SetClassLong(hText, GWL_WNDPROC, (DWORD)lpfnOldWndProc);
DestroyWindow(hText);

DWORD err = GetLastError();
	if (err){
		char buf[ 1024 ];
		FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM,  0 , err,  0 , buf,  1024 ,  0 );
		MessageBoxA( 0 , buf, "Caption", MB_OK|MB_SETFOREGROUND);
	}

#include <windows.h>

#define WNDCLASSNAME TEXT("WinMin")
#define WNDCAPTION TEXT("WinMin")

static bool g_bRunning = true;

LRESULT WINAPI WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam){
	switch(Msg){
		case (WM_DESTROY):{
			g_bRunning = false;
			PostQuitMessage( 0 );
			return  0 ;
		}
        default:
            return DefWindowProc(hWnd, Msg, wParam, lParam);
	}
}

WNDPROC oldFunc =  0 ;
LRESULT WINAPI subClassFunc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam){
	if (Msg == WM_RBUTTONDOWN)
		MessageBox ( 0 , TEXT("WM_RBUTTONDOWN"), TEXT("info"), MB_OK|MB_SETFOREGROUND);
	return CallWindowProc(oldFunc, hWnd, Msg, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInst, HINSTANCE, LPSTR, int){
    WNDCLASS wc = {
        CS_VREDRAW|CS_HREDRAW,
        WndProc,  0 ,  0 ,
        hInst,
        LoadIcon( 0 , IDI_APPLICATION),
        LoadCursor( 0 , IDC_ARROW),
        (HBRUSH)GetStockObject(LTGRAY_BRUSH),
         0 ,
        WNDCLASSNAME
    };

    RegisterClass(&wc);

    HWND hWnd = 
    CreateWindow(
                                WNDCLASSNAME,
                                WNDCAPTION, 
                                WS_OVERLAPPEDWINDOW,
                                CW_USEDEFAULT,
                                CW_USEDEFAULT,
                                CW_USEDEFAULT,
                                CW_USEDEFAULT,
                                 0 ,  0 , hInst,  0 
                                );

	HWND hEditWnd = CreateWindow(TEXT("EDIT"), TEXT("Edit test"), WS_CHILD|ES_LEFT|WS_BORDER/*|WS_VISIBLE*/,  0 ,  0 ,  150 ,  30 , hWnd,  0 , hInst,  0 );
	//oldFunc = (WNDPROC) SetWindowLong(hEditWnd, GWL_WNDPROC, (DWORD)&subClassFunc);
	oldFunc = (WNDPROC) SetClassLong(hEditWnd, GCL_WNDPROC, (DWORD)&subClassFunc);
	DestroyWindow(hEditWnd);
	hEditWnd = CreateWindow(TEXT("EDIT"), TEXT("Edit test"), WS_CHILD|ES_LEFT|WS_BORDER/*|WS_VISIBLE*/,  0 ,  0 ,  150 ,  30 , hWnd,  0 , hInst,  0 );
	
	DWORD err = GetLastError();
	if (err){
		TCHAR buf[ 1024 ];
		FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,  0 , err,  0 , buf,  1024 ,  0 );
		MessageBox( 0 , buf, TEXT("Caption"), MB_OK|MB_SETFOREGROUND);
	}
	ShowWindow(hEditWnd, SW_SHOW);
	
    UpdateWindow(hWnd);
    ShowWindow(hWnd, SW_SHOW);

    MSG msg;
    while (g_bRunning){
        if (PeekMessage(&msg, hWnd,  0 ,  0 , PM_REMOVE)){
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else{
            //idle
        }
    }

    UnregisterClass(WNDCLASSNAME, hInst);

    return  0 ;
}

WNDPROC oldFunc =  0 ;
LRESULT WINAPI subClassFunc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam){
	if (Msg == WM_RBUTTONDOWN)
		return  0 ;
	else
		return CallWindowProc(oldFunc, hWnd, Msg, wParam, lParam);
}