in their module headings. That said, they work well, and are described by Microsoft documentation as being the most suitable.
 * One example of API use is displayed in section five. See Send-Information-to-the-Clipboard for more details.

DataObject Method

 * These methods make used of a DataObject . They are by far the most adaptable, since any text that can be placed in a variable can then be placed onto the clipboard using the PutInClipboard method.  Text can also be brought into a VBA string variable with the GetFromClipboard method. The procedures CopyToClip and GetFromClip in the example below first send text to the clipboard, then fetch it again, before displaying the text in a message box.  Set a reference to Microsoft Forms 2 in the editor options for this; if you cannot find it just add a user form to your project and it will be added to the selections.
 * Reports of bugs in DataObject methods are reported elsewhere.  These apply to Windows versions beyond Win 7, and are reported to involve an unusual persistence between the object and the clipboard.   If difficulty is found with these methods then either the dummy userform method or the API methods could be tried.

Visible User Form Method
The code module below provides the VBA code for a form module, (shown here as UserForm1). In it there are command button click routines for textbox Copy and Paste. To use the copy procedure the user simply selects some text then presses the button on the user form. To paste the contents of the clipboard into a textbox, the user must first place the insertion point somewhere within a textbox before pressing the requisite button.

In order to clarify which textbox is active, there is a mouse-up event for each, where a number is loaded into a module-level variable whenever a mouse is used in the box. Although this code is made for three textboxes, it can easily be extended to any number.

The code assumes that there is a user form UserForm1, with TextBox1, TextBox2, TextBox3, CommandButton1 and CommandButton2 in it. In addition, note that there is a module level variable in the code. Since the VBA code is fairly generic it applies to most MS Office applications.

Hidden User Form Method
This code should be placed in a standard module. The project needs a user form called Temp, with a single TextBox1 set with MultiLine=true. TextBox contents are always text.

API Method
'''The code below was tested on an Office 2010 version of Excel, 32 bit system, and worked well. Since that time, with 64 bit 2019 Excel, the code will not work in its current state, but needs further changes to the declarations for 64 bit use.'''

The following VBA code makes use of API calls, and is recommended by Microsoft in their MS Access page Send-Information-to-the-Clipboard. Such methods should overcome the current bugs in the DataObject methods for Windows 8 and 10. The code should be copied into a standard module in its entirety.