SetupPixelFormat设置像素格式

void SetupPixelFormat(HDC hDC)
{
int nPixelFormat;
static PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW |
PFD_SUPPORT_OPENGL |
PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
32,
0,0,0,0,0,0,
0,
0,
0,
0,0,0,0,
16,
0,
0,
PFD_MAIN_PLANE,
0,
0,0,0
};

ChoosePixelFormat(hDC,&pfd);

SetPixelFormat(hDC, nPixelFormat, &pfd);
//hDC表示设备句柄，

调用流程：
hdc = GetDC(hWnd);
g_HDC = hdc;
SetupPixelFormat(hdc);
hRC = wglCreateContext(hdc);//创建渲染描述表
wglMakeCurrent(hdc,hRC);//设置当前线程的OpenGL的渲染描述表