Process still active when application exits
I noticed that when I close my window it is still in the active process's list when I hit ctrl-alt-del on my XP box. This happens no matter what except when i try to debug. Anyone know why it happens? Well ill post the code here:
Main.cpp
Code:
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
CBWin cWin = CBWin(hInstance, "My Window", 300,300, 300, 200);
if(!cWin.Create(WS_OVERLAPPED | WS_SYSMENU, WS_EX_APPWINDOW))
{ return(0);
}
cWin.Show(SW_SHOW);
//::UpdateWindow(cWin.GetHandle());
MSG msg;
HWND hWnd = cWin.GetHandle();
while(::GetMessage(&msg,hWnd,0,0))
{ if(!IsDialogMessage(hWnd,&msg))
{ TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return(msg.wParam);
}
CBWin.H
Code:
#ifndef __CBWIN_H__
#define __CBWIN_H__
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include<Windows.h>
#include<string>
using std::string;
#define CNAME "CBWIN"
class CBWin{
public:
CBWin();
//Pre: None
//Post:
CBWin(const HINSTANCE& hInstance, const string& strWindowName, const UINT& uiXPos, const UINT& uiYPos,
const UINT& uiXSize, const UINT& uiYSize);
~CBWin();
//Pre:
//Post:
BOOL Create(const DWORD& dwStyle, const DWORD& dwExStyle);
//Pre:
//Post:
BOOL Show(int nShow);
//Pre:
//Post:
const HWND& GetHandle() const;
private:
//typedef unsigned int UINT;
HWND hCBWin;
HINSTANCE hInst;
string strWName;
UINT uiWidth;
UINT uiHeight;
UINT uiX;
UINT uiY;
BOOL bInitFail; // True indicates creation faiure
BOOL RegisterWindow();
//Pre: Takes a UINT parameter representing styles to add to the WNDCLASSEX struct
//Post: Registers a default window w/ styles of CS_OWNDC, CS_VREDRAW, CS_HREDRAW,
// CS_DBLCLKS, returns TRUE if reigstration was successful
BOOL BuildWindow(const DWORD& dwStyle,const DWORD& dwExStyle);
//Pre: Recieves two DWORDS, the window style and the extended window style
//Post: Returns TRUE if the Creation was succesful, FALSE if not
static LRESULT CALLBACK WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
protected:
virtual LRESULT CALLBACK WindowProc(const HWND& hWnd, const UINT& Msg, const WPARAM& wParam, const LPARAM& lParam);
//Pre:
//Post:
};
#endif
and CBWin.cpp
Code:
#include"CBWin.h"
CBWin::CBWin()
: hCBWin(NULL), hInst(NULL), uiX(100), uiY(100), uiWidth(300), uiHeight(200), strWName("Window"), bInitFail(TRUE)
{
}
CBWin::CBWin(const HINSTANCE& hInstance, const string& strWindowName, const UINT& uiXPos, const UINT& uiYPos,
const UINT& uiXSize, const UINT& uiYSize)
: hCBWin(NULL), hInst(hInstance), strWName(strWindowName), uiX(uiXPos), uiY(uiYPos), uiWidth(uiXSize),
uiHeight(uiYSize), bInitFail(FALSE)
{
}
CBWin::~CBWin()
{ ::UnregisterClass(CNAME,hInst);
hCBWin = NULL;
hInst = NULL;
}
BOOL CBWin::Create(const DWORD& dwStyle, const DWORD& dwExStyle)
{ if(!bInitFail && !RegisterWindow())
{ bInitFail = TRUE;
}
if(!bInitFail && !BuildWindow(dwStyle,dwExStyle))
{ bInitFail = TRUE;
}
return(!bInitFail);
}
BOOL CBWin::Show(int nShow)
{ BOOL bShow = TRUE;
if(!::ShowWindow(hCBWin,nShow))
bShow = FALSE;
return(bShow);
}
const HWND& CBWin::GetHandle() const
{ return hCBWin;
}
BOOL CBWin::RegisterWindow()
{ ::WNDCLASSEX wndClass;
ZeroMemory(&wndClass,sizeof(WNDCLASSEX));
wndClass.cbSize = sizeof(WNDCLASSEX);
wndClass.hInstance = hInst;
wndClass.lpszClassName = CNAME; // Defined in CBWin.h
wndClass.lpszMenuName = NULL;
wndClass.hIcon = ::LoadIcon(NULL,IDI_APPLICATION);
wndClass.hIconSm = ::LoadIcon(NULL,IDI_APPLICATION);
wndClass.hbrBackground = (HBRUSH)COLOR_WINDOW;
wndClass.hCursor = ::LoadCursor(NULL,IDC_ARROW);
wndClass.lpfnWndProc = WndProc;
wndClass.style = CS_HREDRAW | CS_VREDRAW;
if(!RegisterClassEx(&wndClass))
{ ::MessageBox(NULL,"ERROR REGISTERING WNDCLASSEX","CRITICAL ERROR", MB_ICONERROR | MB_OK);
return(FALSE);
}
return(TRUE);
}
BOOL CBWin::BuildWindow(const DWORD& dwStyle, const DWORD& dwExStyle)
{ if(!bInitFail) // if there was no problem registering the window
{ hCBWin = CreateWindowEx(dwExStyle,
CNAME, // Class Name
strWName.c_str(), // Window Name
dwStyle,
uiX, // X Pos
uiY, // Y Pos
uiWidth, // Width
uiHeight, // Height
NULL, // Handle to parent window
NULL, // Handle to MENU
hInst, // Application Instance
(LPVOID)this);
if(!hCBWin)
{ ::MessageBox(NULL,"ERROR CREATING WINDOW","CRITICAL ERROR", MB_ICONERROR | MB_OK);
return(FALSE);
}
return(TRUE);
}
return(FALSE);
}
LRESULT CALLBACK CBWin::WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{ static CBWin* pCWin;
switch(Msg)
{ case WM_NCCREATE:
{ LPCREATESTRUCT lpCS = (LPCREATESTRUCT)lParam;
pCWin = (CBWin*)lpCS->lpCreateParams;
::SetWindowText(hWnd,lpCS->lpszName);
return(::DefWindowProc(hWnd,Msg,wParam,lParam));
}
case WM_CLOSE:
{ ::DestroyWindow(hWnd);
return(0);
}
default:
{ if(pCWin)
{ return(pCWin->WindowProc(hWnd,Msg,wParam,lParam));
}
else
return(::DefWindowProc(hWnd,Msg,wParam,lParam));
}
}
}
LRESULT CALLBACK CBWin::WindowProc(const HWND& hWnd, const UINT& Msg, const WPARAM& wParam, const LPARAM& lParam)
{ switch(Msg)
{
case WM_DESTROY:
{ ::PostQuitMessage(0);
return(0);
}
default:
return(::DefWindowProc(hWnd,Msg,wParam,lParam));
}
}
Thanks in advance if you see why this doesnt work how it should.
