Advanced MFC Programming

Chapter 5. Common Controls
m_tabCtrl.SetImageList(pilTab);
tc_item.mask=TCIF_TEXT | TCIF_IMAGE;
tc_item.pszText="Icon";
tc_item.iImage=0;
m_tabCtrl.InsertItem(0, &tc_item);
tc_item.pszText="Small Icon";
tc_item.iImage=1;
m_tabCtrl.InsertItem(1, &tc_item);
tc_item.pszText="List";
tc_item.iImage=2;
m_tabCtrl.InsertItem(2, &tc_item);
tc_item.pszText="Report";
tc_item.iImage=3;
m_tabCtrl.InsertItem(3, &tc_item);
}
return TRUE;
Macro TAB_BMP_WIDTH and TAB_BMP_HEIGHT are defined as the width and height of the bitmaps. In
function CCCtlDlg::Destroy(), the following statements are added to delete the tab items and the image
list used by the tab control:
void CCCtlDlg::OnDestroy()
{
CImageList *pilCtrl;
……
}
pilCtrl=m_tabCtrl.GetImageList();
pilCtrl->DeleteImageList();
m_tabCtrl.DeleteAllItems();
Handling Tab Control Message
We trap message TCN_SELCHANGE to respond to the changes on the tab control. After receiving this
message, we call function CTabCtrl::GetCurSel() to obtain the newly selected item, then call function
::SetWindowLong(…) to set the style of the list control accordingly. In the sample, function
CCCtlDlg::OnSelchangeTab(…) is added to class CCCtlDlg through using Class Wizard for handling this
message. It is implemented as follows:
void CCCtlDlg::OnSelchangeTab(NMHDR* pNMHDR, LRESULT* pResult)
{
LONG lStyle;
lStyle=GetWindowLong(m_listCtrl.GetSafeHwnd(), GWL_STYLE);
lStyle&=~(LVS_TYPEMASK);
switch(m_tabCtrl.GetCurSel())
{
case 0:
{
lStyle|=LVS_ICON;
break;
}
case 1:
{
lStyle|=LVS_SMALLICON;
break;
}
case 2:
{
lStyle|=LVS_LIST;
break;
}
case 3:
{
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