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Retrieves information about the state of the specified button in a toolbar, such as whether it is enabled, pressed, or checked.
Parameters
-
wParam
-
Command identifier of the button for which to retrieve information.
-
lParam
- Must be zero.
Return value
Returns the button state information if successful, or -1 otherwise. The button state information can be a combination of the values listed in Toolbar Button States.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|