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control focus events

Hi experts,

I need to know what event gets triggered when a dialog control gets focus.

For example, my property page has several static labels, checkboxes, combo boxes, text entry fields. As the user tabs to each one I need to announce what they should do.

Can you help me?

Thanks
marisa

SOLUTION

rcarlan

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nonubik

You can try to trap WM_KEYDOWN with VK_TAB in PreTranslateMessage method of your CDialog derived class and then ask where's teh focus and act accordingly.

rcarlan

Focus can be gain/lost through mouse actions as well as through accelerator keys (i.e. keyboard shortcuts), in addition to Tab and Shift+Tab. Handling VK_TAB alone will only get you so far.

Radu

marisademeglio

ASKER

Tab/shift-tab might work for me, since i will be playing an audio prompt as part of a self-voicing interface. which would get annoying if it were triggered by any action. but I understand Radu's point.

anyway, how would I ask "where's the focus?"

rcarlan

HWND GetFocus();
CWnd* CWnd::GetFocus(); // static

marisademeglio

ASKER

How do I catch keyboard events in a dialog? WM_KEYUP and KEYDOWN aren't responsive..

nonubik, you mentioned PreTranslateMessage... How do I use it?

thanks
marisa

ASKER CERTIFIED SOLUTION

nonubik

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