search for: drawingarea

Dear all, I use gtkImageFromFile to display an image. Then I want to do some gsignal to handle mouse event. I click the mouse and move a another position and release. I can get the position of the firs click and the release position, then I would to draw a rectangle to display the region I have selected. I need some hints on what functions should I look for. I tried to google but don't know

...ns a UIL application that demonstrates animation of pixmaps drag_and_drop Contains another C application that demonstrates drag and drop. draw Contains a C application that demonstrates how to draw into a DrawingArea earth Contains a C application that demonstrates the use of the shape extension within Motif. Exm Contains two C applications and one UIL application to exercise the Exm demonstration widget set. filemanager...