/// <summary>
/// A subitem (a column value) of an item of this list view.
/// </summary>
public SystemListViewItem this[int index, int subIndex] {
get {
LVITEM lvi = new();
lvi.cchTextMax = 300;
lvi.iItem = index;
lvi.iSubItem = subIndex;
lvi.stateMask = 0xffffffff;
lvi.mask = LVIF_IMAGE | LVIF_STATE | LVIF_TEXT;
ProcessMemoryChunk tc = ProcessMemoryChunk.Alloc(sw.Process, 301);
lvi.pszText = tc.Location;
ProcessMemoryChunk lc = ProcessMemoryChunk.AllocStruct(sw.Process, lvi);
ApiHelper.FailIfZero(SystemWindow.SendMessage(new HandleRef(sw, sw.HWnd), LVM_GETITEM, IntPtr.Zero,
lc.Location));
lvi = (LVITEM)lc.ReadToStructure(0, typeof(LVITEM));
lc.Dispose();
if (lvi.pszText != tc.Location)
{
tc.Dispose();
tc = new ProcessMemoryChunk(sw.Process, lvi.pszText, lvi.cchTextMax);
}
byte[] tmp = tc.Read();
string title = Encoding.Default.GetString(tmp);
if (title.IndexOf('\0') != -1)
{
title = title.Substring(0, title.IndexOf('\0'));
}
int image = lvi.iImage;
uint state = lvi.state;
tc.Dispose();
return(new SystemListViewItem(sw, index, title, state, image));
}
}
/// <summary>
/// Sets the selected-state of the item.
/// </summary>
/// <param name="rowIndex">Index of the row.</param>
/// <param name="selected">if set to <c>true</c> the item will be selected.</param>
public void SetItemSelectedState(int rowIndex, bool selected)
{
LVITEM lvi = new LVITEM();
lvi.stateMask = (uint)(ListViewItemState.LVIS_SELECTED);
lvi.state = selected ? (uint)(ListViewItemState.LVIS_SELECTED) : 0;
ProcessMemoryChunk lc = ProcessMemoryChunk.AllocStruct(sw.Process, lvi);
SystemWindow.SendMessage(new HandleRef(sw, sw.HWnd), LVM_SETITEMSTATE, new IntPtr(rowIndex), lc.Location);
lc.Dispose();
}
/// <summary>
/// Get an element of this list box by index.
/// </summary>
public string this[int index] {
get {
if (index < 0 || index >= Count)
{
throw new ArgumentException("Argument out of range");
}
int length = SystemWindow.SendGetMessage(LB_GETTEXTLEN, (uint)index);
StringBuilder sb = new(length);
SystemWindow.SendMessage(new HandleRef(this, SystemWindow.HWnd), LB_GETTEXT, new IntPtr(index), sb);
return(sb.ToString());
}
}
internal static SystemTreeViewItem[] FindSubItems(SystemWindow sw, IntPtr hParent)
{
List <SystemTreeViewItem> result = new List <SystemTreeViewItem>();
IntPtr hChild;
HandleRef hr = new HandleRef(sw, sw.HWnd);
if (hParent == IntPtr.Zero)
{
hChild = SystemWindow.SendMessage(hr, TVM_GETNEXTITEM, new IntPtr(TVGN_ROOT), IntPtr.Zero);
}
else
{
hChild = SystemWindow.SendMessage(hr, TVM_GETNEXTITEM, new IntPtr(TVGN_CHILD), hParent);
}
while (hChild != IntPtr.Zero)
{
result.Add(new SystemTreeViewItem(sw, hChild));
hChild = SystemWindow.SendMessage(hr, TVM_GETNEXTITEM, new IntPtr(TVGN_NEXT), hChild);
}
return(result.ToArray());
}
/// <summary>
/// Ensures that a list-view item is either entirely or partially visible, scrolling the list-view control if necessary.
/// </summary>
/// <param name="rowIndex">Index of the row.</param>
/// <param name="entirelyVisible">if set to <c>true</c> the item will be entirely visible.</param>
public void EnsureItemIsVisible(int rowIndex, bool entirelyVisible)
{
SystemWindow.SendMessage(new HandleRef(sw, sw.HWnd), LVM_ENSUREVISIBLE, new IntPtr(rowIndex), new IntPtr(entirelyVisible ? 1 : 0));
}
