DOCUMENT:Q185477 13-MAY-1998 [vbwin] TITLE :BUG: ActiveX Control in MDI Child Form Does Not Maintain Focus PRODUCT :Microsoft Visual Basic for Windows PROD/VER:WINDOWS:5.0 OPER/SYS:WINDOWS KEYWORDS: ====================================================================== --------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, version 5.0 --------------------------------------------------------------------- SYMPTOMS ======== A multiple document interface (MDI) child form contains an ActiveX control, and the ActiveX control has the focus. When you leave and return to the MDI child form, the focus does not return to the ActiveX control. RESOLUTION ========== To work around this problem, add Me.SetFocus to the GotFocus event of all ActiveX controls in the MDI child form. For Example: Private Sub RichTextBox1_GotFocus() Me.SetFocus End Sub STATUS ====== Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available. MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- 1. Start a new Standard EXE project in Visual Basic. Form1 is created by default. 2. Add a reference to the Microsoft Rich TextBox Control 5.0 by completing the following steps: a. From the Project menu, click Components to display the Components dialog box. b. In the Controls tab, check Microsoft Rich Textbox Control 5.0. c. Click OK to close the Components dialog box. 3. Add a TextBox and a Rich TextBox control to Form1. Set the MDIChild property of Form1 to True. 4. Add an MDI form to the project. From the Project menu, click Add MDI form. MDIForm1 is created by default. 5. Add a PictureBox control to the MDI form. 6. On the Run menu, click Start (or press the F5 key) to start the program. 7. Click on the TextBox control, and then click on the PictureBox control. 8. Click anywhere on the MDI child form except in the TextBox. Note that the cursor goes to the TextBox. 9. Repeat the same action but use the Rich TextBox control instead. Results: The cursor does not return to the Rich TextBox control. To work around this problem, copy the following code to the code window of Form1: Option Explicit Private Sub RichTextBox1_GotFocus() Me.SetFocus End Sub Additional query words: kbActiveX kbCtrl kbVBp kbVBp500Bug kbDSupport kbdsd ====================================================================== Version : WINDOWS:5.0 Platform : WINDOWS Issue type : kbbug Solution Type : kbpending ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1998.