DtDnd(5)

Dt/Dnd.h(5)		  FILE FORMATS		      Dt/Dnd.h(5)

NAME
     Dt/Dnd.h -	Drag and drop definitions

SYNOPSIS
     #include <Dt/Dnd.h>

DESCRIPTION
     The <Dt/Dnd.h>  header  defines  the  following  enumeration
     types:

	  DtCR_DND_CONVERT_DATA
	  DtCR_DND_CONVERT_DELETE
	  DtCR_DND_DRAG_FINISH
	  DtCR_DND_TRANSFER_DATA
	  DtCR_DND_DROP_ANIMATE

     The header	defines	the  following	enumeration  data  types,
     with at least the following members:

	DtDndStatus
	      DtDND_SUCCESS, DtDND_FAILURE

	DtDndProtocol

		   DtDND_TEXT_TRANSFER	   = (1L << 0)
		   DtDND_FILENAME_TRANSFER = (1L << 1)
		   DtDND_BUFFER_TRANSFER   = (1L << 2)

     The header	declares the following structures:

	  typedef struct _DtDndBuffer {
	      void *bp;
	      int size;
	      string name;
	  } DtDndBuffer;

	  typedef struct _DtDndContext {
	      DtDndProtocol protocol;
	      int numItems;
	      union {
		  XmString *strings;
		  String *files;
		  DtDndBuffer *buffers;
	      }	data;
	  } DtDndContext;

	  typedef struct _DtDndConvertCallbackStruct {
	      int reason;
	      XEvent *event;
	      DtDndContext *dragData;
	      DtDndStatus status;
	  } DtDndConvertCallbackStruct,	*DtDndConvertCallback;

Unix System LaboratoLast change: 1 August 1995			1

Dt/Dnd.h(5)		  FILE FORMATS		      Dt/Dnd.h(5)

	  typedef struct _DtDndDragFinishCallbackStruct	{
	      int reason;
	      XEvent *event;
	      DtDndContext *dragData;
	      Widget sourceIcon;
	  } DtDndDragFinishCallbackStruct, *DtDndDragFinishCallback;

	  typedef struct _DtDndTransferCallbackStruct {
	      int reason;
	      XEvent *event;
	      Position x, y;
	      unsigned char operation;
	      DtDndContext *dropData;
	      Boolean completeMove;
	      DtDndStatus status;
	  } DtDndTransferCallbackStruct, *DtDndTransferCallback;

	  typedef struct _DtDndDropAnimateCallbackStruct {
	      int reason;
	      XEvent *event;
	      Position x, y;
	      unsigned char operation;
	      DtDndContext *dropData;
	  } DtDndDropAnimateCallbackStruct, *DtDndDropAnimateCallback;

     The header	declares the following as functions:

     Widget DtDndCreateSourceIcon(Widget parent,
				  Pixmap pixmap,
				  Pixmap mask);

     Widget DtDndDragStart(Widget dragSource,
			   XEvent *event,
			   DtDndProtocol protocol,
			   Cardinal numItems,
			   unsigned char operations,
			   XtCallbackList convertCallback,
			   XtCallbackList dragFinishCallback,
			   ArgList argList,
			   Cardinal argCount);

     Widget DtDndVaDragStart(Widget dragSource,
			     XEvent *event,
			     DtDndProtocol protocol,
			     Cardinal numItems,
			     unsigned char operations,
			     XtCallbackList convertCallback,
			     XtCallbackList dragFinishCallback,
			     ...);

     void DtDndDropRegister(Widget dropSite,
			    DtDndProtocol protocols,

Unix System LaboratoLast change: 1 August 1995			2

Dt/Dnd.h(5)		  FILE FORMATS		      Dt/Dnd.h(5)

			    unsigned char operations,
			    XtCallbackList transferCallback,
			    ArgList argList,
			    Cardinal argCount);

     void DtDndVaDropRegister(Widget dropSite,
			      DtDndProtocol protocols,
			      unsigned char operations,
			      XtCallbackList transferCallback,
			      ...);

     void DtDndDropUnregister(Widget dropSite);

Unix System LaboratoLast change: 1 August 1995			3