请高手帮忙看下！问题出在哪了？

Question

WinApp.h
============================================================================================================
#include <windows.h>/*--------------------------------------------------------------------------------------------------
*
* ClassName: cBaseGui
*   Comment: all window gui base class
*
--------------------------------------------------------------------------------------------------*/
class cBaseGui
{
public:
cBaseGui *pPrevObj;
cBaseGui *pNextObj;
HWND hWnd;

cBaseGui(void);

virtual void onCreate(void);
virtual void onDestroy(void);
virtual void onClick(void);
};/*--------------------------------------------------------------------------------------------------
*
* ClassName: cBaseWindow
*   Comment:
*
--------------------------------------------------------------------------------------------------*/
class cBaseWindow:public cBaseGui
{
private:
static bool reCheck;

static LRESULT CALLBACK WindowProc(HWND hWnd,UINT uMessageCode,WPARAM wParam,LPARAM lParam);
public:
LPCSTR lpcstrCaption;

cBaseWindow(void);
~cBaseWindow(void);

void Show(void);
void Hide(void);
HWND Create(LPCSTR lpcstrNewCaption,
int nXpos,
int nYpos,
int nWidth,
int nHeight,
HWND  hWndParent);

virtual void onCreate(void);
virtual void onDestroy(void);
virtual void onClick(void);
};/*--------------------------------------------------------------------------------------------------
*
* ClassName: cWindows
*   Comment:
*
--------------------------------------------------------------------------------------------------*/
class cWindows
{
private:
cBaseGui* pHomeWindow;
cBaseGui* pTialWindow;
public:
int nCount;

cWindows(void);
~cWindows(void);

void  AppendWindow(cBaseWindow* pWindow);
cBaseGui*  GetWndClsObjFromHwnd(HWND hWnd);
void RemoveWindow(cBaseWindow* pWindow);
};/*--------------------------------------------------------------------------------------------------
*
* ClassName: cApplication
*   Comment:
*
--------------------------------------------------------------------------------------------------*/
class cApplication
{
public:
static bool reCheck;
HINSTANCE hThisInstance;
HINSTANCE hPrevInstance;
LPSTR lpstrCommandLine;
int nShowCmd;
cWindows* pWindows; cApplication(void);
~cApplication(void);

virtual int InitApplication(void);
virtual int MessageLoop(void);
};
/*------------------------------------------------------------------------------------------------*/
WinApp.cpp
===================================================================================================

Answer 1

WinApp.cpp 
===================================================================================================
#include "WinApp.h"bool cBaseWindow::reCheck = false;
bool cApplication::reCheck = false;cApplication* theApplication;/*--------------------------------------------------------------------------------------------------
*
* ClassName: cBaseGui
*   Comment: all window gui base class
*
--------------------------------------------------------------------------------------------------*/
cBaseGui::cBaseGui()
{
this->pNextObj = NULL;
this->pPrevObj = NULL;
}void cBaseGui::onCreate(void)
{
}void cBaseGui::onDestroy(void)
{
}void cBaseGui::onClick(void)
{
}/*--------------------------------------------------------------------------------------------------
*
* ClassName: cBaseWindow
*   Comment:
*
--------------------------------------------------------------------------------------------------*/
cBaseWindow::cBaseWindow(void)
{
WNDCLASSEX WndClEx; if(!cBaseWindow::reCheck)
{
WndClEx.cbSize = sizeof(WNDCLASSEX);
WndClEx.cbClsExtra = 0;
WndClEx.cbWndExtra = 0;
WndClEx.style = CS_HREDRAW|CS_VREDRAW|CS_BYTEALIGNWINDOW;
WndClEx.hbrBackground = (HBRUSH)COLOR_BACKGROUND;
WndClEx.hIcon = LoadIcon(NULL, IDI_APPLICATION);
WndClEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
WndClEx.hCursor = LoadCursor(NULL, IDC_ARROW);
WndClEx.hInstance = theApplication->hThisInstance;
WndClEx.lpszMenuName = NULL;
WndClEx.lpszClassName = "WndFrame_BlueMouse";
WndClEx.lpfnWndProc = this->WindowProc;
RegisterClassEx(&WndClEx);
cBaseWindow::reCheck = false;
}
theApplication->pWindows->AppendWindow(this);
}cBaseWindow::~cBaseWindow(void)
{
DestroyWindow(this->hWnd);
theApplication->pWindows->RemoveWindow(this);
}HWND cBaseWindow::Create(LPCSTR lpcstrNewCaption,
 int nXpos,
 int nYpos,
 int nWidth,
 int nHeight,
 HWND hWndParent)
{
this->hWnd = CreateWindowEx(0,
"WndFrame_BlueMouse",
lpcstrNewCaption,
WS_OVERLAPPEDWINDOW,
nXpos,
nYpos,
nWidth,
nHeight,
hWndParent,
NULL,
theApplication->hThisInstance,
this
   );
}LRESULT CALLBACK cBaseWindow::WindowProc(HWND hWnd,UINT uMessageCode,WPARAM wParam,LPARAM lParam)
{
cBaseWindow *pWindow; if(uMessageCode==WM_NCCREATE)
{
pWindow = (cBaseWindow*)((LPCREATESTRUCT) lParam)->lpCreateParams;
SetWindowLong(hWnd,GWL_USERDATA,(long)pWindow);
}
else
{
pWindow = (cBaseWindow*)GetWindowLong(hWnd,GWL_USERDATA);
}    switch(uMessageCode)
    {
     case WM_CREATE:
pWindow->onCreate();
break;
case WM_DESTROY:
pWindow->onDestroy();
break;
case WM_LBUTTONUP:
pWindow->onClick();
break;
        default:
            return DefWindowProc (hWnd, uMessageCode, wParam, lParam);
    }
    return 0;
}void cBaseWindow::Show(void)
{
ShowWindow(this->hWnd,SW_SHOWDEFAULT);
}void cBaseWindow::Hide(void)
{
ShowWindow(this->hWnd,SW_HIDE);
}void cBaseWindow::onCreate(void)
{
}void cBaseWindow::onDestroy(void)
{
}void cBaseWindow::onClick(void)
{
}/*--------------------------------------------------------------------------------------------------
*
* ClassName: cWindows
*   Comment:
*
--------------------------------------------------------------------------------------------------*/
cWindows::cWindows(void)
{
this->pHomeWindow = NULL;
this->pTialWindow = NULL;
}cWindows::~cWindows(void)
{
cBaseGui* pWindow;
cBaseGui* pNextWindow;

pWindow = this->pHomeWindow;
while(pWindow!=NULL)
{
pNextWindow = pWindow->pNextObj;
this->RemoveWindow((cBaseWindow*)pWindow);
pWindow = pNextWindow;
}
}void cWindows::AppendWindow(cBaseWindow* pWindow)
{
if(this->nCount<=0)
{
this->pHomeWindow = pWindow;
this->pTialWindow = pWindow;
pWindow->pPrevObj = NULL;
pWindow->pNextObj = NULL;
}
else
{
pWindow->pPrevObj = this->pTialWindow;
pWindow->pNextObj = NULL;
this->pTialWindow = pWindow;
}
this->nCount++;
}cBaseGui* cWindows::GetWndClsObjFromHwnd(HWND hWnd)
{
cBaseGui* pThisWindow; pThisWindow = this->pHomeWindow;
while(pThisWindow!=NULL)
{
if(pThisWindow->hWnd==hWnd)
{
break;
}
pThisWindow = pThisWindow->pNextObj;
}
return pThisWindow;
}void cWindows::RemoveWindow(cBaseWindow* pWindow)
{
if(pWindow->pPrevObj!=NULL)
{
if(pWindow->pNextObj!=NULL)
{
pWindow->pPrevObj->pNextObj = pWindow->pNextObj;
}
else
{
pWindow->pPrevObj->pNextObj = NULL;
this->pTialWindow = pWindow->pPrevObj;
}
}
else
{
if(pWindow->pNextObj!=NULL)
{
pWindow->pNextObj->pPrevObj = NULL;
this->pHomeWindow = pWindow->pNextObj;
}
else
{
this->pHomeWindow = NULL;
this->pTialWindow = NULL;
}
}
this->nCount--;
}/*--------------------------------------------------------------------------------------------------
*
* ClassName: cApplication
*   Comment:
*
--------------------------------------------------------------------------------------------------*/
cApplication::cApplication(void)
{
if(cApplication::reCheck)
{
MessageBox(NULL,"Re create object from capplicaton class.","error",MB_OK|MB_ICONERROR);
exit(-1);
}
else
{
theApplication  = this;
theApplication->reCheck = true;
this->pWindows = new cWindows(); }
}
cApplication::~cApplication(void)
{
delete this->pWindows;
}int cApplication::InitApplication(void)
{
}
int cApplication::MessageLoop(void)
{
MSG Messages;    while(GetMessage(&Messages,NULL,0,0))
    {
        TranslateMessage(&Messages);
        DispatchMessage(&Messages);
    }
    return Messages.wParam;
}/*--------------------------------------------------------------------------------------------------
*
* ProcName: WinMain
*  Comment: windows gui program main proc
*
--------------------------------------------------------------------------------------------------*/
int WINAPI WinMain(HINSTANCE  hThisInstance,
   HINSTANCE  hPrevInstance,
   LPSTR  lpstrCommandLine,
   int  nShowCmd)
{
int Retval; theApplication->hThisInstance = hThisInstance;
theApplication->hPrevInstance = hPrevInstance;
theApplication->lpstrCommandLine = lpstrCommandLine;
theApplication->nShowCmd = nShowCmd;
Retval = theApplication->InitApplication(); if(theApplication->pWindows->nCount>0)
{
Retval = theApplication->MessageLoop();
delete  theApplication;
}
return Retval;
}
/*------------------------------------------------------------------------------------------------*/

Answer 2

main.h
=====================================================
#include "WinApp.h"class MyApp:public cApplication
{
public:
int InitApplication(void);
};class MainWindow:public cBaseWindow
{
public:
void onCreate(void);
void onDestroy(void);
void onClick(void);
};
main.cpp
====================================================#include "main.h"MyApp theApp;int MyApp::InitApplication(void)
{
MainWindow* pMainWindow;

MessageBox(NULL,
   "This is a 'InitApplication' method from 'MyApp' class.",
   "Information",
   MB_OK|MB_ICONINFORMATION
  );
pMainWindow = new MainWindow();
pMainWindow->Create("MainWindow caption.",CW_USEDEFAULT,CW_USEDEFAULT,500,400,HWND_DESKTOP);
pMainWindow->Show();
}void MainWindow::onCreate(void)
{
MessageBox(NULL,
   "This is a 'onCreate' event from 'MainWindow' class.",
   "Information",
   MB_OK|MB_ICONINFORMATION
  );
}void MainWindow::onDestroy(void)
{
MessageBox(NULL,
   "This is a 'onDestroy' event from 'MainWindow' class.",
   "Information",
   MB_OK|MB_ICONINFORMATION
  );
PostQuitMessage(0);
}void MainWindow::onClick(void)
{
MessageBoxA(NULL,
"This is a 'onClick' event from 'MainWindow' class.",
"Information",
MB_OK|MB_ICONINFORMATION
   );
}当程序执行到 MainWindow::onDestroy 中的 PostQuitMessage(0)  出现了非法操作！不知道是哪里的问题！

Answer 3

没大看明白,
PostQuitMessage之前,最好把该释放的资源都释放了,特别是跟窗口有关的.