internal Win32Window(string title, int width, int height)
{
Width = width;
Height = height;
_wndProc = WndProc;
var wndClass = new User32.WndClass
{
lpfnWndProc = _wndProc,
style = 0x20,
hbrBackground = new IntPtr(1),
lpszClassName = "coreloader"
};
User32.RegisterClassA(ref wndClass);
const int offset = 50;
var rect = new User32.Rect
{
top = offset,
left = offset,
bottom = offset + height,
right = offset + width
};
var style = WindowStyles.WS_OVERLAPPEDWINDOW;
User32.AdjustWindowRect(ref rect, style, false);
NativeHandle = User32.CreateWindowExA(0, wndClass.lpszClassName, title, style, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
const int sizeofMsg = 48;
_msg = Marshal.AllocHGlobal(sizeofMsg);
}
/// <summary>
/// Initializes a new instance of the <see cref="TrayMessageWindow"/> class.
/// </summary>
/// <param name="className">Name of the window class to be used with this window.</param>
public TrayMessageWindow(string className)
{
if (className == null || className == string.Empty)
{
throw new System.Exception("Provided class name cannot be empty");
}
windowProcDelegate = TrayWndProc;
var windowClass = new User32.WndClass
{
ClassName = className,
WindowProcedure = Marshal.GetFunctionPointerForDelegate(windowProcDelegate),
};
// Register the class name
ushort classId = User32.RegisterClassW(ref windowClass);
if (classId == 0 && Marshal.GetLastWin32Error() != User32.ErrorClassAlreadyExists)
{
ErrorHandling.ErrorHandler.Handle("Cannot register Tray Window class", ErrorHandling.LogLevel.Error);
Environment.Exit(1);
}
// Finally, create the window
windowHandle = User32.CreateWindowExW(
0,
className,
string.Empty,
0,
0,
0,
0,
0,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero
);
}
