mainform.cpp

来自「C++ BUILDER精彩编程实例集锦(源码)3 第五部分 系统编程 第六部」· C++ 代码 · 共 51 行

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

#include <vcl.h>
#pragma hdrstop

#include "MainForm.h"
#include <mmsystem.h>
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
   this->Edit1->Text="";
   this->Edit2->Text="";
}
//---------------------------------------------------------------------------


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

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
    int wavedevice,mididevice;
    WAVEOUTCAPS wavecap;
    MIDIOUTCAPS midicap;
    wavedevice=(int)waveOutGetNumDevs();
    mididevice=(int)midiOutGetNumDevs();
    if (wavedevice==0)
      this->Edit1->Text="没有发现波形设备";
    else
    {
       waveOutGetDevCaps(0,&wavecap,sizeof(WAVEOUTCAPS));
       this->Edit1->Text=String(wavecap.szPname);
    }
    if (mididevice==0)
       this->Edit2->Text="没有发现MIDI设备";
    else
    {
       midiOutGetDevCaps(0,&midicap,sizeof(MIDIOUTCAPS));
       this->Edit2->Text=String(midicap.szPname);
    }
}
//---------------------------------------------------------------------------