unit1.cpp

<<C++Builder 6实用编程100例>>随书光盘

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------


void __fastcall TForm1::ListBoxMouseDown(TObject *Sender,
      TMouseButton Button, TShiftState Shift, int X, int Y)
{
        if(Button!=mbLeft)
                return;
        TListBox*listbox=(TListBox*)Sender;
        if(listbox->ItemAtPos(Point(X,Y),true)>=0)
                listbox->BeginDrag(false,0);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::ListBoxDragOver(TObject *Sender, TObject *Source,
      int X, int Y, TDragState State, bool &Accept)
{
        if (Source==ListBox1||Source==ListBox2)
                Accept=true;
        else
                Accept=false;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::ListBoxDragDrop(TObject *Sender, TObject *Source,
      int X, int Y)
{
        if (Sender==Source)
            return;
        TListBox *sender=(TListBox*)Sender ;
        TListBox *source=(TListBox*)Source ;
        sender->Items->Add(source->Items->Strings[source->ItemIndex]);
        source->Items->Delete(source->ItemIndex);
}
//---------------------------------------------------------------------------