mainform.cpp

来自「C++ BUILDER精彩编程实例集锦(源码)2 第三部分 文件操作 第四部」· C++ 代码 · 共 50 行

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

#include <vcl.h>
#pragma hdrstop

#include "Mainform.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::BitBtn3Click(TObject *Sender)
{
  this->Close();        
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
    if(this->OpenPictureDialog1->Execute())
    {
       AnsiString StrFileName=this->OpenPictureDialog1->FileName;
       this->Image1->Picture->LoadFromFile(StrFileName);
    }
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn2Click(TObject *Sender)
{  //底片化图像
  BYTE *ptr;
  for(int y=0;y<this->Image1->Picture->Bitmap->Height;y++)
  {
    ptr=(BYTE*)this->Image1->Picture->Bitmap->ScanLine[y];
    for(int x=0;x<this->Image1->Picture->Bitmap->Width*3;x+=3)
    {  //取RGB的反向值
       ptr[x]=BYTE(255-ptr[x]);
       ptr[x+1]=BYTE(255-ptr[x+1]);
       ptr[x+2]=BYTE(255-ptr[x+2]);
    }
  }
  this->Image1->Refresh();
}
//---------------------------------------------------------------------------