diff --git a/src/AbstractOperator.cpp b/src/AbstractOperator.cpp
index 041301d..25f173a 100644
--- a/src/AbstractOperator.cpp
+++ b/src/AbstractOperator.cpp
@@ -4,12 +4,15 @@
  * Применить оператор поиска граней.
  */
 IplImage* AbstractOperator::applyOperator(IplImage* sourceImage) {
+	// Применение горизонтального фильтра выделения граней
 	IplImage* horizontalEdges = cvCloneImage(sourceImage);
 	cvFilter2D(sourceImage, horizontalEdges, horizontalMatrix, cvPoint(-1,-1));
 
+	// Применение вертикального фильтра выделения граней
 	IplImage* verticalEdges = cvCloneImage(sourceImage);
 	cvFilter2D(sourceImage, verticalEdges, verticalMatrix, cvPoint(-1,-1));
 
+	// Объединение двух изображений в одно (G = sqrt(Gx^2 + Gy^2))
 	horizontalEdges = applyGradient(horizontalEdges, verticalEdges);
 	cvReleaseImage(&sourceImage);
 	cvReleaseImage(&verticalEdges);
@@ -18,7 +21,7 @@ IplImage* AbstractOperator::applyOperator(IplImage* sourceImage) {
 
 /**
  * Создать матрицы свертки.
- **/
+ */
 void AbstractOperator::createMatrix() {
 	createHorizontalKernelMatrix();
 	createVerticalKernelMatrix();
diff --git a/src/DonNUEdgeDetector.rc b/src/DonNUEdgeDetector.rc
index 4df55f5..bb74064 100644
--- a/src/DonNUEdgeDetector.rc
+++ b/src/DonNUEdgeDetector.rc
@@ -69,6 +69,7 @@ BEGIN
         MENUITEM "&Оригинал\tCtrl+O",           ID_EF_ORIGINAL
         MENUITEM "О&ттенки серого\tCtrl+G",     ID_EF_GRAYSCALE
         MENUITEM "&Негатив\tCtrl+I",            ID_EF_INVERSE
+        MENUITEM "Обво&дка граней\tCtrl+D",     ID_EF_STROKE
     END
     POPUP "&Справка"
     BEGIN
@@ -84,15 +85,16 @@ END
 
 IDR_MAINACCELERATOR ACCELERATORS
 BEGIN
-    "1",            ID_OP_ROBERTS,          VIRTKEY, NOINVERT
-    "2",            ID_OP_PREWITT,          VIRTKEY, NOINVERT
-    "3",            ID_OP_SOBEL,            VIRTKEY, NOINVERT
-    "4",            ID_OP_SCHARR,           VIRTKEY, NOINVERT
     "G",            ID_EF_GRAYSCALE,        VIRTKEY, CONTROL, NOINVERT
     "I",            ID_EF_INVERSE,          VIRTKEY, CONTROL, NOINVERT
     "O",            ID_EF_ORIGINAL,         VIRTKEY, CONTROL, NOINVERT
-    "P",            ID_PAUSE,               VIRTKEY, CONTROL, NOINVERT
+    "D",            ID_EF_STROKE,           VIRTKEY, CONTROL, NOINVERT
     VK_F4,          ID_EXIT,                VIRTKEY, ALT, NOINVERT
+    "2",            ID_OP_PREWITT,          VIRTKEY, NOINVERT
+    "1",            ID_OP_ROBERTS,          VIRTKEY, NOINVERT
+    "4",            ID_OP_SCHARR,           VIRTKEY, NOINVERT
+    "3",            ID_OP_SOBEL,            VIRTKEY, NOINVERT
+    "P",            ID_PAUSE,               VIRTKEY, CONTROL, NOINVERT
     VK_F9,          ID_SNAPSHOT,            VIRTKEY, NOINVERT
 END
 
diff --git a/src/EdgeDetector.cpp b/src/EdgeDetector.cpp
index ef20300..9680e17 100644
--- a/src/EdgeDetector.cpp
+++ b/src/EdgeDetector.cpp
@@ -43,8 +43,14 @@ void EdgeDetector::update() {
 	} else resultFrame = cvCloneImage(cameraFrame);
 
 	if (!isOriginalEffect) {
-		resultFrame = edgeDetectOperator->applyOperator(resultFrame);
+		if (isStrokeEffect) {
+			IplImage* tempFrame = cvCloneImage(resultFrame);
+			tempFrame = edgeDetectOperator->applyOperator(tempFrame);
+			cvSub(resultFrame, tempFrame, resultFrame);
+			cvReleaseImage(&tempFrame);
+		} else resultFrame = edgeDetectOperator->applyOperator(resultFrame);
 	}
+
 	if (isInverseEffect) {
 		IplImage* tempFrame = cvCloneImage(resultFrame);
 		cvNot(tempFrame, resultFrame);
@@ -79,6 +85,9 @@ void EdgeDetector::setEffects(UINT effect, bool enabled) {
 		case ID_EF_INVERSE:
 			isInverseEffect = enabled;
 			break;
+		case ID_EF_STROKE:
+			isStrokeEffect = enabled;
+			break;
 	}
 }
 
diff --git a/src/EdgeDetector.h b/src/EdgeDetector.h
index 807b402..aadabb5 100644
--- a/src/EdgeDetector.h
+++ b/src/EdgeDetector.h
@@ -33,6 +33,7 @@ private:
 	const char* getWindowName();
 
 	bool isOriginalEffect, isGrayScaleEffect, isInverseEffect;
+	bool isStrokeEffect;
 	static int captureIndex;
 	AbstractOperator* edgeDetectOperator;
 	CvCapture* camera;
diff --git a/src/Main.cpp b/src/Main.cpp
index 8949b33..e6f893c 100644
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -80,11 +80,12 @@ LRESULT CALLBACK mainWindowProcedure(HWND hWnd, UINT message, UINT wParam, LONG
 	switch(message)	{
 
 	case WM_CREATE:
+		SetClassLong(hWnd, GCL_HICON, (LONG) LoadIcon( GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_ICON1) ));
 		runningThread = true;
 		setPause(hWnd, false);
 		setOperatorType(hWnd, ID_OP_ROBERTS);
 		setEffectTypes(hWnd);
-		_beginthread(edgeDetectingThread, 0, NULL) ;
+		_beginthread(edgeDetectingThread, 0, NULL);
 		break;
 		
 	case WM_COMMAND:
@@ -114,6 +115,8 @@ BOOL CALLBACK AboutDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lPa
 			ShellExecuteA(GetParent(hDlg), "open", "https://github.com/aNNiMON/DonNUEdgeDetector", NULL, NULL, SW_MAXIMIZE);
 			return TRUE;
 		case IDC_OK:
+		case IDOK:
+		case IDCANCEL:
 			EndDialog(hDlg, 0);
 			return TRUE;
 		}
@@ -131,7 +134,10 @@ void menuCommandSelected(HWND hWnd, UINT wParam) {
 	switch(command) {
 
 	case ID_SNAPSHOT:
+		// Для создания скриншота необходимо приостановить обработку фреймов 
+		setPause(hWnd, false);
 		detector.snapshot();
+		setPause(hWnd, pause);
 		break;
 
 	case ID_PAUSE:
diff --git a/src/resource.h b/src/resource.h
index f7e2adc..6b0cf49 100644
--- a/src/resource.h
+++ b/src/resource.h
@@ -12,27 +12,25 @@
 #define ID_EXIT                         40002
 #define ID_ABOUT                        40003
 #define ID_PAUSE                        40004
-
 #define OPERATORS_START                 40010
 #define ID_OP_ROBERTS                   40010
 #define ID_OP_PREWITT                   40011
 #define ID_OP_SOBEL                     40012
 #define ID_OP_SCHARR                    40013
 #define OPERATORS_END                   40013
-
 #define EFFECTS_START                   40018
 #define ID_EF_ORIGINAL                  40018
 #define ID_EF_GRAYSCALE                 40019
 #define ID_EF_INVERSE                   40020
-#define EFFECTS_END                     40020
-
+#define ID_EF_STROKE                    40021
+#define EFFECTS_END                     40021
 
 // Next default values for new objects
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        106
-#define _APS_NEXT_COMMAND_VALUE         40039
+#define _APS_NEXT_COMMAND_VALUE         40043
 #define _APS_NEXT_CONTROL_VALUE         1003
 #define _APS_NEXT_SYMED_VALUE           101
 #endif