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/Win/Drag and Drop/File Drag
Required plugins for this example: MBS Main Plugin, MBS Win Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Win/Drag and Drop/File Drag
This example is the version from Sun, 17th Mar 2012.
Project "File Drag.rbp"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&Ablage"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Bearbeiten"
MenuItem EditUndo = "&Rückgängig"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "&Ausschneiden"
MenuItem EditCopy = "&Kopieren"
MenuItem EditPaste = "&Einfügen"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "&Alles auswählen"
End MenuBar
Class FileDragWindow Inherits Window
Control StaticText1 Inherits Label
ControlInstance StaticText1 Inherits Label
End Control
EventHandler Function MouseDown(X As Integer, Y As Integer) As Boolean DragStarted = false Return true End EventHandler
EventHandler Sub MouseDrag(X As Integer, Y As Integer) if DragStarted then Return DragStarted = true // avoid a new drag if the user pressed Escape key and is still dragging dropsource = new FileDragSource dim file as FolderItem = createtestfile dim files(-1) as FolderItem files.Append file dim data as new WinDataObjectMBS(files) dim effect as integer = 0 dim result as integer = dropsource.DoDragDrop(data, dropsource.DROPEFFECT_COPY, effect) End EventHandler
Function CreateTestFile() As FolderItem dim logo as Picture = logoMBS(100) dim file as FolderItem = SpecialFolder.Temporary.Child("test.jpg") file.SaveAsJPEG logo Return file End Function
Property DragStarted As Boolean
Property dropsource As FileDragSource
End Class
Class FileDragSource Inherits WindowsDragSourceMBS
EventHandler Function GiveFeedback(Effect as integer) As integer Return DRAGDROP_S_USEDEFAULTCURSORS End EventHandler
EventHandler Function QueryContinueDrag(EscapePressed as boolean, KeyState as integer) As integer if EscapePressed then Return DRAGDROP_S_CANCEL end if if Bitwise.BitAnd(KeyState, MK_LBUTTON)=0 then return DRAGDROP_S_DROP end if Return S_OK End EventHandler
End Class
End Project

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The items on this page are in the following plugins: MBS Win Plugin.

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