private void Zoom(int zoomValue)
{
SHDocVw.IWebBrowser2 wb = (SHDocVw.IWebBrowser2)webBrowser1.ActiveXInstance;
SHDocVw.OLECMDID cmdZoom = (SHDocVw.OLECMDID) 63;
Object pvaIn = zoomValue;
Object pvaOut = null;
wb.ExecWB(cmdZoom, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT, ref pvaIn, ref pvaOut);
}
private int Zoom()
{
SHDocVw.IWebBrowser2 browserInst = ((SHDocVw.IWebBrowser2)(this.ActiveXInstance));
object pvaIn = aZoomLevel[nIdxZoom];
object pvaOut = 0;
while (browserInst.Busy)
{
;
}
browserInst.ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM,
SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT, ref pvaIn, ref pvaOut);
return(aZoomLevel[nIdxZoom]);
}
private void Zoom(object zoomPercent)
{
// grab a handle to the underlying ActiveX object
IServiceProvider serviceProvider = null;
if (this.webReport.Document != null)
{
serviceProvider = (IServiceProvider)this.webReport.Document;
}
Guid serviceGuid = SID_SWebBrowserApp;
Guid iid = typeof(SHDocVw.IWebBrowser2).GUID;
SHDocVw.IWebBrowser2 browserInst = (SHDocVw.IWebBrowser2)serviceProvider.QueryService(ref serviceGuid, ref iid);
while (browserInst.QueryStatusWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM) != (SHDocVw.OLECMDF.OLECMDF_SUPPORTED & SHDocVw.OLECMDF.OLECMDF_ENABLED))
{
}
// send the zoom command to the ActiveX object
browserInst.ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER, ref zoomPercent, IntPtr.Zero);
}
private static void ApplyZoom(DependencyObject src)
{
const int k_minZoom = 10;
const int k_maxZoom = 1000;
const float k_zoomInReference = 800.0f;
var browser = src as WpfWebBrowserWrapper;
if (browser != null && browser.IsLoaded)
{
WebBrowser webbr = browser.m_innerBrowser;
int zoomPercent = browser.Zoom;
// Determine auto-zoom
if (browser.Zoom == -1)
{
if (browser.ActualWidth < k_zoomInReference)
{
zoomPercent = (int)(browser.ActualWidth / k_zoomInReference * 100);
}
else
{
zoomPercent = 100;
}
}
// rescue too high or too low values
zoomPercent = Math.Min(zoomPercent, k_maxZoom);
zoomPercent = Math.Max(zoomPercent, k_minZoom);
// grab a handle to the underlying ActiveX object
IServiceProvider serviceProvider = null;
if (webbr.Document != null)
{
serviceProvider = (IServiceProvider)webbr.Document;
}
if (serviceProvider == null)
{
return;
}
Guid serviceGuid = SID_SWebBrowserApp;
Guid iid = typeof(SHDocVw.IWebBrowser2).GUID;
SHDocVw.IWebBrowser2 browserInst = (SHDocVw.IWebBrowser2)serviceProvider.QueryService(ref serviceGuid, ref iid);
try
{
object zoomPercObj = zoomPercent;
// send the zoom command to the ActiveX object
browserInst.ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM,
SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER,
ref zoomPercObj,
IntPtr.Zero);
}
catch (Exception)
{
// ignore this dynamic call if it fails.
}
}
}
/// <summary>
/// コンテンツキャプチャ
/// </summary>
private void GetCaptureImageInternal()
{
if (InvokeRequired)
{
// 別スレッドから呼び出された場合
Invoke(new GetCaptureImageInternalDelegate(GetCaptureImageInternal));
return;
}
Bitmap rt = null;
Size curSize;
try
{
#region コンテンツのボディー部を取得
HtmlDocument htmlDoc = Document;
if (htmlDoc == null)
{
throw new NullReferenceException();
}
HtmlElement element = htmlDoc.Body;
if (element == null)
{
throw new NullReferenceException();
}
IOleObject oleObj = (IOleObject)htmlDoc.DomDocument;
if (oleObj == null)
{
throw new NullReferenceException();
}
#endregion
#region コンテンツの情報を記憶
// スクロール位置を記憶
Point scrOrg = new Point();
scrOrg.X = element.Parent.ScrollLeft;
scrOrg.Y = element.Parent.ScrollTop;
#endregion
#region コンテンツをキャプチャ用に調整
// 一時的に拡大率を変更する
if (zoomNowRate != captureZoomRate)
{
SHDocVw.IWebBrowser2 browser = (SHDocVw.IWebBrowser2)ActiveXInstance;
object izoom = (Int32)captureZoomRate;
object ozoom = (Int32)0;
browser.ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM,
SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
ref izoom, ref ozoom);
}
// コンテンツサイズ計算(スクロールバー分大きくする)
oleObj.GetExtent(DVASPECT.DVASPECT_CONTENT, out curSize);
Rectangle conRect = new Rectangle(0, 0,
(int)(element.ScrollRectangle.Size.Width * captureZoomRate / 100 + 0.5),
(int)(element.ScrollRectangle.Size.Height * captureZoomRate / 100 + 0.5)
);
conRect.Width += SystemInformation.VerticalScrollBarWidth;
conRect.Height += SystemInformation.HorizontalScrollBarHeight;
#endregion
if (captureDrawMode == CaptureDrawModes.OleDraw)
{
rt = new Bitmap(conRect.Width, conRect.Height);
}
else
{
rt = new Bitmap(this.Size.Width, this.Size.Height);
}
Graphics g = Graphics.FromImage(rt);
IntPtr dc = g.GetHdc();
try
{
#region コンテンツ全体をキャプチャ
switch (captureDrawMode)
{
case CaptureDrawModes.OleDraw:
#region OleDrawによるキャプチャ
{
IntPtr pUnk = Marshal.GetIUnknownForObject(ActiveXInstance);
try
{
// コンテンツ描画範囲をコンテンツサイズに設定
Size drawSize = PixelToHIMETRIC(conRect.Size, dc);
oleObj.SetExtent(DVASPECT.DVASPECT_CONTENT, ref drawSize);
// 描画
OleDraw(pUnk, DVASPECT.DVASPECT_CONTENT, dc, ref conRect);
}
catch (Exception es)
{
ThreadExceptionDialog ed = new ThreadExceptionDialog(es);
ed.ShowDialog();
}
finally
{
Marshal.Release(pUnk);
}
}
#endregion
break;
case CaptureDrawModes.PrintWindow:
#region PrintWindowによるキャプチャ
{
// 表示サイズで取得
PrintWindow(Handle, dc, 0);
}
#endregion
break;
}
#endregion
}
catch (Exception es)
{
ThreadExceptionDialog ed = new ThreadExceptionDialog(es);
ed.ShowDialog();
}
finally
{
g.ReleaseHdc(dc);
g.Dispose();
}
#region コンテンツを元に戻す
// 拡大率とコンテンツサイズを戻す
if (zoomNowRate != captureZoomRate)
{
SHDocVw.IWebBrowser2 browser = (SHDocVw.IWebBrowser2)ActiveXInstance;
object izoom = (Int32)zoomNowRate;
object ozoom = (Int32)0;
browser.ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM,
SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT,
ref izoom, ref ozoom);
}
oleObj.SetExtent(DVASPECT.DVASPECT_CONTENT, ref curSize);
// スクロール位置を戻す
SetPosition(scrOrg);
#endregion
}
catch (NullReferenceException)
{
if (rt == null)
{
rt = new Bitmap(1, 1);
}
}
catch (Exception es)
{
ThreadExceptionDialog ed = new ThreadExceptionDialog(es);
ed.ShowDialog();
}
imageOrigin = rt;
}
