WPF finishing papers call Win32Api

Original: WPF finishing papers call Win32Api

Chestnut is the most front window to make calls WIn32API 

Background code

  
  
[ DllImport("user32.dll")]
private static extern bool SetForegroundWindow(IntPtr hWnd);

//
Process process = null;
private void OPenButton_Click(object sender, RoutedEventArgs e)
{
process = new Process();
process.StartInfo.FileName = "iexplore.exe";
process.StartInfo.Arguments = Text_Path.Text;
process.Start();
}

private void TOPButton_Click(object sender, RoutedEventArgs e)
{
if (process != null)
{
var ptr = process.MainWindowHandle;
SetForegroundWindow(ptr);
}
}

private void FlushButton_Click(object sender, RoutedEventArgs e)
{
if (process != null)
{
var ptr = process.MainWindowHandle;
SetForegroundWindow(ptr);
SendKeys.SendWait( "{F5}");
}
}
 
 

Reception

  
  
<Grid>
<TextBox x:Name= "Text_Path" HorizontalAlignment= "Left" Height= "25" Margin= "0,34,0,0" TextWrapping= "Wrap" Text= "https://www.baidu.com" VerticalAlignment= "Top" Width= "251" />
<Button x:Name= "OPenButton" Content= "打开" HorizontalAlignment= "Left" Margin= "10,86,0,0" VerticalAlignment= "Top" Width= "75" Click= "OPenButton_Click"/>
<Button x:Name= "TOPButton" Content= "前台" HorizontalAlignment= "Left" Margin= "10,123,0,0" VerticalAlignment= "Top" Width= "75" Click= "TOPButton_Click"/>
<Button x:Name= "FlushButton" Content= "刷新" HorizontalAlignment= "Left" Margin= "10,160,0,0" VerticalAlignment= "Top" Width= "75" Click= "FlushButton_Click"/>

</Grid>
 
 

  SendKeys.SendWait ( "{F5}"); need to reference System.Windows.Forms.dll