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)
{ //使用缺省浏览器打开指定网页
  if(this->Edit1->Text.Length()<1)
    return;
  HKEY hKeyRoot,hKeySub;
  char ValueName[MAX_PATH];
  unsigned char DataValue[MAX_PATH];
  unsigned long cbValueName=MAX_PATH;
  unsigned long cbDataValue=MAX_PATH;
  char IE[MAX_PATH];
  DWORD dwType;
  //打开根键
  if(RegOpenKey(HKEY_CLASSES_ROOT,NULL,&hKeyRoot)==ERROR_SUCCESS)
  {//打开子键
    if(RegOpenKeyEx(hKeyRoot,"htmlfile\\shell\\open\\command",0,KEY_ALL_ACCESS,&hKeySub)==ERROR_SUCCESS)
    {//获取默认浏览器命令行
  	RegEnumValue(hKeySub, 0, ValueName, &cbValueName, NULL,&dwType,DataValue, 	&cbDataValue);
	strcpy(IE,(char *)DataValue);
	strcat(IE,this->Edit1->Text.c_str());
	//启动浏览器
	WinExec(IE,SW_SHOW);
    }
    else
    MessageBox(Handle,"浏览器打开错误！","信息提示",MB_OK);
  }
  else
    MessageBox(Handle,"浏览器打开错误！","信息提示",MB_OK);
  //关闭注册表
  RegCloseKey(hKeySub);
  RegCloseKey(hKeyRoot);
}
//---------------------------------------------------------------------------