[C++] Check if mouse on the GUI
Posted: 13 Jan 2017, 10:26
How to implement events OnMouseEnter and OnMouseLeave for all elements at once?
How can I check if mouse on the GUI or not?
How can I check if mouse on the GUI or not?
If you want to be notified when an element on a subtree of elements is hovered with the mouse you just need to register to MouseEnter in the parent of that tree, because routed events traverse all elements in the tree.
To check if mouse is over any element of the GUI you can use VisualTreeHelper like this:
Code: Select all
Visual* root = VisualTreeHelper::GetRoot(anyElement);
HitTestResult hit = VisualTreeHelper::HitTest(root, mousePos);
if (hit.visualHit != 0)
{
// Mouse is over a GUI element
}
else
{
// No GUI element is under the mouse
}