TB_ISBUTTONINDETERMINATE Overview  Group

The TB_ISBUTTONINDETERMINATE message determines whether the specified button in a toolbar is indeterminate.

TB_ISBUTTONINDETERMINATE 

wParam = (WPARAM) idButton; 

lParam = 0; 

 

Parameters

idButton

Command identifier of the button.

Return Values

Returns nonzero if the button is indeterminate or zero otherwise.