public static void SetGroupHeaderColor(IntPtr aHandle, Color aColor)
{
if (Environment.OSVersion.Platform == PlatformID.Win32NT)
{
LVGROUPMETRICS groupMetrics = new LVGROUPMETRICS();
groupMetrics.cbSize = Marshal.SizeOf(typeof(LVGROUPMETRICS));
// set the mask to LVGMF_TEXTCOLOR to enable the new header color to take effect
groupMetrics.mask = LVGMF_TEXTCOLOR;
groupMetrics.crHeader = Color.FromArgb(0, aColor.R, aColor.G, aColor.B).ToArgb();
SendMessage(aHandle, LVM_SETGROUPMETRICS, 0, ref groupMetrics);
}
}
public static void SetGroupHeaderColor(IntPtr handle, int icolor)
{
var groupMetrics = new LVGROUPMETRICS();
Int32 ptrRetVal;
IntPtr wparam = new IntPtr();
IntPtr lparam = new IntPtr();
groupMetrics.cbSize = Marshal.SizeOf(groupMetrics);
groupMetrics.mask = ListViewAPI.LVGMF_TEXTCOLOR;
groupMetrics.crHeader = icolor;
lparam = System.Runtime.InteropServices.Marshal.AllocCoTaskMem(System.Runtime.InteropServices.Marshal.SizeOf(groupMetrics));
System.Runtime.InteropServices.Marshal.StructureToPtr(groupMetrics, lparam, false);
ptrRetVal = SendMessage(handle, LVM_SETGROUPMETRICS, wparam, lparam);
System.Runtime.InteropServices.Marshal.FreeCoTaskMem(lparam);
}
private unsafe void updateMetricsButton_Click(object sender, EventArgs e)
{
ListViewGroup group = listView1.Groups[0];
int id = (int)typeof(ListViewGroup).GetProperty("ID", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(group);
//listView1.MultiSelect = true;
var metrics = new LVGROUPMETRICS
{
cbSize = (uint)sizeof(LVGROUPMETRICS),
mask = LVGMF.BORDERSIZE | LVGMF.BORDERCOLOR
};
metrics.Right = 50;
metrics.Left = 50;
metrics.Top = 50;
metrics.Bottom = 50;
metrics.crRight = (uint)COLORREF.ColorToCOLORREF(Color.Red);
metrics.crLeft = (uint)COLORREF.ColorToCOLORREF(Color.Red);
metrics.crTop = (uint)COLORREF.ColorToCOLORREF(Color.Red);
metrics.crBottom = (uint)COLORREF.ColorToCOLORREF(Color.Red);
IntPtr r = User32.SendMessageW(listView1.Handle, (User32.WindowMessage)LVM.SETGROUPMETRICS, (IntPtr)id, ref metrics);
}
public static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, ref LVGROUPMETRICS lParam);
public static int SetGroupMetrics(ObjectListView olv, int groupId, LVGROUPMETRICS metrics)
{
return((int)NativeMethods.SendMessage(olv.Handle, LVM_SETGROUPMETRICS, groupId, ref metrics));
}
public static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, ref LVGROUPMETRICS lParam);
public static int SetGroupMetrics(ObjectListView olv, int groupId, LVGROUPMETRICS metrics) {
return (int)NativeMethods.SendMessage(olv.Handle, LVM_SETGROUPMETRICS, groupId, ref metrics);
}
public static int SetGroupMetrics(ObjectListView olv, int groupId, LVGROUPMETRICS metrics)
{
return((int)SendMessage(olv.Handle, 0x109b, groupId, ref metrics));
}
public static IntPtr SetGroupMetrics(ObjectListView olv, LVGROUPMETRICS metrics)
{
return(NativeMethods.SendMessage(olv.Handle, LVM_SETGROUPMETRICS, 0, ref metrics));
}
