Drop files event

From Free Pascal wiki
Revision as of 10:58, 24 June 2007 by Tombo (talk | contribs)
Jump to navigationJump to search

The files drop event will be invoked when the user drops one or multiple dragged files on one of application's forms.

First this event should be fired for target form (or main form if drop target is unknown), then for the application.

Possible implementation for LCL

TFilesDropEvent = procedure (Sender: TObject; const FileNames: Array of String) of Object;

Add OnFilesDrop: TFilesDropEvent to TCustomForm, TApplication and TApplicationProperties.

Possible implementation per widgetsets

The widgetsets should call method IntfFilesDrop of target form (or main form if drop target is unknown) and the application.

Win32/64

  • set DragAcceptFiles for every form
  • respond to WM_DROPFILES message

GTK1/2

Qt

Carbon

  • respond to kAECoreSuite/kAEOpenDocuments event to open application associated files
  • respond to kAECoreSuite/kAEOpenContents event, where content format is typeFSRef

Related bug reports

TODO

  1. implement for widgetsets
  2. documentation