Vc.net to implement splash screen fade in

Looking for a long time did not find the implementation of the start screen to a fade in the code, had to write a, oh, it is good to show you.

#undef WINVER //取消原有版本定义,重新定义版本
#define WINVER 0x5000 //为了使AnimateWindow函数可用

#include <afxwin.h>

The ONCREATE,ONCLOSE,ONERASEBKGND and OnTimer message functions are then added to the related files separately. Remember to include in the associated destructor function:

SetTimer(1, 3000, NULL); //设定定时器1,定时3秒

Add a fade window or background bitmap code to the OnCreate message function:

BOOL CSplashWnd::OnCreate(LPCREATESTRUCT lpcs)
{
CenterWindow(); //窗口位于屏幕中心
AnimateWindow(GetSafeHwnd(), 500, AW_BLEND); //淡入图片0.5秒

return true;
}

The OnClose message function is to add a fading window or a background bitmap code:

void CSplashWnd::OnClose()
{
AnimateWindow(GetSafeHwnd(), 500, AW_BLEND | AW_HIDE); //淡出图片0.5秒

CWnd::OnClose();
}

The ONERASEBKGND message function is to add a background bitmap:

BOOL CSplashWnd::OnEraseBkgnd(CDC *pDC)
{
DDB mSplashBitmap;
mSplashBitmap.DisplayDDB(pDC, IDB_SPLASH); //显示位图资源IDB_SPLASH

return true;
}

The OnTimer message function is to add a timed shutdown code:

void CSplashWnd::OnTimer(UINT nIDEvent)
{
KillTimer(1); //关闭定时器1
PostMessage(WM_CLOSE, 0, 0); //发送关闭窗口信息
}

is not very simple, I see some about the bitmap and the window fade is very complicated, I just learn VC soon, can not understand. Had to come up with this simple method. Have any suggestions and comments welcome everyone to point out!