Gambas/libraries/gb.qt

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Revision as of 20:37, 26 April 2015 by Woozle (talk | contribs) (moved form-state events to Form page)
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About

gb.qt is a Gambas library which provides functions for displaying and handling forms; it uses the Qt graphical library.

Related libraries:

  • gb.qt4 is (presumably) specific to version 4 of Qt
  • gb.gtk provides much of the same functionality using the GTK+ graphical library, but it appears to be less fully implemented
  • gb.gui provides functionality common to GTK+ and Qt, and loads whichever system is currently in use

Events

form state

see Gambas/controls/Form

drag-drop

Some rules which seem to apply:

  • The Mouse location (Mouse.X and Mouse.Y) is not updated while the mouse is dragging anything; you get the mouse's location while dragging from the Drag object.
  • Normal mouse events are also not triggered while the mouse is dragging anything
  • In order for any element (form or control) to receive mouse events while the mouse is dragging anything, the element's Drop property must be set to TRUE
  • To get continuous updates on the mouse's movements, implement (control).DragMove and (form).DragMove. The control will only receive events while the mouse is inside it; the form will only receive events while the mouse is not inside another drop-enabled control. Use the form events to detect when the mouse has left the control area.

Links

Retrieved from "https://htyp.org/mw/index.php?title=Gambas/libraries/gb.qt&oldid=20902"