수안이의 컴퓨터 연구실 :: Using Drop-Down Buttons in a Toolbar Control (드랍다운 툴바 사용하기)

원본 : http://www.sarangnamu.net/basic/basic_v ··· ory%3D33

To implement a drop-down button

Once your CToolBarCtrl object has been created, set the TBSTYLE_EX_DRAWDDARROWS style, using the following code:

m_wndToolBar.GetToolBarCtrl().SetExtendedStyle(TBSTYLE_EX_DRAWDDARROWS);

Set the TBSTYLE_DROPDOWN style for any new (InsertButton or AddButtons) or existing (SetButtonInfo) buttons that will be drop-down buttons. The following example demonstrates modifying an existing button in a CToolBarCtrl object:

TBBUTTONINFO tbi;

tbi.dwMask= TBIF_STYLE;
tbi.cbSize= sizeof(TBBUTTONINFO);
m_wndToolBar.GetToolBarCtrl().GetButtonInfo(ID_EDIT_CUT, &tbi);
tbi.fsStyle |= TBSTYLE_DROPDOWN;
m_wndToolBar.GetToolBarCtrl().SetButtonInfo(ID_EDIT_CUT, &tbi);

Add a WM_NOTIFY handler to the parent class of the toolbar object.

In the new handler, check for the TBN_DROPDOWN notification, using the following code:

#define lpnm ((LPNMHDR)lParam)
#define lpnmTB ((LPNMTOOLBAR)lParam)

switch(lpnm->code)
{
case TBN_DROPDOWN:
//drop down button was hit
//handle appropriately
. . .
return FALSE; //indicates the TBN_DROPDOWN
//notification was handled.
}

If the TBN_DROPDOWN notification has been sent, display the appropriate popup menu. The following code demonstrates one method:

CMenu menu;
VERIFY(menu.LoadMenu(IDR_MENU1));
CMenu* pPopup = menu.GetSubMenu(0);
ASSERT(pPopup != NULL);
pPopup->TrackPopupMenu(TPM_RIGHTALIGN |
TPM_RIGHTBUTTON, x, y, this);

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