FIX: The value of the ImeMode property automatically changes to the Off value in the .NET Framework 2.0

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Consider the following scenario. An application that is built on the Microsoft .NET Framework 2.0 contains a Microsoft Windows Forms control. You set the ImeMode property of the control to a specific value that is not the NoControl value. The focus is on the control. Then, you perform one of the following operations:
  • You move the focus to another window. Then, you move the focus back to the control.
  • You minimize the window that contains the control. Then, you restore the window.
In this scenario, the value of the ImeMode property automatically changes to the Off value.

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next .NET Framework 2.0 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.


You must have the .NET Framework 2.0 installed to apply this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
File nameFile versionFile sizeDateTime
To work around this problem, implement the following code.
public partial class Form1 : Form{    private Control focusedControl;    private ImeMode propIme;    public Form1()    {        InitializeComponent();        this.Activated += new EventHandler(Form1_Activated);        this.Deactivate += new EventHandler(Form1_Deactivate);    }    private void Form1_Activated(object sender, EventArgs e)    {        if (focusedControl != null)        {            focusedControl.ImeMode = propIme;        }    }    private void Form1_Deactivate(object sender, EventArgs e)    {        Save_ImeMode();    }    private void Save_ImeMode()    {        Control tmpFocusedControl = null;        foreach (Control c in Controls)        {            if (c.Focused)            {                if (c is TextBox)                {                    tmpFocusedControl = c as TextBox;                    break;                }            }            if (c.HasChildren)            {                foreach (Control c2 in c.Controls)                {                    if (c2.Focused && c2 is TextBox)                    {                        tmpFocusedControl = c2 as TextBox;                        break;                    }                }            }        }        if (tmpFocusedControl != null)        {            focusedControl = tmpFocusedControl;            propIme = focusedControl.ImeMode;        }    }    protected override void WndProc(ref Message m)    {        if (m.Msg == WM_SYSCOMMAND)        {            if (m.WParam.ToInt32() == SC_MINIMIZE)            {                Save_ImeMode();            }        }        base.WndProc(ref m);    }    const int SC_MINIMIZE = 0xF020;    const int WM_SYSCOMMAND = 0x0112;}
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Article ID: 939783 - Last Review: 01/16/2015 10:51:00 - Revision: 3.0

Microsoft .NET Framework 2.0

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