#include <windows.h>class ZWindow;ZWindow* g_pWnd = NULL;
#pragma pack(push,1)
struct _WndProcThunk
{
DWORD m_mov; // mov dword ptr [esp+0x4], pThis (esp+0x4 is hWnd)
DWORD m_this;
BYTE m_jmp; // jmp WndProc
DWORD m_relproc; // 相对jmp
};
#pragma pack(pop)//typedef void(*WNDPROC)();class ZWindow
{
public:
HWND m_hWnd; _WndProcThunk thunk; //ZWindow(HWND hWnd = 0) : m_hWnd(hWnd) { }
void Init(WNDPROC proc, void* pThis)
{
thunk.m_mov = 0x042444C7; //C7 44 24 04
thunk.m_this = (DWORD)pThis;
thunk.m_jmp = 0xe9;
thunk.m_relproc = (int)proc - ((int)this+sizeof(_WndProcThunk)); FlushInstructionCache(GetCurrentProcess(), &thunk, sizeof(thunk));
} inline BOOL ShowWindow(int nCmdShow)
{ return ::ShowWindow(m_hWnd, nCmdShow); } inline BOOL UpdateWindow()
{ return ::UpdateWindow(m_hWnd); } inline HDC BeginPaint(LPPAINTSTRUCT ps)
{ return ::BeginPaint(m_hWnd, ps); } inline BOOL EndPaint(LPPAINTSTRUCT ps)
{ return ::EndPaint(m_hWnd, ps); } inline BOOL GetClientRect(LPRECT rect)
{ return ::GetClientRect(m_hWnd, rect); }
BOOL Create(LPCTSTR szClassName, LPCTSTR szTitle, HINSTANCE hInstance,
HWND hWndParent = 0, DWORD dwStyle = WS_OVERLAPPEDWINDOW,
DWORD dwExStyle = 0, HMENU hMenu = 0, int x = CW_USEDEFAULT,
int y = CW_USEDEFAULT, int nWidth = CW_USEDEFAULT,
int nHeight = CW_USEDEFAULT)
{
m_hWnd = ::CreateWindowEx(dwExStyle, szClassName, szTitle, dwStyle,
x, y, nWidth, nHeight, hWndParent, hMenu,
hInstance, NULL);
return m_hWnd != NULL;
} virtual LRESULT OnPaint(WPARAM wParam, LPARAM lParam)
{
HDC hDC;
PAINTSTRUCT ps;
RECT rect; hDC = BeginPaint(&ps);
GetClientRect(&rect);
::DrawText(hDC, "Hello world", -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint(&ps);
return 0;
} virtual LRESULT OnLButtonDown(WPARAM wParam, LPARAM lParam)
{
return 0;
} virtual LRESULT OnCreate(WPARAM wParam, LPARAM lParam)
{
return 0;
} virtual LRESULT OnKeyDown(WPARAM wParam, LPARAM lParam)
{
return 0;
} static LRESULT CALLBACK StartWndProc(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
ZWindow* pThis = g_pWnd ;
pThis->m_hWnd = hWnd;
pThis->Init(WindowProc, pThis);
WNDPROC pProc = (WNDPROC)&(pThis->thunk);
WNDPROC pOldProc = (WNDPROC)::SetWindowLong(hWnd, GWL_WNDPROC, (LONG)pProc);
return pProc(hWnd, uMsg, wParam, lParam); }
static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{ ZWindow* pThis = (ZWindow*)hWnd;
pThis->ProcessWindowMessage(pThis->m_hWnd, uMsg, wParam, lParam) ;
return 0;
}
BOOL ProcessWindowMessage(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
if (uMsg == WM_NCDESTROY)
::PostQuitMessage(0); switch (uMsg)
{
case WM_CREATE:
OnCreate(wParam, lParam);
break; case WM_PAINT:
OnPaint(wParam, lParam);
break; case WM_LBUTTONDOWN:
OnLButtonDown(wParam, lParam);
break; case WM_KEYDOWN:
OnKeyDown(wParam, lParam);
break; case WM_DESTROY:
::PostQuitMessage(0);
break;
} return ::DefWindowProc(hWnd, uMsg, wParam, lParam); }
};class ZDriveWindow1 : public ZWindow
{
public:
LRESULT OnPaint(WPARAM wParam, LPARAM lParam)
{
HDC hDC;
PAINTSTRUCT ps;
RECT rect; hDC = BeginPaint(&ps);
GetClientRect(&rect);
::SetBkMode(hDC, TRANSPARENT);
::DrawText(hDC, "ZDriveWindow1", -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint(&ps); return 0;
} LRESULT OnLButtonDown(WPARAM wParam, LPARAM lParam)
{
::MessageBox(NULL, "ZDriveWindow1::OnLButtonDown", "Msg", MB_OK);
return 0;
}}; int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
char szAppName[] = "Hello world";
MSG msg;
WNDCLASS wnd;
ZDriveWindow1 zwnd1;
wnd.cbClsExtra = NULL;
wnd.cbWndExtra = NULL;
wnd.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
wnd.hCursor = LoadCursor(NULL, IDC_ARROW);
wnd.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wnd.hInstance = hInstance;
wnd.lpfnWndProc = ZWindow::StartWndProc;
wnd.lpszClassName = szAppName;
wnd.lpszMenuName = NULL;
wnd.style = CS_HREDRAW | CS_VREDRAW;
if (!RegisterClass(&wnd))
{
MessageBox(NULL, "Can not register window class", "Error",
MB_OK | MB_ICONINFORMATION);
return -1;
} g_pWnd = &zwnd1;
zwnd1.Create(szAppName, "Hell world", hInstance); zwnd1.ShowWindow(nCmdShow);
zwnd1.UpdateWindow(); while (GetMessage(&msg, NULL, 0, 0))
{
DispatchMessage(&msg);
}
return msg.wParam;}
仿照atl,结果有错,请教为什么?谢谢了。。
#pragma pack(push,1)
struct _WndProcThunk
{
DWORD m_mov; // mov dword ptr [esp+0x4], pThis (esp+0x4 is hWnd)
DWORD m_this;
BYTE m_jmp; // jmp WndProc
DWORD m_relproc; // 相对jmp
};
#pragma pack(pop)//typedef void(*WNDPROC)();class ZWindow
{
public:
HWND m_hWnd; _WndProcThunk thunk; //ZWindow(HWND hWnd = 0) : m_hWnd(hWnd) { }
void Init(WNDPROC proc, void* pThis)
{
thunk.m_mov = 0x042444C7; //C7 44 24 04
thunk.m_this = (DWORD)pThis;
thunk.m_jmp = 0xe9;
thunk.m_relproc = (int)proc - ((int)this+sizeof(_WndProcThunk)); FlushInstructionCache(GetCurrentProcess(), &thunk, sizeof(thunk));
} inline BOOL ShowWindow(int nCmdShow)
{ return ::ShowWindow(m_hWnd, nCmdShow); } inline BOOL UpdateWindow()
{ return ::UpdateWindow(m_hWnd); } inline HDC BeginPaint(LPPAINTSTRUCT ps)
{ return ::BeginPaint(m_hWnd, ps); } inline BOOL EndPaint(LPPAINTSTRUCT ps)
{ return ::EndPaint(m_hWnd, ps); } inline BOOL GetClientRect(LPRECT rect)
{ return ::GetClientRect(m_hWnd, rect); }
BOOL Create(LPCTSTR szClassName, LPCTSTR szTitle, HINSTANCE hInstance,
HWND hWndParent = 0, DWORD dwStyle = WS_OVERLAPPEDWINDOW,
DWORD dwExStyle = 0, HMENU hMenu = 0, int x = CW_USEDEFAULT,
int y = CW_USEDEFAULT, int nWidth = CW_USEDEFAULT,
int nHeight = CW_USEDEFAULT)
{
m_hWnd = ::CreateWindowEx(dwExStyle, szClassName, szTitle, dwStyle,
x, y, nWidth, nHeight, hWndParent, hMenu,
hInstance, NULL);
return m_hWnd != NULL;
} virtual LRESULT OnPaint(WPARAM wParam, LPARAM lParam)
{
HDC hDC;
PAINTSTRUCT ps;
RECT rect; hDC = BeginPaint(&ps);
GetClientRect(&rect);
::DrawText(hDC, "Hello world", -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint(&ps);
return 0;
} virtual LRESULT OnLButtonDown(WPARAM wParam, LPARAM lParam)
{
return 0;
} virtual LRESULT OnCreate(WPARAM wParam, LPARAM lParam)
{
return 0;
} virtual LRESULT OnKeyDown(WPARAM wParam, LPARAM lParam)
{
return 0;
} static LRESULT CALLBACK StartWndProc(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
ZWindow* pThis = g_pWnd ;
pThis->m_hWnd = hWnd;
pThis->Init(WindowProc, pThis);
WNDPROC pProc = (WNDPROC)&(pThis->thunk);
WNDPROC pOldProc = (WNDPROC)::SetWindowLong(hWnd, GWL_WNDPROC, (LONG)pProc);
return pProc(hWnd, uMsg, wParam, lParam); }
static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{ ZWindow* pThis = (ZWindow*)hWnd;
pThis->ProcessWindowMessage(pThis->m_hWnd, uMsg, wParam, lParam) ;
return 0;
}
BOOL ProcessWindowMessage(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
if (uMsg == WM_NCDESTROY)
::PostQuitMessage(0); switch (uMsg)
{
case WM_CREATE:
OnCreate(wParam, lParam);
break; case WM_PAINT:
OnPaint(wParam, lParam);
break; case WM_LBUTTONDOWN:
OnLButtonDown(wParam, lParam);
break; case WM_KEYDOWN:
OnKeyDown(wParam, lParam);
break; case WM_DESTROY:
::PostQuitMessage(0);
break;
} return ::DefWindowProc(hWnd, uMsg, wParam, lParam); }
};class ZDriveWindow1 : public ZWindow
{
public:
LRESULT OnPaint(WPARAM wParam, LPARAM lParam)
{
HDC hDC;
PAINTSTRUCT ps;
RECT rect; hDC = BeginPaint(&ps);
GetClientRect(&rect);
::SetBkMode(hDC, TRANSPARENT);
::DrawText(hDC, "ZDriveWindow1", -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint(&ps); return 0;
} LRESULT OnLButtonDown(WPARAM wParam, LPARAM lParam)
{
::MessageBox(NULL, "ZDriveWindow1::OnLButtonDown", "Msg", MB_OK);
return 0;
}}; int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
char szAppName[] = "Hello world";
MSG msg;
WNDCLASS wnd;
ZDriveWindow1 zwnd1;
wnd.cbClsExtra = NULL;
wnd.cbWndExtra = NULL;
wnd.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
wnd.hCursor = LoadCursor(NULL, IDC_ARROW);
wnd.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wnd.hInstance = hInstance;
wnd.lpfnWndProc = ZWindow::StartWndProc;
wnd.lpszClassName = szAppName;
wnd.lpszMenuName = NULL;
wnd.style = CS_HREDRAW | CS_VREDRAW;
if (!RegisterClass(&wnd))
{
MessageBox(NULL, "Can not register window class", "Error",
MB_OK | MB_ICONINFORMATION);
return -1;
} g_pWnd = &zwnd1;
zwnd1.Create(szAppName, "Hell world", hInstance); zwnd1.ShowWindow(nCmdShow);
zwnd1.UpdateWindow(); while (GetMessage(&msg, NULL, 0, 0))
{
DispatchMessage(&msg);
}
return msg.wParam;}
仿照atl,结果有错,请教为什么?谢谢了。。
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