OpenGL系統設計-融合DirectXAudio(2)

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當對
DirectAudio設定完畢後，我們回到
OpenGL中。對
OpenGL的初始化函數
glInit和主迴圈函數
glMain不需要任何更改，需要的是對輸入響應函數
KeyPressed進行修改，當按滑鼠左鍵時開始播放音樂，按右鍵時停止播放音樂。

 

int KeyPressed()

{

   
if(buffer[DIK_ESCAPE]) 
//
這裡的值都是DIK_***
，而不是VK_***

       
return FALSE;

   

……

//
前面對鍵盤方向鍵的處理不變

 

   
//
按滑鼠左鍵開始播放音樂

   
if(mouseState.rgbButtons[MOUSE_LEFT] &
0x80)

   
{

       
//
播放音樂，迴圈次數為無限

       
DMPlay(&sound,
DMUS_SEG_REPEAT_INFINITE);

   
}

 

   
//
按滑鼠右鍵停止播放音樂

   
if(mouseState.rgbButtons[MOUSE_RIGHT] &
0x80)

   
{

       
DMStop(&sound);

   
}

 

   
return TRUE;

}