mainform.cpp

C++ BUILDER精彩编程实例集锦(源码)3 第五部分 系统编程 第六部分 数据库应用

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

#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::BitBtn1Click(TObject *Sender)
{
  while(this->ListBox1->Items->Count>0)
    this->ListBox1->Items->Delete(0);
  DEVMODE *lpDevMode;
  lpDevMode=new DEVMODE;
  int  i=0,nIndex;
  BOOL Result=EnumDisplaySettings(NULL,i,lpDevMode);
  AnsiString StrDisplayMode="系统支持的显示模式包括：\n";;
  while(Result)
  {
    AnsiString Str;
    Str+=IntToStr(lpDevMode->dmPelsWidth);
    Str+="x";
    Str+=IntToStr(lpDevMode->dmPelsHeight);
    Str+="x";
    Str+=IntToStr(lpDevMode->dmBitsPerPel);
    StrDisplayMode+=Str;
    this->ListBox1->Items->Add(Str);
    lpDevMode=new DEVMODE;
    Result=EnumDisplaySettings(NULL,++i,lpDevMode);
    delete lpDevMode;
  }
  delete lpDevMode;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn2Click(TObject *Sender)
{
   this->Close();        
}
//---------------------------------------------------------------------------