mainform.cpp

来自「C++ BUILDER精彩编程实例集锦(源码)3 第五部分 系统编程 第六部」· C++ 代码 · 共 42 行

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

#include <vcl.h>
#pragma hdrstop

#include "Mainform.h"
#include <vcl\Clipbrd.hpp>
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::ClipboardChanged(TMessage& Msg)
{
  MessageBox(this->Handle,"系统剪贴板有变化","信息提示",MB_OK);

}
void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{

  static HWND Handle;
  static bool clip=false;
  if(clip==true)
  {
    ChangeClipboardChain(Form1->Handle,Handle);
    this->BitBtn1->Caption="启动系统剪贴板监视";
  }
  else
  {
    Clipboard()->Clear();
    Handle=SetClipboardViewer(Form1->Handle);
    this->BitBtn1->Caption="关闭系统剪贴板监视";
  }
  clip=!clip;
}