ExplorerAccept (Function)

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"Drag and Drop"
Windows Vista (and later)

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ExplorerAccept (Function)

In french: ExplorerAccepte

Enables or disables the ability to perform "Drag and Drop" from the Windows explorer to a WINDEV window or control.

Example

See additional examples

// Initialize dialog for the entire window
ExplorerAccept(True, WIN_Win1)

// Initialize dialog so that a single control is the target of the Drag & Drop
// The project code must have the following declaration: 
// EXTERN "WinConst.wl"
ExplorerAccept(True, IMG_NoName1)
// WM_DROPFILES event to get the number of dropped elements
// This information is returned by ExplorerRetrieve
Event("DragAndDrop", "IMG_NoName1", WM_DROPFILES)

// Drag and Drop with the Windows explorer: enable
ExplorerAccept(True, STC_ZONE_DROP, Call_backExplorerAccept)

	INTERNAL PROCEDURE Call_backExplorerAccept(NumberOfFiles is int, 
					ListOfFiles is string)
		i is int

		FOR i = 1 TO NumberOfFiles
			FileName is string
			FileName = ExtractString(ListOfFiles, i, CR)
			TableAddLine(TABLE_DND_WINDOWS, FileName)
		END
	END

Syntax

ExplorerAccept([<Drag and Drop> [, <Control or Window> [, <WLanguage procedure>]]])

<Drag and Drop>: Optional boolean

True (default) to allow Drag and Drop operations from the explorer,
False otherwise (Drag and Drop not allowed).

<Control or Window>: Control name or window name

Name of the control or window used for "Drag and Drop".
If this parameter is not specified, the "Drag and Drop" will be performed with the current window (by default).

<WLanguage procedure>: Procedure name

Name of the WLanguage procedure ("callback") called during a drag-and-drop operation. This procedure gets the number and the list of files handled. For more details on this procedure, see Parameters of the procedure used by ExplorerAccept.

Remarks

"Drag and Drop"

If the <WLanguage procedure> parameter is not used: Once ExplorerAccept has been executed, the explorer sends the WM_DROPFILES event to the specified window or control. The information coming from the explorer can be retrieved by ExplorerRetrieve.
Note: With MDI child windows, you need to specify the name of the window used for the drag-and-drop operation.

Windows Vista (and later)

In Windows Vista (and later) with the UAC mechanism enabled, "Drag & Drop" is not allowed by the system in the following cases:

If the executable is started from Windows with "Run as Administrator",
If the executable is created with a manifest giving it the administrator privileges.

Business / UI classification: UI Code

Component: wd300std.dll