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The ITfLangBarItemButton interface is implemented by a language bar button provider and used by the language bar manager to obtain information about a button item on the language bar.
The language bar manager obtains an instance of this interface by calling QueryInterface on the ITfLangBarItem passed to ITfLangBarItemMgr::AddItem.
Inheritance
The ITfLangBarItemButton interface inherits from the IUnknown interface. ITfLangBarItemButton also has these types of members:
Methods
The ITfLangBarItemButton interface has these methods.
| ITfLangBarItemButton::GetIcon ITfLangBarItemButton::GetIcon method |
| ITfLangBarItemButton::GetText ITfLangBarItemButton::GetText method |
| ITfLangBarItemButton::InitMenu This method is not used if the button item does not have the TF_LBI_STYLE_BTN_MENU style. (ITfLangBarItemButton.InitMenu) |
| ITfLangBarItemButton::OnClick This method is not used if the button item does not have the TF_LBI_STYLE_BTN_BUTTON style. (ITfLangBarItemButton.OnClick) |
| ITfLangBarItemButton::OnMenuSelect This method is not used if the button item does not have the TF_LBI_STYLE_BTN_MENU style. (ITfLangBarItemButton.OnMenuSelect) |
Remarks
A language bar button functions as a pushbutton, toggle button, or a menu on the language bar.
If the button has the TF_LBI_STYLE_BTN_BUTTON style, the button acts as a pushbutton that the user can click with the mouse. When the user clicks the button, ITfLangBarItemButton::OnClick is called. ITfLangBarItemButton::InitMenu and ITfLangBarItemButton::OnMenuSelect are not used.
If the button has the TF_LBI_STYLE_BTN_TOGGLE style, the button functions similar to a check box that the user can select or deselect with the mouse. When the user clicks the button, ITfLangBarItemButton::OnClick is called. ITfLangBarItemButton::InitMenu and ITfLangBarItemButton::OnMenuSelect are not used.
If the button has the TF_LBI_STYLE_BTN_MENU style, the button acts like a top-level menu item. When the user clicks the button, ITfLangBarItemButton::InitMenu is called. If the user selects an item in the menu, ITfLangBarItemButton::OnMenuSelect is called. ITfLangBarItemButton::OnClick is not used.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | ctfutb.h |
| Redistributable | TSF 1.0 on Windows 2000 Professional |