プログラマ専用SNS ミクプラ

コード:

char buf[1000];
DWORD dwFlags=0;
MCI_OPEN_PARMS mop;
 
dwFlags|=MCI_OPEN_TYPE;
mop.lpstrDeviceType="MPEGVideo";
 
dwFlags|=MCI_OPEN_ELEMENT;
mop.lpstrElementName="test.mp3";
 
dwFlags|=MCI_WAIT;
MCIERROR ret=mciSendCommand(NULL,MCI_OPEN,dwFlags,(DWORD)&mop);
if(ret==0){
     mciSendCommand(mop.wDeviceID,MCI_PLAY,0,0);
}else{
     mciGetErrorString(ret,buf,sizeof(buf));
     MessageBox::Show(gcnew String(buf),"error");
}

コード:

mciGetErrorString(ret,buf,sizeof(buf));

コード:

		//文字列配列
		static array<System::String^>^ files;
		static array<System::String^>^ iType={".3g2",".3gp",".3gp2",".3gpp",".aac",
											  ".adt",".adts",".aif",".aifc",".aiff",
											  ".asf",".asx",".au",".dat",".ivf",
											  ".m1v",".m2t",".m2ts",".m2v",".m3u",
											  ".m4a",".m4v",".mod",".mov",".mp2",
											  ".mp2v",".mp3",".mp4",".mp4v",".mpa",
											  ".mpe",".mpeg",".mpg",".mpv2",".mts",
											  ".snd",".ts",".tts",".wax",".wm",
											  ".wma",".wmv",".wmx",".wpl",".wvx",
											  ".avi",".cda",".wav",".mid",".midi",
											  ".rmi"
											 };
		//ファイルドラッグアンドドロップ
	private: System::Void Form1_DragDrop(System::Object^  sender, System::Windows::Forms::DragEventArgs^  e) {
				 //if
				 if(e ->Data ->GetDataPresent(DataFormats::FileDrop)){//もしファイルドロップされた場合
					 //文字列配列
					 files=array<System::String^>(e->Data->GetData(DataFormats::FileDrop , false));
					 //if
					 if(setPlayer((char*)System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(findType(0)).ToPointer(),
								  (char*)System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(files[0]).ToPointer())==true){
									  //playMusicメソッド
									  playMusic();//playMusicメソッド呼び出し
					 }
				 }//if終了
			 }//メソッド終了
			 //playMusicメソッド
	private: void playMusic(){
				 //char配列
			     char buf[1000];
				 //MCI
				 MCIERROR ret=mciSendCommand(mop.wDeviceID,MCI_PLAY,0,0);//MCIコマンド
				 //if
				 if(ret){//もしエラーがある場合
					 //エラー内容取得
					 mciGetErrorString(ret,buf,sizeof(buf));
					 //エラー内容をメッセージボックスに表示
					 MessageBox::Show(gcnew String(buf),"error");
				 }//if終了
			 }//playMusicメソッド終了
			 //setPlayerメソッド
	private: bool setPlayer(char* type,char* file){
				 //char配列
			     char buf[1000];
				 //DWORD
				 DWORD dwFlags=0;
				 //MCIのオープンタイプ設定
				 dwFlags|=MCI_OPEN_TYPE;
				 //タイプ名記入
				 mop.lpstrDeviceType=type;

				 //MCIのオープンエレメント設定
				 dwFlags|=MCI_OPEN_ELEMENT;
				 //ファイル先記入
				 mop.lpstrElementName=file;

				 //MCIのウェイト設定
				 dwFlags|=MCI_WAIT;
				 //MCIコマンド
				 MCIERROR ret=mciSendCommand(NULL,MCI_OPEN,dwFlags,(DWORD)&mop);
				 //エラー確認
				 //if
				 if(ret==0){//もしエラー無ければ
					 //return
					 return true;
				 //if
				 }else{//もしエラー有れば
					 //エラー内容取得
					 mciGetErrorString(ret,buf,sizeof(buf));
					 //エラー内容をメッセージボックスに表示
					 MessageBox::Show(gcnew String(buf),"error");
					 //return
					 return false;
				 }//if終了
			 }//setPlayerメソッド終了
			 //findTypeメソッド
	private: System::String^ findType(int x){
			 //int
			 int mType;
			 //文字列
			 String^ sType; 
			 //for
			 for(int i=0;i<iType->Length;i++){
				 //if
				 if(files[x]->Substring(files[x]->Length-4)->ToLower()==iType[i]){//ファイル拡張子見つけた場合
					 //int
					 mType=i;//i数字をmTypeにコピー
				 }//if終了
			 }//for終了
			 //if
			 if(mType<45){
				 //文字列
				 sType="MPEGVideo";//MPEGVideoをsTypeに入れる
			 //if
			 }else if(mType==45){
				 //文字列
				 sType="avivideo";//avivideoをsTypeに入れる
			 //if
			 }else if(mType==46){
				 //文字列
				 sType="CDAudio";//CDAudioをsTypeに入れる
			 //if
			 }else if(mType==47){
				 //文字列
				 sType="WaveAudio";//WaveAudioをsTypeに入れる
			 //if
			 }else{
				 //文字列
				 sType="Sequencer";//SequencerをsTypeに入れる
			 }//if終了
			 return sType;
		 }//findTypeメソッド終了

コード:

#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <mmsystem.h>
#pragma comment(lib,"winmm.lib")

#define MSG(m) {\
    MessageBoxA(NULL,m,NULL,MB_OK);}

//ウィンドウハンドル
HWND hwnd;
//インスタンスハンドル
HINSTANCE hinst;

//ウィンドウ横幅
#define WIDTH 500
#define HEIGHT 300



LRESULT CALLBACK WinProc( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp ) {
	static MCI_OPEN_PARMS open2;
	static MCI_PLAY_PARMS play2;
	static OPENFILENAME ofn = {0};
	static TCHAR strFile[MAX_PATH] , strCustom[256] = TEXT( "Before files\0*.*\0\0" );

	int result;

	char buf[1000];

	switch( msg ) {
	case WM_DESTROY:
		mciSendCommand( open2.wDeviceID, MCI_CLOSE, 0, 0 );

		PostQuitMessage( 0 );
		return 0;

	case WM_CREATE:
		ofn.lStructSize = sizeof ( OPENFILENAME );
		ofn.hwndOwner = hwnd;
		ofn.lpstrFilter =   TEXT( "mp3 files {*.mp3}\0*.mp3\0" )
		                    TEXT( "All files {*.*}\0*.*\0\0" );
		ofn.lpstrCustomFilter = strCustom;
		ofn.nMaxCustFilter = 256;
		ofn.nFilterIndex = 0;
		ofn.lpstrFile = strFile;
		ofn.nMaxFile = MAX_PATH;
		ofn.Flags = OFN_FILEMUSTEXIST;

		return 0;

	case WM_RBUTTONUP:

		GetOpenFileName( &ofn );
		SetWindowText( hwnd , strFile );

		//mp3再生の場合
		open2.lpstrDeviceType = "MPEGVideo";
		open2.lpstrElementName = strFile;
		result = mciSendCommand( 0, MCI_OPEN, MCI_OPEN_TYPE | MCI_OPEN_ELEMENT,
		                         ( DWORD_PTR )&open2 );

		//エラーなら０以外が返る
		if( result ) {
			//エラー取得
			mciGetErrorString( result, buf, sizeof( buf ) );
			MSG( buf );
			PostQuitMessage( 0 );
			return -1;
		}
		
		play2.dwCallback = ( DWORD )hwnd;
		result = mciSendCommand( open2.wDeviceID, MCI_PLAY, MCI_NOTIFY, ( DWORD_PTR )&play2 );
		//エラーなら０以外が返る
		if( result ) {
			//エラー取得
			mciGetErrorString( result, buf, sizeof( buf ) );
			MSG( buf );
			PostQuitMessage( 0 );
			return -1;
		}
		

		return 0;


	case MM_MCINOTIFY:
		if( lp == open2.wDeviceID ) {

			if( wp == MCI_NOTIFY_SUCCESSFUL ) {
				MSG( "再生完了" );
				//シークバーを先頭に戻す
				mciSendCommand( open2.wDeviceID, MCI_SEEK, MCI_SEEK_TO_START, 0 );
			}
			return 0;
		}

	}
	return DefWindowProc( hwnd, msg, wp, lp );
}

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd ) {
	MSG msg;
	WNDCLASS wc;

	wc.style = CS_HREDRAW | CS_VREDRAW;
	wc.lpfnWndProc = WinProc;
	wc.cbClsExtra = wc.cbWndExtra = 0;
	wc.hInstance = hInstance;
	wc.hCursor = wc.hIcon = NULL;
	wc.hbrBackground = ( HBRUSH )GetStockObject( BLACK_BRUSH );
	wc.lpszClassName = "test";
	wc.lpszMenuName = NULL;

	if( !RegisterClass( &wc ) ) {
		MSG( "クラスの登録失敗" );
		return -1;
	}

	//インスタンスハンドル
	hinst = hInstance;

	hwnd = CreateWindowA( "test", "テストウィンドウ", WS_VISIBLE | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
	                      0, 0, 400, 400, NULL, NULL, hInstance, NULL );


	if( hwnd == NULL ) {
		MSG( "ウィンドウ作成失敗" );
		return -1;
	}


	//エラーチェック用変数
	int check;

	while( check = GetMessage( &msg, NULL, 0, 0 ) ) {
		if( check == -1 ) {
			break;
		}
		DispatchMessage( &msg );
	}

	//クラス解放
	UnregisterClass( "test", hinst );

	return 0;

}