TB_GETMAXSIZE message

Retrieves the total size of all of the visible buttons and separators in the toolbar.

Parameters

wParam

Must be zero.

lParam

Pointer to a SIZE structure that receives the size of the items.

Return value

Returns nonzero if successful, or zero otherwise.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	Commctrl.h