I want to perform some actions when I click on image in Openframeworks(C++). How to do this?

Question

I want to perform some actions when I click on image in Openframeworks(C++). How to do this?

I am using ofImage. Help me to resolve this.

Answer 1

When you render the image in draw() you might use a position (x,y) and size (width,height) to display on screen.

You can use the same position and dimensions values in the mouseReleased() event to check if the mouse coordinates (x,y) are within the rendered image's bounding box.

Here's a a bit of code to illustrate this, assuming you are already have the rendered image's x,y,width,height variables declared and updated:

void ofApp::mouseReleased(int x, int y, int button){
   if((x >= imageX && x <= imageX + imageWidth) &&
      (y >= imageY && y <= imageY + imageHeight)){
      std::cout << "image clicked" << std::endl;
   }

}