private unsafe int GetGroupHeaderHeight()
{
NativeMethods.LVGROUPMETRICS metric = new NativeMethods.LVGROUPMETRICS(sizeof(NativeMethods.LVGROUPMETRICS), NativeMethods.LVGMF_BORDERSIZE);
XSendMessage.XSend(_hwnd, NativeMethods.LVM_GETGROUPMETRICS, IntPtr.Zero, new IntPtr(&(metric.cbSize)), metric.cbSize, XSendMessage.ErrorValue.NoCheck);
return(metric.Top + padding);
}
/// <summary>
/// Modify the space between groups
/// </summary>
/// <returns></returns>
protected int SetGroupSpacing() {
if (this.ListView.SpaceBetweenGroups <= 0)
return 0;
NativeMethods.LVGROUPMETRICS metrics = new NativeMethods.LVGROUPMETRICS();
metrics.cbSize = ((uint)Marshal.SizeOf(typeof(NativeMethods.LVGROUPMETRICS)));
metrics.mask = (uint)GroupMetricsMask.LVGMF_BORDERSIZE;
metrics.Bottom = (uint)this.ListView.SpaceBetweenGroups;
return NativeMethods.SetGroupMetrics(this.ListView, this.GroupId, metrics);
}
