TB_INDETERMINATE message

Sets or clears the indeterminate state of the specified button in a toolbar.

Parameters

wParam

Command identifier of the button whose indeterminate state is to be set or cleared.

lParam

The LOWORD is a BOOL that indicates whether to set or clear the indeterminate state. If TRUE, the indeterminate state is set. If FALSE, the state is cleared.

The HIWORD must be zero.

Return value

Returns TRUE if successful, or FALSE otherwise.

Requirements