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6.2

Window CreateWindow() in DllMain()

Asked by biswabiet in Windows MFC Programming, Windows 3.x Setup, Open Source Programming

Hi if anybody can help me on this
i need my DLLMain should work like a Winmain().
i need all the controll in the DLL . if any aplication loads the DLL , the DLL shoul self sufficinet to create the window and able handle the event in a thread.
i am failing in CreateWindow() getting 1407 in getlasterrro().
find the code
thanks

Get your answer NOW

         
           
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             #include "stdafx.h"
#include "windows.h"
#include "stdio.h"
#include "resource.h"
 
 
#define MAX_LOADSTRING	100
 
HINSTANCE hInst;								// current instance
TCHAR szTitle[MAX_LOADSTRING];								// The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;
	TCHAR szHello[MAX_LOADSTRING];
	LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
 
	switch (message) 
	{
		case WM_CREATE:
			MessageBox(hWnd, "test", "test", MB_OK);
			MessageBox(NULL, "test1", "test", MB_OK);
			break;	
		case WM_COMMAND:
			wmId    = LOWORD(wParam); 
			wmEvent = HIWORD(wParam); 
			// Parse the menu selections:
			switch (wmId)
			{
				case IDM_ABOUT:
//				   DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
				   break;
				case IDM_EXIT:
				   DestroyWindow(hWnd);
				   break;
				default:
				   return DefWindowProc(hWnd, message, wParam, lParam);
			}
			break;
		case WM_PAINT:
			hdc = BeginPaint(hWnd, &ps);
			// TODO: Add any drawing code here...
			RECT rt;
			GetClientRect(hWnd, &rt);
			DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
			EndPaint(hWnd, &ps);
			break;
		case WM_DESTROY:
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}
 
// Mesage handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_INITDIALOG:
				return TRUE;
 
		case WM_COMMAND:
			if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) 
			{
				EndDialog(hDlg, LOWORD(wParam));
				return TRUE;
			}
			break;
	}
    return FALSE;
}
 
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;
 
	wcex.cbSize = sizeof(WNDCLASSEX); 
 
	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= (WNDPROC)WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, (LPCTSTR)IDI_VISALI);
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= (LPCSTR)IDC_VISALI;
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
 
	return RegisterClassEx(&wcex);
}
 
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
 HWND hWnd;
   int ret;
   char buf[100];
 
   hInst = hInstance; // Store instance handle in our global variable
 
   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
   ret = GetLastError();
 
   sprintf(buf,"ret = %d",ret);
   MessageBox(NULL, buf, "ret", MB_OK);
 
   if (!hWnd)
   {
      MessageBox(NULL, "After register", "3", MB_OK);
	   return FALSE;
   }
 
   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);
 
   return TRUE;
}
 
int __stdcall Fun()
{
	MessageBox(NULL, "Fun", "Fun", MB_OK)
 
	return 1;
}
 
BOOL APIENTRY DllMain( HINSTANCE hInstance, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
					 )
{
SG msg;
	HACCEL hAccelTable;
	int       nCmdShow =1;
		// Initialize global strings
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_VISALI, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);
 
	// Perform application initialization:
	if (!InitInstance (hInstance, nCmdShow)) 
	{
		return FALSE;
	}
 
	hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_VISALI);
 
	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}
 
	return msg.wParam;
}

           
         

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Window CreateWindow() in DllMain()

Asked by biswabiet in Windows MFC Programming, Windows 3.x Setup, Open Source Programming

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