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为什么程序会在后台运行啊,实在是想不通,望前辈能赐教,不能嫌问题简单啊,本人刚开始学VC,源码如下:
#include <windows.h>
#include <stdio.h>
LRESULT CALLBACK WinSunProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
);
class CWnd
{
public:
CWnd();
BOOL CreateEx(
DWORD dwExStyle, // extended window style
LPCTSTR lpClassName, // pointer to registered class name
LPCTSTR lpWindowName, // pointer to window name
DWORD dwStyle, // window style
int x, // horizontal position of window
int y, // vertical position of window
int nWidth, // window width
int nHeight, // window height
HWND hWndParent, // handle to parent or owner window
HMENU hMenu, // handle to menu, or child-window identifier
HINSTANCE hInstance, // handle to application instance
LPVOID lpParam); // pointer to window-creation data
BOOL ShowWindow(int nCmdShow); // show state of window
BOOL UpdateWindow();
public:
HWND m_hWnd;
};
CWnd::CWnd()
{
m_hWnd=NULL;
}
BOOL CWnd::CreateEx(
DWORD dwExStyle, // extended window style
LPCTSTR lpClassName, // pointer to registered class name
LPCTSTR lpWindowName, // pointer to window name
DWORD dwStyle, // window style
int x, // horizontal position of window
int y, // vertical position of window
int nWidth, // window width
int nHeight, // window height
HWND hWndParent, // handle to parent or owner window
HMENU hMenu, // handle to menu, or child-window identifier
HINSTANCE hInstance, // handle to application instance
LPVOID lpParam)
{
m_hWnd=::CreateWindowEx(dwExStyle,lpClassName,lpWindowName,dwStyle,x,y,
nWidth,nHeight,hWndParent,hMenu,hInstance,lpParam);
if(m_hWnd!=NULL)
return TRUE;
else
return FALSE;
}
BOOL CWnd::ShowWindow(int nCmdShow)
{
return ::ShowWindow(m_hWnd,nCmdShow);
}
BOOL CWnd::UpdateWindow()
{
return ::UpdateWindow(m_hWnd);
}
int WINAPI WinMain(
HINSTANCE hInstance, // handle to current instance
HINSTANCE hPrevInstance, // handle to previous instance
LPSTR lpCmdLine, // pointer to command line
int nCmdShow // show state of window
)
{
WNDCLASS wndcls;
wndcls.cbClsExtra=0;
wndcls.cbWndExtra=0;
wndcls.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wndcls.hCursor=LoadCursor(NULL,IDC_CROSS);
wndcls.hIcon=LoadIcon(NULL,IDI_ERROR);
wndcls.lpfnWndProc=WinSunProc;
wndcls.lpszClassName="sun2006";
wndcls.lpszMenuName=NULL;
wndcls.style=CS_VREDRAW | CS_HREDRAW;
RegisterClass(&wndcls);
CWnd cwnd;
cwnd.CreateEx(NULL,"sun2006","weixin",WS_OVERLAPPEDWINDOW,0,0,
800,600,NULL,NULL,hInstance,NULL);
cwnd.ShowWindow(SW_SHOWNORMAL);
cwnd.UpdateWindow();
MSG msg;
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
LRESULT CALLBACK WinSunProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)
{
switch(uMsg)
{
case WM_CLOSE:
if(IDYES==::MessageBox(hwnd,"真的要退出吗?","警告",MB_YESNO))
{
::DestroyWindow(hwnd);
}
break;
case WM_DESTROY:
::PostQuitMessage(0);
break;
default:
return ::DefWindowProc(hwnd,uMsg,wParam,lParam);
}
return 0;
} |
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