窗口过程函数

LRESULT CALLBACK WindowProc(
In HWND hWnd,//窗口句柄
In UINT uMsg,//消息ID
In WPARAM wParam,//参数1
In LPARAM lParam//参数2
);
uMsg常用类型如下:
WM_PAINT
WM_KEYDOWN
WM_DESTROY

示例如下：
LRESULT CALLBACK Wndproc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_PAINT:
Direct3D_Render(hWnd);//渲染
ValidateRect(hWnd, NULL);//重绘
break;
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)//按下ESC
DestroyWindow(hWnd);//销毁窗口并发送WM_DESTROY
break;
case WM_DESTROY:
Direct3D_CleanUp();//清理COM接口对象
PostQuitMessage(0);//发送终止线程请求
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);//执行默认处理
}
return 0;
}
wParam 与键盘有关的宏太多了，自己去WinUser.h里查