private void SendStopMessageToProcess(int pid)
{
Logger.LogInformation($"Sending shutdown request to {pid}");
var found = false;
WindowsNativeMethods.EnumWindows((ptr, param) => {
WindowsNativeMethods.GetWindowThreadProcessId(ptr, out var windowProcessId);
if (pid == windowProcessId)
{
// 256 is the max length
var className = new StringBuilder(256);
if (WindowsNativeMethods.GetClassName(ptr, className, className.Capacity) == 0)
{
throw new InvalidOperationException($"Unable to get window class name: {Marshal.GetLastWin32Error()}");
}
if (!string.Equals(className.ToString(), "IISEXPRESS", StringComparison.OrdinalIgnoreCase))
{
// skip windows without IISEXPRESS class
return(true);
}
var hWnd = new HandleRef(null, ptr);
if (!WindowsNativeMethods.PostMessage(hWnd, 0x12, IntPtr.Zero, IntPtr.Zero))
{
throw new InvalidOperationException($"Unable to PostMessage to process {pid}. LastError: {Marshal.GetLastWin32Error()}");
}
found = true;
return(false);
}
return(true);
}, IntPtr.Zero);
if (!found)
{
throw new InvalidOperationException($"Unable to find main window for process {pid}");
}
}
private void SendStopMessageToProcess(int pid)
{
var found = false;
var extraLogging = false;
var retryCount = 5;
while (!found && retryCount > 0)
{
Logger.LogInformation($"Sending shutdown request to {pid}");
WindowsNativeMethods.EnumWindows((ptr, param) => {
WindowsNativeMethods.GetWindowThreadProcessId(ptr, out var windowProcessId);
if (extraLogging)
{
Logger.LogDebug($"EnumWindow returned {ptr} belonging to {windowProcessId}");
}
if (pid == windowProcessId)
{
// 256 is the max length
var className = new StringBuilder(256);
if (WindowsNativeMethods.GetClassName(ptr, className, className.Capacity) == 0)
{
throw new InvalidOperationException($"Unable to get window class name: {Marshal.GetLastWin32Error()}");
}
if (!string.Equals(className.ToString(), "IISEXPRESS", StringComparison.OrdinalIgnoreCase))
{
Logger.LogDebug($"Skipping window {ptr} with class name {className}");
// skip windows without IISEXPRESS class
return(true);
}
var hWnd = new HandleRef(null, ptr);
if (!WindowsNativeMethods.PostMessage(hWnd, 0x12, IntPtr.Zero, IntPtr.Zero))
{
throw new InvalidOperationException($"Unable to PostMessage to process {pid}. LastError: {Marshal.GetLastWin32Error()}");
}
found = true;
return(false);
}
return(true);
}, IntPtr.Zero);
if (!found)
{
Thread.Sleep(100);
}
// Add extra logging if first try was unsuccessful
extraLogging = true;
retryCount--;
}
if (!found)
{
throw new InvalidOperationException($"Unable to find main window for process {pid}");
}
}
