Radio Button Lockup with Tab Control
Timothy Dean
Outside of the tab control I have radio buttons. When I click on any of the
radio buttons, the app locks up. When I remove WS_EX_CONTROLPARENT from the
tab control, the lockup doesn't happen. Of course then I can't tab into the
tab control and tab through the child controls. Any idea what would cause
this? Thanks.
Timothy Dean
David Lowndes
Timothy,
Spy++ may be able to help you identify what's happening - it's
probably some message repeatedly being processed.
It may be that the tab control appears to be part of the radio button
grouping - try adding the WS_GROUP style to the tab control.
Dave
Ajay Kalra
this(or was it property page/sheet). Google brings something on this if used
with XP themes.
--
Ajay
"David Lowndes" <Dav...@example.invalid> wrote in message
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Joseph M. Newcomer
WS_GROUP flag set. This should solve the problem. It appears that the code might be
locking up trying to find the WS_GROUP that delimits the radio buttons.
One way to do this is to create a "Group Box" and set its tab order to be one past the
last radio button, and set its WS_GROUP attribute.
It sounds like you have hit a serious bug in how radio buttons are being handled, but the
fix I suggest here should avoid that bug. You might consider reporting this to Microsoft,
because it is a Really Bad Idea that it should happen.
Radio buttons work as follows
(*) WS_TABSTOP, WS_GROUP
( )
( )
( )
Whatever follows the radio buttons: WS_GROUP, and if an active control, WS_TABSTOP.
When you click a radio button, it races backwards in the tab order to the WS_GROUP control
that indicates the start of the radio group, and races forwards in the tab order to the
first WS_GROUP control that indicates that it is NOT part of the radio button set. The
button you click on is set, the other buttons are cleared (this is for
AutoRadioButton-style controls). It sounds like it is getting lost on the forward scan.
joe
Joseph M. Newcomer [MVP]
email: newc...@flounder.com
Web: http://www.flounder.com
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Timothy Dean
control after the final radio button with the WS_GROUP style, the problem is
solved. My first radio button always had the WS_GROUP style set. The funny
thing is that if I set the tab control to have WS_GROUP, it stilll locks up.
My current project is compiled in VS 2005. I wonder if it is fixed in VS
2008. Thanks.
Timothy Dean
"Joseph M. Newcomer" <newc...@flounder.com> wrote in message
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David Lowndes
>2008. Thanks.
I'd doubt it's anything to do with MFC - more likely just the way
Windows is.
Dave
Joseph M. Newcomer
support.
joe