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const LPTSTR pName = NULL; // 此处为空,就是本机
const DWORD Level = 2; // 指定端口类型结构体,即PORT_INFO_2
LPBYTE port=0; // 接收端口信息结构体数组指针
DWORD pcbNeeded=0; // 缓冲区字节指针(必需)
DWORD pcReturned=0; // 返回结果PORT_INFO_* 结构体缓冲区数量
if (EnumPorts(NULL,Level,port,0,&pcbNeeded,&pcReturned))
{
return ;//同一函数,第一次执行获取所需缓冲区大小pcbNeeded
}
port = new BYTE[pcbNeeded];
if (!EnumPorts(pName,Level,port,pcbNeeded,&pcbNeeded,&pcReturned))
{
return ;//同一函数,第二次执行获取端口个数pcReturned
}
PORT_INFO_2 ArrPort[100] = {0};
memcpy(ArrPort,port,pcbNeeded);//取出端口信息放入数组
for(int i=0;i<pcReturned;i++)
{
//printf("%s \r\n",ArrPort[i].pPortName); //返回端口名称
Memo1->Lines->Add(ArrPort[i].pPortName);
}
delete port;
#include <registry.hpp>
void __fastcall TForm1::Button1Click(TObject *Sender)
{
TRegistry *reg = new TRegistry;
reg->RootKey = HKEY_LOCAL_MACHINE;
reg->OpenKey("HARDWARE\\DEVICEMAP\\SERIALCOMM", true);
cbxComlist->Sorted = false;
reg->GetValueNames(cbxComlist->Items);
cbxComlist->Items->BeginUpdate();
for (int i=0; i<cbxComlist->Items->Count; i++) //这里你自己手误?
cbxComlist->Items->Strings[i] =
reg->ReadString(cbxComlist->Items->Strings[i]);
cbxComlist->Items->EndUpdate();
delete reg;
cbxComlist->Sorted = true;
}
代码测试没问题,你自己检查下~~