private void UpdateThumbnail()
{
if (_targetHwnd.ToInt32() == 0) //no target
{
return;
}
var props = new DwmThumbnailProperties();
props.dwFlags = 0x11; //destination and client area only
//props.rcDestination.Left = 0;// this.Bounds.Left;
//props.rcDestination.Right = this.Bounds.Width;
//props.rcDestination.Top = 0;// this.Bounds.Top;
//props.rcDestination.Bottom = this.Bounds.Height;
props.fSourceClientAreaOnly = true;
//Rect targetWindow;
//Rect targetClient;
bool result = Win32.GetClientRect(this.Handle, out props.rcDestination);
//props.rcDestination.Left = -1;// this.Bounds.Left;
//props.rcDestination.Top = -1;// this.Bounds.Top;
//props.rcDestination.Right++;
//props.rcDestination.Bottom++;
//bool result = Win32.GetWindowRect(, out props.rcDestination);
//props.rcDestination.Right = this.Bounds.Width * props.rcDestination.Right / this.Bounds.Width;
//props.rcDestination.Bottom = this.Bounds.Height;
Win32.DwmUpdateThumbnailProperties(_thumbHandle, ref props);
}
public static extern void DwmUpdateThumbnailProperties(IntPtr hThumbnailId,ref DwmThumbnailProperties ptnProperties);
private void UpdateThumbnail()
{
if (_targetHwnd.ToInt32() == 0) //no target
return;
var props = new DwmThumbnailProperties();
props.dwFlags = 0x11; //destination and client area only
//props.rcDestination.Left = 0;// this.Bounds.Left;
//props.rcDestination.Right = this.Bounds.Width;
//props.rcDestination.Top = 0;// this.Bounds.Top;
//props.rcDestination.Bottom = this.Bounds.Height;
props.fSourceClientAreaOnly = true;
//Rect targetWindow;
//Rect targetClient;
bool result = Win32.GetClientRect(this.Handle, out props.rcDestination);
//props.rcDestination.Left = -1;// this.Bounds.Left;
//props.rcDestination.Top = -1;// this.Bounds.Top;
//props.rcDestination.Right++;
//props.rcDestination.Bottom++;
//bool result = Win32.GetWindowRect(, out props.rcDestination);
//props.rcDestination.Right = this.Bounds.Width * props.rcDestination.Right / this.Bounds.Width;
//props.rcDestination.Bottom = this.Bounds.Height;
Win32.DwmUpdateThumbnailProperties(_thumbHandle, ref props);
}
public static extern void DwmUpdateThumbnailProperties(IntPtr hThumbnailId, ref DwmThumbnailProperties ptnProperties);