private static Image GetRealScreenshot(int width, int height, IViewObject viewObject)
{
try
{
var image = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
var rect = new RECT {
left = 0, top = 0, right = width, bottom = height
};
var tdevice = new DVTARGETDEVICE {
tdSize = 0,
};
using (var graphics = Graphics.FromImage(image))
{
var hdc = graphics.GetHdc();
viewObject.Draw(1, 0, IntPtr.Zero, tdevice, IntPtr.Zero, hdc, rect, null, IntPtr.Zero, IntPtr.Zero);
graphics.ReleaseHdc(hdc);
}
return(image);
}
catch
{
return(null);
}
}
/// <summary>
/// <see cref="WebBrowser.Document"/> (<see cref="HTMLDocument"/>) から艦これの Flash 要素を特定し、指定したパスにスクリーンショットを保存します。
/// </summary>
/// <remarks>
/// 本スクリーンショット機能は、「艦これ 司令部室」開発者の @haxe さんより多大なご協力を頂き実装できました。
/// ありがとうございました。
/// </remarks>
/// <param name="path"></param>
private void SaveCore(string path)
{
const string notFoundMessage = "艦これの Flash 要素が見つかりません。";
var document = this.AssociatedObject.Document as HTMLDocument;
if (document == null)
{
throw new Exception(notFoundMessage);
}
var gameFrame = document.getElementById("game_frame").document as HTMLDocument;
if (gameFrame == null)
{
throw new Exception(notFoundMessage);
}
var frames = document.frames;
var find = false;
for (var i = 0; i < frames.length; i++)
{
var item = frames.item(i);
var provider = item as IServiceProvider;
if (provider == null)
{
continue;
}
object ppvObject;
provider.QueryService(typeof(IWebBrowserApp).GUID, typeof(IWebBrowser2).GUID, out ppvObject);
var webBrowser = ppvObject as IWebBrowser2;
if (webBrowser == null)
{
continue;
}
var iframeDocument = webBrowser.Document as HTMLDocument;
if (iframeDocument == null)
{
continue;
}
//flash要素が<embed>である場合と<object>である場合を判別して抽出
IViewObject viewObject = null;
int width = 0, height = 0;
var swf = iframeDocument.getElementById("externalswf");
if (swf == null)
{
continue;
}
Func <dynamic, bool> function = target =>
{
if (target == null)
{
return(false);
}
viewObject = target as IViewObject;
if (viewObject == null)
{
return(false);
}
width = int.Parse(target.width);
height = int.Parse(target.height);
return(true);
};
if (!function(swf as HTMLEmbed) && !function(swf as HTMLObjectElement))
{
continue;
}
find = true;
var image = new Bitmap(width, height, PixelFormat.Format24bppRgb);
var rect = new RECT {
left = 0, top = 0, width = width, height = height,
};
var tdevice = new DVTARGETDEVICE {
tdSize = 0,
};
using (var graphics = Graphics.FromImage(image))
{
var hdc = graphics.GetHdc();
viewObject.Draw(1, 0, IntPtr.Zero, tdevice, IntPtr.Zero, hdc, rect, null, IntPtr.Zero, IntPtr.Zero);
graphics.ReleaseHdc(hdc);
}
image.Save(path, ImageFormat.Png);
break;
}
if (!find)
{
throw new Exception(notFoundMessage);
}
}
