Difference between revisions of "Gambas/libraries/gb.qt"
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| − | + | ==About== | |
| − | + | {{l/same|gb.qt}} is a [[Gambas]] [[../|library]] which provides functions for displaying and handling [[form (GUI)|form]]s; it uses the [[Qt]] graphical library. | |
| − | + | ||
| − | + | Related libraries: | |
| − | + | * {{l/same|gb.qt4}} is (presumably) specific to version 4 of Qt | |
| − | + | * {{l/same|gb.gtk}} provides much of the same functionality using the [[GTK+]] graphical library, but it appears to be less fully implemented | |
| − | + | * {{l/same|gb.gui}} provides functionality common to GTK+ and Qt, and loads whichever system is currently in use | |
| − | + | ==Events== | |
| − | + | ===form state=== | |
| − | http:// | + | ''see [[Gambas/controls/Form]]'' |
| − | + | ===drag-drop=== | |
| + | Some rules which seem to apply: | ||
| + | * The {{l/sub|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 {{l/sub|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== | ||
| + | * [http://gambasdoc.org/help/comp/gb.qt official reference] | ||
Latest revision as of 20:37, 26 April 2015
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
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.