Drag And Drop


Drag and Drop is the base of any design operation in VisualMust : you will use it extensively. The first operation you will have to make is to drag a container from the components palette onto the currently designed frame. In this container you will drop other components to build your interface. Note that the above container will become, de facto, the parent of the components you drop on it.

During a DragOver operation, the target appears as a dotted box that surrounds the target component.

Clicking a component of the desktop with the left mouse button will cause this component to be displayed with selected-state emphasis. Moreover, properties and events associated to the object will be displayed. Every window that handles components will be updated.

By clicking the right mouse button, you will get a popup menu associated to the component.

By pressing the border of a component with the left mouse button, you may resize this component.

By pressing a component of the desktop with the left mouse button, you may move this component in the parent area.

By using the right mouse button, you may copy or move components of the desktop to another parent or to the desktop itself. The Copy or Move operation should be done by using the Ctrl and Shift keys.

You may also do Drag and Drop operations to the control panels. For further information, see the Control Panel paragraph.