Moving Rectangle on Mouse move

Question

Hi WPF Experts I am a java developer who recently moved to WPF development. I am working on a requirement where I want to show a rectangle being moved where ever I move mouse around the canvas drawn on window. I want to show a image in this rectangle also being moved around with moving the mouse. We have used Foxit SDK. We are capturing the signature and storing it in an image file. On mouse touch down event that image is placed at canvas as annotation. Now user doesn't know how exactly signature would be placed on canvas untill he clicks which is creating problem. If anyone can give some leads it would be really helpful. Thanks Sahil

Mukil Vendhan · Answer

bool dragging = false ; float lastMouseX lastMouseY; //register as glutMouseFunc void onMouseButton(int button int state int x int y) { if( button == GLUT_RIGHT_BUTTON) { if( state == GLUT_DOWN) { dragging = true ; y = WinHeight - y;//Win (00) //is Left-Top lastMouseX = x ; lastMouseY = y ; } else dragging = false ; } } //register as glutMotionFunc void onMouseDrag(int x int y) { if(dragging) { y = WinHeight - y;//Win (00) //is Left-Top float dragX = x - lastMouseX; float dragY = y - lastMouseY; lastMouseX = x ; lastMouseY = y ; //do whatever u wanna do with dragX //and dragY } } kindly check this code and further follow this link:http://csharphelper.com/blog/2014/12/let-user-move-resize-rectangle-wpf-c/