unitmain.cpp

用C++Builder开发Windows下的屏保

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

#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
#include "Unitmain.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
#pragma resource "bitmap.res"
TFormControl *FormControl;
//---------------------------------------------------------------------------
__fastcall TFormControl::TFormControl(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TFormControl::Timer1Timer(TObject *Sender)
{static int i=0;
if(i>2)i=0;
if(i==1)
Image1->Picture=Image2->Picture;
else
Image1->Picture=Image3->Picture;
i++;
}
//---------------------------------------------------------------------------

void __fastcall TFormControl::FormShow(TObject *Sender)
{
Timer1->Enabled=true;
}
//---------------------------------------------------------------------------

void __fastcall TFormControl::FormCreate(TObject *Sender)
{
 Image1->Picture=Image3->Picture;
    TRegistry *Registry = new TRegistry;
  try
  {
    Registry->RootKey =HKEY_CURRENT_USER;
    if(Registry->KeyExists("\\Software\\CODEHUNTER")==true){
    Registry->OpenKey("\\Software\\CODEHUNTER", true);
    picdir=Registry->ReadString("PicDir");
    frequence=Registry->ReadInteger("frequence");
    Registry->CloseKey();
    }
    else
    {
    if(picdir=="")picdir="no";
    if(frequence<0||frequence>6)
     frequence=1;
    Registry->OpenKey("\\Software\\CODEHUNTER",true);
    Registry->WriteString("PicDir",picdir);
    Registry->WriteInteger("frequence",frequence);
    }
    if(picdir=="")picdir="no";
    if(frequence<0||frequence>6)
     frequence=1;
    TrackBar1->Position=frequence;
    StaticText1->Caption=picdir;
  }
  __finally
  {
    delete Registry;
  }
}
//---------------------------------------------------------------------------


void __fastcall TFormControl::Button2Click(TObject *Sender)
{
picdir="";
 if(SelectDirectory("Select Picture Dir","",picdir))
   StaticText1->Caption=picdir;
}
//---------------------------------------------------------------------------

void __fastcall TFormControl::Button1Click(TObject *Sender)
{
if(picdir=="") picdir="no";
this->frequence=TrackBar1->Position;
TRegistry *Reg = new TRegistry;
  try
  {
    Reg->RootKey = HKEY_CURRENT_USER;
    if (Reg->OpenKey("\\Software\\CODEHUNTER", false))
    {
      Reg->WriteString("PicDir",picdir);
      Reg->WriteInteger("frequence",frequence);
      Reg->CloseKey();
    }
  }
  __finally
  {
    delete Reg;
  }
this->Close();
}
//---------------------------------------------------------------------------


void __fastcall TFormControl::Button3Click(TObject *Sender)
{
Form1->Show();
}
//---------------------------------------------------------------------------