diff --git a/uppsrc/CtrlCore/CtrlCore.h b/uppsrc/CtrlCore/CtrlCore.h
index 1941d720b..07d3c811d 100644
--- a/uppsrc/CtrlCore/CtrlCore.h
+++ b/uppsrc/CtrlCore/CtrlCore.h
@@ -39,6 +39,8 @@ Size GetScreenSize();
 
 typedef ImageDraw SystemImageDraw;
 
+void StdDrawImage(SystemDraw& w, int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color);
+
 void DrawDragRect(SystemDraw& w, const Rect& rect1, const Rect& rect2, const Rect& clip, int n,
                   Color color, uint64 pattern);
 
@@ -466,6 +468,7 @@ private:
 	static  bool      mouseinview;
 	static  bool      mouseinframe;
 	static  bool      globalbackpaint;
+	static  bool      globalbackbuffer;
 	static  bool      painting;
 	static  int       LoopLevel;
 	static  Ctrl     *LoopCtrl;
@@ -1196,6 +1199,7 @@ public:
 
 	static void   GlobalBackPaint(bool b = true);
 	static void   GlobalBackPaintHint();
+	static void   GlobalBackBuffer(bool b = true);
 
 	String      Name() const;
 
diff --git a/uppsrc/CtrlCore/CtrlDraw.cpp b/uppsrc/CtrlCore/CtrlDraw.cpp
index 40ed62869..0dca4640a 100644
--- a/uppsrc/CtrlCore/CtrlDraw.cpp
+++ b/uppsrc/CtrlCore/CtrlDraw.cpp
@@ -6,6 +6,7 @@ NAMESPACE_UPP
 #define LTIMING(x)  // TIMING(x)
 
 bool Ctrl::globalbackpaint;
+bool Ctrl::globalbackbuffer;
 
 void Ctrl::RefreshFrame(const Rect& r) {
 	GuiLock __;
@@ -468,6 +469,11 @@ void Ctrl::UpdateArea0(SystemDraw& draw, const Rect& clip, int backpaint)
 	GuiLock __;
 	LTIMING("UpdateArea");
 	LLOG("========== UPDATE AREA " << UPP::Name(this) << " ==========");
+	if(globalbackbuffer) {
+		CtrlPaint(draw, clip);
+		LLOG("========== END (TARGET IS BACKBUFFER)");
+		return;
+	}
 	if(backpaint == FULLBACKPAINT || globalbackpaint && !hasdhctrl && !dynamic_cast<DHCtrl *>(this)) {
 		ShowRepaintRect(draw, clip, LtRed());
 		BackDraw bw;
@@ -657,4 +663,10 @@ void  Ctrl::GlobalBackPaintHint()
 		GlobalBackPaint();
 }
 
+void Ctrl::GlobalBackBuffer(bool b)
+{
+	GuiLock __;
+	globalbackbuffer = b;
+}
+
 END_UPP_NAMESPACE
diff --git a/uppsrc/CtrlCore/DrawOpWin32.cpp b/uppsrc/CtrlCore/DrawOpWin32.cpp
index 25e0f50fc..abd865532 100644
--- a/uppsrc/CtrlCore/DrawOpWin32.cpp
+++ b/uppsrc/CtrlCore/DrawOpWin32.cpp
@@ -145,6 +145,12 @@ void SystemDraw::DrawLineOp(int x1, int y1, int x2, int y2, int width, Color col
 	::LineTo(handle, x2, y2);
 }
 
+void SystemDraw::DrawImageOp(int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color)
+{
+	GuiLock __;
+	StdDrawImage(*this, x, y, cx, cy, img, src, color);
+}
+
 #ifndef PLATFORM_WINCE
 
 void SystemDraw::DrawPolyPolylineOp(const Point *vertices, int vertex_count,
diff --git a/uppsrc/CtrlCore/DrawOpX11.cpp b/uppsrc/CtrlCore/DrawOpX11.cpp
index 46d165d0a..36cc03bc4 100644
--- a/uppsrc/CtrlCore/DrawOpX11.cpp
+++ b/uppsrc/CtrlCore/DrawOpX11.cpp
@@ -144,6 +144,12 @@ void SystemDraw::DrawLineOp(int x1, int y1, int x2, int y2, int width, Color col
 	          x2 + actual_offset.x, y2 + actual_offset.y);
 }
 
+void SystemDraw::DrawImageOp(int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color)
+{
+	GuiLock __;
+	StdDrawImage(*this, x, y, cx, cy, img, src, color);
+}
+
 void SystemDraw::DrawPolyPolylineOp(const Point *vertices, int vertex_count,
 	                          const int *counts, int count_count,
 	                          int width, Color color, Color doxor)
diff --git a/uppsrc/CtrlCore/ImageWin32.cpp b/uppsrc/CtrlCore/ImageWin32.cpp
index e3d0ffeee..2d681293e 100644
--- a/uppsrc/CtrlCore/ImageWin32.cpp
+++ b/uppsrc/CtrlCore/ImageWin32.cpp
@@ -400,6 +400,15 @@ void ImageDraw::Init()
 	has_alpha = false;
 }
 
+Draw& ImageDraw::Alpha()
+{
+	if(!has_alpha) {
+		alpha.DrawRect(size, GrayColor(0));
+		has_alpha = true;
+	}
+	return alpha;
+}
+
 Image ImageDraw::Get(bool pm) const
 {
 	ImageBuffer b(size);
diff --git a/uppsrc/CtrlCore/ImageX11.cpp b/uppsrc/CtrlCore/ImageX11.cpp
index 00b94ee14..09547a05f 100644
--- a/uppsrc/CtrlCore/ImageX11.cpp
+++ b/uppsrc/CtrlCore/ImageX11.cpp
@@ -388,6 +388,15 @@ ImageDraw::~ImageDraw()
 	XFreeGC(Xdisplay, alpha.gc);
 }
 
+Draw& ImageDraw::Alpha()
+{
+	if(!has_alpha) {
+		alpha.DrawRect(size, GrayColor(0));
+		has_alpha = true;
+	}
+	return alpha;
+}
+
 Image X11Cursor(int c)
 {
 	ImageBuffer b(32, 32);
diff --git a/uppsrc/CtrlCore/SystemDraw.cpp b/uppsrc/CtrlCore/SystemDraw.cpp
index 50b9131f8..1d93626e1 100644
--- a/uppsrc/CtrlCore/SystemDraw.cpp
+++ b/uppsrc/CtrlCore/SystemDraw.cpp
@@ -4,18 +4,17 @@ NAMESPACE_UPP
 
 #define LTIMING(x)
 
-void SystemDraw::DrawImageOp(int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color)
+void StdDrawImage(SystemDraw& w, int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color)
 {
-	GuiLock __;
 	LTIMING("DrawImageOp");
-	bool tonative = !IsNative();
+	bool tonative = !w.IsNative();
 	if(tonative) {
-		BeginNative();
-		Native(x, y);
-		Native(cx, cy);
+		w.BeginNative();
+		w.Native(x, y);
+		w.Native(cx, cy);
 	}
 	Size sz = Size(cx, cy);
-	if((cx > 2000 || cy > 1500) && IsNull(color) && IsPrinter()) {
+	if((cx > 2000 || cy > 1500) && IsNull(color) && w.IsPrinter()) {
 		int yy = 0;
 		ImageRaster ir(img);
 		RescaleImage rm;
@@ -25,29 +24,19 @@ void SystemDraw::DrawImageOp(int x, int y, int cx, int cy, const Image& img, con
 			ImageBuffer ib(cx, ccy);
 			for(int q = 0; q < ccy; q++)
 				rm.Get(ib[q]);
-			DrawImageBandRLE(*this, x, y + yy, ib, 16);
+			DrawImageBandRLE(w, x, y + yy, ib, 16);
 			yy += ccy;
 		}
 	}
 	else
 	if(src.GetSize() == sz)
-		img.PaintImage(*this, x, y, src, color);
+		img.PaintImage(w, x, y, src, color);
 	else {
 		Image h = Rescale(img, Size(cx, cy), src);
-		h.PaintImage(*this, x, y, h.GetSize(), color);
+		h.PaintImage(w, x, y, h.GetSize(), color);
 	}
 	if(tonative)
-		EndNative();
-}
-
-
-Draw& ImageDraw::Alpha()
-{
-	if(!has_alpha) {
-		alpha.DrawRect(size, GrayColor(0));
-		has_alpha = true;
-	}
-	return alpha;
+		w.EndNative();
 }
 
 ImageBuffer::ImageBuffer(ImageDraw& iw)
diff --git a/uppsrc/Draw/Draw.h b/uppsrc/Draw/Draw.h
index 1382414e6..b6d8d1e6c 100644
--- a/uppsrc/Draw/Draw.h
+++ b/uppsrc/Draw/Draw.h
@@ -584,7 +584,7 @@ public:
 		          Color ink = DefaultInk, const int *dx = NULL);
 
 	static void SinCos(int angle, double& sina, double& cosa);
-	
+
 	// deprecated:
 	static void SetStdFont(Font font)                   { UPP::SetStdFont(font); }
 	static Font GetStdFont()                            { return UPP::GetStdFont(); }
diff --git a/uppsrc/Draw/Image.h b/uppsrc/Draw/Image.h
index 9b2178ad4..5439682ef 100644
--- a/uppsrc/Draw/Image.h
+++ b/uppsrc/Draw/Image.h
@@ -101,6 +101,10 @@ public:
 	operator RGBA*()                    { return pixels; }
 	const RGBA *operator~() const       { return pixels; }
 	operator const RGBA*() const        { return pixels; }
+	RGBA *Begin()                       { return pixels; }
+	const RGBA *Begin() const           { return pixels; }
+	RGBA *End()                         { return pixels + GetLength(); }
+	const RGBA *End() const             { return pixels + GetLength(); }
 
 	void  Create(int cx, int cy);
 	void  Create(Size sz)               { Create(sz.cx, sz.cy); }
@@ -187,10 +191,6 @@ private:
 	friend class ImageBuffer;
 	friend struct Data;
 
-	friend class SystemDraw;
-
-	void PaintImage(SystemDraw& w, int x, int y, const Rect& src, Color c) const;
-
 	friend void SetPaintOnly___(Image& m);
 	friend void DrawImageBandRLE(Draw& w, int x, int y, const Image& m, int minp);
 	friend void InstallSystemImage();
@@ -254,6 +254,7 @@ public:
 	Image(ImageBuffer& b);
 	~Image();
 
+	void PaintImage(SystemDraw& w, int x, int y, const Rect& src, Color c) const;
 
 	static Image Arrow();
 	static Image Wait();
diff --git a/uppsrc/Painter/BufferPainter.h b/uppsrc/Painter/BufferPainter.h
index 6a2039fba..399d79f33 100644
--- a/uppsrc/Painter/BufferPainter.h
+++ b/uppsrc/Painter/BufferPainter.h
@@ -357,5 +357,8 @@ private:
 	enum { FILL = -1, CLIP = -2, ONPATH = -3 };
 
 public:
+	ImageBuffer&       GetBuffer()                             { return ib; }
+	const ImageBuffer& GetBuffer() const                       { return ib; }
+
 	BufferPainter(ImageBuffer& ib, int mode = MODE_ANTIALIASED);
 };