PRB: Infinite Loop When Buttons are Selected With Arrow Key

 Last reviewed: January 15, 1998
Article ID: Q179366
The information in this article applies to:
  • Microsoft Win32 Software Development Kit (SDK)

SYMPTOMS

When a dialog box appears in response to a user pressing an arrow key to select an option button on a dialog box, the user cannot immediately close the dialog box by selecting the OK button.

CAUSE

IsDialogMessage causes multiple BN_CLICKED messages to be sent when the focus is on an option button. This is due to the simulation of what happens when the option button has the BS_AUTORADIOBUTTON style.

RESOLUTION

Use the dialog editor to remove the BS_AUTORADIOBUTTON style from the option button, and then call the CheckRadioButton member function in each of the radio button handlers.

STATUS

This behavior is by design.

MORE INFORMATION

NOTE: Removing the BS_AUTORADIOBUTTON style will not allow DDX to work with the option buttons.

(c) Microsoft Corporation 1997, All Rights Reserved. Contributions by Isaac Varon, Microsoft Corporation 

Keywords          : UsrCtl UsrDlgs UsrInp
Platform          : winnt
Issue type        : kbprb

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Last reviewed: January 15, 1998
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