Knowledge Base

BUG: vbCFRTF Clipboard Constant Stored Incorrectly

Article ID: 150189

Article Last Modified on 6/30/2004

Microsoft Visual Basic 4.0 Standard Edition
Microsoft Visual Basic 4.0 Professional Edition
Microsoft Visual Basic 4.0 Professional Edition
Microsoft Visual Basic 4.0 16-bit Enterprise Edition
Microsoft Visual Basic 4.0 32-Bit Enterprise Edition

This article was previously published under Q150189

SYMPTOMS

The built-in vbCFRTF constant is incorrectly stored as a long value in Microsoft Visual Basic. It should be stored as an integer. Consequently, if it is used in conjunction with the SetData method of the Clipboard object, that takes an integer parameter to describe format, an Overflow error is generated. This constant is located in the VB - Visual Basic Objects and procedures/ClipboardConstants section of the Microsoft Visual Basic Object Model.

STATUS

Microsoft has confirmed this to be an issue in the Microsoft products listed at the beginning of this article. Microsoft is researching this issue and will post new information here in the Microsoft Knowledge Base as it becomes available.

WORKAROUND

Instead of vbCFRTF, use the value &hBF01. For example, instead of the statement:

   Clipboard.SetText RichTextBox1.SelRTF, vbCFRTF

   Clipboard.SetText RichTextBox1.SelRTF, &hBF01

MORE INFORMATION

Steps to Reproduce Problem

Start a new project in Visual Basic. Form1 is created by default. Place a RichTextBox control on to Form1. Place the following code in the Click event for Form1:
```
      Private Sub Form1_Click()
         Clipboard.Clear
         Clipboard.SetText RichTextBox1.SelRTF, vbCFRTF
      End sub
						
```
Run the project by pressing F5. Type some text into the RTF control. Highlight the text, click on Form1, and an error is generated:
Run-time error '6'
Overflow
To work around this problem, change the code in the Click event of Form1 to:
```
      Private Sub Form1_Click()
         Clipboard.Clear
         Clipboard.SetText RichTextBox1.SelRTF, &hBF01
      End sub
						
```

Additional query words: 4.00 vb4win vb4all buglist4.00

Keywords: kbbug KB150189