关于弹出消息窗口的自动关闭

1.方法1

1.1. 直接在代码中添加

// 弹出消息窗口自动关闭，需要指出的是，Windows 2000的user32.dll没有导出这个函数。
extern "C"
{int WINAPI MessageBoxTimeoutA(IN HWND hWnd, IN LPCSTR lpText, IN LPCSTR lpCaption, IN UINT uType, IN WORD wLanguageId, IN DWORD dwMilliseconds);int WINAPI MessageBoxTimeoutW(IN HWND hWnd, IN LPCWSTR lpText, IN LPCWSTR lpCaption, IN UINT uType, IN WORD wLanguageId, IN DWORD dwMilliseconds);
};
#ifdef UNICODE
#define MessageBoxTimeout MessageBoxTimeoutW
#else
#define MessageBoxTimeout MessageBoxTimeoutA
#endif

1.2. 调用

    MessageBoxTimeout(this->GetSafeHwnd(), _T("弹出5秒后会自动关闭！这是一个模态对话框。"), _T("会自动关闭的MessageBox"),  MB_ICONINFORMATION, GetSystemDefaultLangID(), 5000);//参数说明：父窗口的句柄为NULL的情况下，将弹出非模态对话框；延时关闭的时间为0的情况下，弹出的MessageBox需要手动关闭MessageBoxTimeout(NULL, _T("弹出5秒后会自动关闭！这是一个非模态对话框。"), _T("会自动关闭的MessageBox"),  MB_ICONINFORMATION, GetSystemDefaultLangID(), 5000);

参考网址：http://blog.sina.com.cn/s/blog_4b0f3b420100mglb.html

win7 x86，vs2013，测试通过

2.方法2

2.1.此api是微软的一个未公开api，在user32.dll中，功能就是弹出一个对话框MessageBox，并定时自动退出。
下面为头文件，随便取个名字，我取的是MsgBoxTimeout.h 。

#include <windows.h>
#include <tchar.h>//Functions & other definitions required-->
typedef int (__stdcall *MSGBOXAAPI)(IN HWND hWnd, IN LPCSTR lpText, IN LPCSTR lpCaption, IN UINT uType, IN WORD wLanguageId, IN DWORD dwMilliseconds);
typedef int (__stdcall *MSGBOXWAPI)(IN HWND hWnd, IN LPCWSTR lpText, IN LPCWSTR lpCaption, IN UINT uType, IN WORD wLanguageId, IN DWORD dwMilliseconds);int MessageBoxTimeoutA(IN HWND hWnd, IN LPCSTR lpText, IN LPCSTR lpCaption, IN UINT uType, IN WORD wLanguageId, IN DWORD dwMilliseconds);
int MessageBoxTimeoutW(IN HWND hWnd, IN LPCWSTR lpText, IN LPCWSTR lpCaption, IN UINT uType, IN WORD wLanguageId, IN DWORD dwMilliseconds);#ifdef UNICODE#define MessageBoxTimeout MessageBoxTimeoutW
#else#define MessageBoxTimeout MessageBoxTimeoutA
#endif #define MB_TIMEDOUT 32000int MessageBoxTimeoutA(HWND hWnd, LPCSTR lpText, LPCSTR lpCaption, UINT uType, WORD wLanguageId, DWORD dwMilliseconds)
{static MSGBOXAAPI MsgBoxTOA = NULL;if (!MsgBoxTOA){HMODULE hUser32 = GetModuleHandle(_T("user32.dll"));if (hUser32){MsgBoxTOA = (MSGBOXAAPI)GetProcAddress(hUser32, "MessageBoxTimeoutA");//fall through to 'if (MsgBoxTOA)...'}else{//stuff happened, add code to handle it here //(possibly just call MessageBox())return 0;}}if (MsgBoxTOA){return MsgBoxTOA(hWnd, lpText, lpCaption, uType, wLanguageId, dwMilliseconds);}return 0;
}int MessageBoxTimeoutW(HWND hWnd, LPCWSTR lpText, LPCWSTR lpCaption, UINT uType, WORD wLanguageId, DWORD dwMilliseconds)
{static MSGBOXWAPI MsgBoxTOW = NULL;if (!MsgBoxTOW){HMODULE hUser32 = GetModuleHandle(_T("user32.dll"));if (hUser32){MsgBoxTOW = (MSGBOXWAPI)GetProcAddress(hUser32, "MessageBoxTimeoutW");//fall through to 'if (MsgBoxTOW)...'}else{//stuff happened, add code to handle it here //(possibly just call MessageBox())return 0;}}if (MsgBoxTOW){return MsgBoxTOW(hWnd, lpText, lpCaption, uType, wLanguageId, dwMilliseconds);}return 0;
}
//End required definitions <--

2.2. 调用方式

#include "MsgBoxTimeout.h"
void CTestDlg::OnBnClickedButton2()
{//you must load user32.dll before calling the functionHMODULE hUser32 = LoadLibrary(_T("user32.dll"));if (hUser32){int iRet = 0;UINT uiFlags = MB_OK | MB_SETFOREGROUND | MB_SYSTEMMODAL | MB_ICONINFORMATION;iRet = MessageBoxTimeout(NULL, _T("Test a timeout of 2 seconds."),_T("MessageBoxTimeout Test"), uiFlags, 0, 2000);//iRet will = 1uiFlags = MB_YESNO | MB_SETFOREGROUND | MB_SYSTEMMODAL | MB_ICONINFORMATION;iRet = MessageBoxTimeout(NULL, _T("Test a timeout of 5 seconds."),_T("MessageBoxTimeout Test"), uiFlags, 0, 5000);//iRet will = MB_TIMEDOUT if no buttons pressed, button values otherwise//only unload user32.dll when you have no further need //for the MessageBoxTimeout functionFreeLibrary(hUser32);}
}

参考网址：http://blog.csdn.net/a379039233/article/details/49445207

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