刪除轉譯內容

下列程式碼範例示範如何在 OpenGL 視窗關閉時刪除 OpenGL 轉譯內容。 這是建立 轉譯內容並將它設為目前的案例的接續。

// a window is about to be destroyed  
case WM_DESTROY: 
    { 
    // local variables  
    HGLRC    hglrc; 
    HDC      hdc ; 
 
    // if the thread has a current rendering context ...  
    if(hglrc = wglGetCurrentContext()) { 
 
        // obtain its associated device context  
        hdc = wglGetCurrentDC() ; 
 
        // make the rendering context not current  
        wglMakeCurrent(NULL, NULL) ; 
 
        // release the device context  
        ReleaseDC (hwnd, hdc) ; 
 
        // delete the rendering context  
        wglDeleteContext(hglrc); 
 
        }