tb-setbuttonsize.md

title	description	ms.assetid	keywords	topic_type	api_name	api_location	api_type	ms.topic	ms.date
TB_SETBUTTONSIZE message (Commctrl.h)	Sets the size of buttons on a toolbar.	ef6beed7-a3d6-4379-b9c1-c64a5e33ce78	TB_SETBUTTONSIZE message Windows Controls	apiref	TB_SETBUTTONSIZE	Commctrl.h	HeaderDef	reference	05/31/2018

TB_SETBUTTONSIZE message

Sets the size of buttons on a toolbar.

Parameters

wParam

Must be zero.

lParam

The LOWORD specifies the width, in pixels, of the buttons. The HIWORD specifies the height, in pixels, of the buttons.

Return value

Returns TRUE if successful, or FALSE otherwise.

Remarks

TB_SETBUTTONSIZE should generally be called after adding buttons.

Use TB_SETBUTTONWIDTH to set the maximum and minimum allowed widths for buttons before they are added. Use TB_SETBUTTONSIZE to set the actual size of buttons.

Examples

The following example code sets the width of buttons to 80 pixels and the height to 30 pixels.

// hWndToolbar is a handle to the toolbar window.
SendMessage(hWndToolbar, TB_SETBUTTONSIZE, 0, MAKELPARAM(80, 30);

Requirements

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