Win32 CreateDialogParam Problem

See more:

C++

Hi,
I have C++ dll that using by another software. I need when software call one function of this dll , it shows one Dialog for get user/pwd. My code before worked but in this time not works.

INT_PTR CALLBACK DialogFunc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
		g_hInstance = hModule;
		bRun = FALSE;
		dwNewLong = 0;
		g_Msg = RegisterWindowMessageA("MetaTrader4_Internal_Message");
		g_hWnd = FindWindowA("TForm1", "Form1");
	case DLL_PROCESS_ATTACH:
	case DLL_THREAD_ATTACH:
	case DLL_THREAD_DETACH:
	case DLL_PROCESS_DETACH:
		break;
	}
	return TRUE;
}

HWND hWnd1;
int nRet;


char b1[]="VALID";


HWND g_hDlg2,hWnd,hDlg2,hDlg3;
INT_PTR CALLBACK DialogFunc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
{

	
	switch(uMsg)
	{
	case WM_INITDIALOG:
		
		read(f1);
		read1(f2);
			
		hDlg1=GetDlgItem(hDlg,IDC_EDIT1);
		SetWindowTextA(hDlg1,UserSaved);
		hDlg2=GetDlgItem(hDlg,IDC_EDIT2);
		SetWindowTextA(hDlg2,PWDSaved);
		break;
	case WM_COMMAND:
		switch(LOWORD(wParam))
		{
		case IDC_BUTTON2:
			
			hDlg3=hDlg;
			
			GetWindowText(hDlg1,username,1024);
			
			write(f1);
			
			GetWindowText(hDlg2,key,1024);
			write1(f2);
			if(memcmp(Get_Account_Number_FromWEB(),b1,sizeof(b1))==0 ){result=1; DestroyWindow(hDlg);}
			else MessageBox(0,TEXT("Wrong User or PWD"),0,0);
		  
			break;
			case IDC_BUTTON3:
				DestroyWindow(hDlg);
				break;
				case IDC_EDIT1:
		         break;
			case IDC_EDIT2:
              break;

		}
		break;
	case WM_CLOSE:
		SetWindowLongA(hDlg, GWL_WNDPROC, dwNewLong);
		DestroyWindow(hDlg);
		return TRUE;
		break;
	}
	return FALSE;
}
int aa=0;
HWND hWnd2;
int dd;
HWND hDlg;
MT4_EXPFUNC int __stdcall INITIAL(HWND hWnd)
{
	 
	MSG msg; 
	BOOL msgstatus;

	 if(aa==0){
	hDlg = CreateDialogParamA(g_hInstance, MAKEINTRESOURCE(IDD_DIALOG1 ), hWnd, DialogFunc, 0);
     SetWindowPos( hDlg, HWND_TOPMOST,0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | WS_EX_TOPMOST );
	 ShowWindow(hDlg, SW_SHOW);
	
	aa=1;
	}

	

	dd=result;
	hWnd2=hWnd;
	
	return	result;
}

I added resource to dll too and compile without problem. but when call this function it not works and not shows dialog box.
Any bug in my code?
Regards,