visual-studio-2010 - 我如何播放声音文件，文件名来自系统字符串

Question

String ^ fileName = textBox5->Text + "DES.wav";

PlaySound(fileName, NULL, SND_FILENAME | SND_SYNC);

错误是说：

错误 4 错误 C2664：“PlaySoundW”：无法将参数 1 从“System::String ^”转换为“LPCWSTR”

Answer 1

无需混合托管和非托管代码，使用SoundPlayer类：

String ^ fileName = textBox5->Text + "DES.wav";
SoundPlayer^ player = gcnew SoundPlayer(filename);
player->PlaySync();    // or Play for asynchronous execution

http://msdn.microsoft.com/en-us/library/system.media.soundplayer.aspx