public static extern bool GetTextExtentPoint32(
IntPtr hdc,
[MarshalAs(UnmanagedType.LPTStr)] string lpString,
int cbString,
out SIZE lpSize
);
public static extern bool UpdateLayeredWindow(
IntPtr hwnd,
IntPtr hdcDst,
ref POINT pptDst,
ref SIZE psize,
IntPtr hdcSrc,
ref POINT pptSrc,
uint crKey,
ref BLENDFUNCTION pblend,
uint dwFlags);
/// <summary>
/// Requests that the container scroll to get the object in view (will never
/// be called for a Document Object / MSHTML since by definition document
/// object's take up the entire container window)
/// </summary>
/// <param name="scrollExtant"></param>
void IOleInPlaceSite.Scroll(SIZE scrollExtant)
{
// log access to method
LOG_UN("IOleInPlaceSite", "Scroll");
// not-implemented
ComHelper.Return(HRESULT.E_NOTIMPL);
}
/// <summary>
/// IHTMLPainter.Resize -- Called by MSHTML when an element containing a rendering behavior is resized
/// </summary>
/// <param name="size">SIZE structure that specifies the new width and height for the element,
/// including any expanded region</param>
public virtual void OnResize(SIZE size)
{
}
private void UpdateBitmap()
{
using (Bitmap bitmap = CreateBitmap())
{
IntPtr screenDC = User32.GetDC(IntPtr.Zero);
try
{
IntPtr memDC = Gdi32.CreateCompatibleDC(screenDC);
try
{
IntPtr hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
try
{
IntPtr hOrigBitmap = Gdi32.SelectObject(memDC, hBitmap);
try
{
POINT dst = new POINT();
dst.x = Left;
dst.y = Top;
SIZE size = new SIZE();
size.cx = bitmap.Width;
size.cy = bitmap.Height;
POINT src = new POINT();
src.x = 0;
src.y = 0;
User32.BLENDFUNCTION blendFunction = new User32.BLENDFUNCTION();
blendFunction.BlendOp = 0; // AC_SRC_OVER
blendFunction.BlendFlags = 0;
blendFunction.SourceConstantAlpha = 255;
blendFunction.AlphaFormat = 1; // AC_SRC_ALPHA
User32.UpdateLayeredWindow(Handle, screenDC, ref dst, ref size, memDC, ref src, 0, ref blendFunction, 2);
}
finally
{
Gdi32.SelectObject(memDC, hOrigBitmap);
}
}
finally
{
Gdi32.DeleteObject(hBitmap);
}
}
finally
{
Gdi32.DeleteDC(memDC);
}
}
finally
{
User32.ReleaseDC(IntPtr.Zero, screenDC);
}
}
}
public override void OnResize(SIZE size)
{
_elementSize = new Size(size.cx, size.cy) ;
_widgetLocation = new Point(_elementSize.Width - _widgetEnabled.Width, WIDGET_VERTICAL_OFFSET) ;
_widgetArea = new Rectangle( _widgetLocation, _widgetEnabled.Size );
}
public override void OnResize(SIZE size)
{
if (Attached)
SynchronizeElementRectangle();
}
public override void OnResize(SIZE size)
{
base.OnResize(size);
if (Attached && _resizerControl.Mode != SizerMode.Resizing)
SynchronizeResizerWithElement();
}
