Bonjour pour les Développeurs...

Aprés la création de ma fenetre principale ainsi que les boutons, je trouve une difficulté pour crée une fenetre fille de telle facon lors d'un clique sur une bouton elle affiche une autre fenetre(cad fenetre fille) et ainsi de suite..

L'Environnement est windows, compilateur Dev C++, language C.

Mon code est:

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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#LRESULT CALLBACK MainWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    static HFONT hFont;
    static LOGFONT lf;
    static BOOL EditNotChg = TRUE;        
    static HBRUSH EditBrush;
    static COLORREF BkEditcolor;
    static COLORREF TextColor = 0;
 
	static HWND hEdit;	
	static HWND hbtn1;
	static HWND hbtn2;
	static HWND hbtn3;
	static HWND hbtn4;
	static HWND hbtn5;
	static HWND hbtn6;
	static HWND hbtn7;
	static HWND hbtn8;
	static HWND hbtn9;
	static HWND hbtn10;
	static HWND hbtn11;
	static HWND hbtn12;
	static HWND hbtn13;
 
 
	switch (uMsg)
	{
	case WM_CREATE:
		{
			HFONT hFont;
			hEdit = CreateWindow("edit", "Texte",
			 WS_CHILD | WS_VISIBLE | ES_MULTILINE | ES_WANTRETURN | WS_VSCROLL,
			 40,40, 0, 0, hwnd, NULL, NULL, NULL
			 );
			/*permet de récupérer des objets initialisés au démarrage de Windows, tel des pinceaux, crayons..*/
			hFont = GetStockObject(ANSI_FIXED_FONT);/*changer le police de caractère*/
			SendMessage(hEdit,WM_SETFONT,(UINT)hFont,TRUE);/*mêmes paramètres que PostMessage et dans le même ordre//envoie le message directement à la procédure de fenêtre sans passer par la file d'attente*/
 
 
             ZeroMemory(&lf, sizeof(LOGFONT));
             lstrcpy(lf.lfFaceName,"Courier");
             lf.lfHeight = 10;
             hFont = CreateFontIndirect(&lf);
 
 
             SendMessage(hEdit,WM_SETFONT,(UINT)hFont,TRUE);
             SendMessage(hEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN,
                                                                MAKELONG(5, 5));
    	}
 
         SendMessage(hEdit, EM_SETMARGINS,
		 EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(5, 5)
		 );/*pour mettre ses marges interieures droite et gauche à 5 pixels*/
 
         //EXEC SQL CONNECT TO spernet [AS nom_connexion] [USER utilisateur];
 
    	hbtn1 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE|ES_WANTRETURN | ES_MULTILINE   ,
	    3,285, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn2 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
	    103,285, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn3 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		203,285, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn4 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
        303,285, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn5 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
	    403,285, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn6 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
	    503,285, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn7 = CreateWindow("button", "Login", WS_CHILD | WS_VISIBLE ,
		3,3, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn8 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		3,52, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn9 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		3,87, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn10 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		3,122, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn11 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		3,157, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn12 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		3,192, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		hbtn13 = CreateWindow("button", "-----", WS_CHILD | WS_VISIBLE ,
		3,227, 100, 35, hwnd, (HMENU)ID_MONBUTTON, NULL, NULL);
		return 0;
            // IDM_ABOUT
	        case WM_COMMAND:
	        	if(LOWORD(wParam)== IDM_OPEN)
	         	{
                 OPENFILENAME ofn;
                 CHAR szFile[MAX_PATH]={0};
 
                   ZeroMemory(&ofn, sizeof(OPENFILENAME));
                     ofn.lStructSize = sizeof(OPENFILENAME);
                       ofn.hwndOwner = hwnd;
                        ofn.lpstrFile = szFile;
                         ofn.nMaxFile = MAX_PATH;
                          ofn.lpstrFilter =
                           "Fichier texte\0*.txt\0Fichier Word 2003\0*.doc\0Fichier Word 2007\0*.docx\0";
                ofn.nFilterIndex = 1;
                ofn.Flags =OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
 
                           if (GetOpenFileName(&ofn)==TRUE)
                              {
                                HANDLE hf;
                                  DWORD FileSize,nbcharRead ;
                                   CHAR *buffer;
 
                                    hf = CreateFile(szFile, GENERIC_READ, 0,NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
                                     FileSize = GetFileSize(hf, NULL);
                                     buffer = (PCHAR)LocalAlloc(LMEM_FIXED, FileSize+1);
                                     ReadFile(hf, buffer, FileSize, &nbcharRead, NULL) ;
                                     buffer[FileSize] = 0;
                                       SendMessage(hEdit, WM_SETTEXT, 0, (LPARAM)buffer);
                                         LocalFree(buffer);
                                           CloseHandle(hf);
                               }
                  }
 
                  if(LOWORD(wParam) == IDM_SAVE)
              {
                OPENFILENAME ofn;
                CHAR szFile[260]={0};
 
                ZeroMemory(&ofn, sizeof(OPENFILENAME));
#ifdef OPENFILENAME_SIZE_VERSION_400
                ofn.lStructSize = OPENFILENAME_SIZE_VERSION_400;
#else
                ofn.lStructSize = sizeof(OPENFILENAME);
#endif
                ofn.hwndOwner = hwnd;
                ofn.lpstrFile = szFile;
                ofn.nMaxFile = sizeof(szFile);
                ofn.lpstrFilter =
                           "Fichier texte\0*.txt\0Fichier Word 2003\0*.doc\0Fichier Word 2007\0*.docx\0";
                ofn.nFilterIndex = 1;
                ofn.Flags =
                       OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;
                if (GetSaveFileName(&ofn)==TRUE)
                 {
                    HANDLE hf;
                    DWORD FileSize,nbcharRead ;
                    char *buffer;
                    FileSize = GetWindowTextLength(hEdit);
                    buffer = (char*)LocalAlloc(LMEM_FIXED, FileSize+1);
                    GetWindowText(hEdit, buffer, FileSize+1);
                    hf = CreateFile(szFile, GENERIC_WRITE, 0,NULL,
                                    CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
                    WriteFile(hf, buffer, FileSize, &nbcharRead, NULL) ;
                    CloseHandle(hf);
                    LocalFree(buffer);
                 }
              } 
 
                  /////// IDM_ABOUT  ////////
        if(LOWORD(wParam) == IDM_ABOUT)
        MessageBox(hwnd,"Supernet... C'est La solution de votre société!!","C'est Notre Societé!!",MB_OK);
 
 
    	if(HIWORD(wParam) == EN_CHANGE) EditNotChg = FALSE;
 
		return 0;
 
                 /////// Police Change  ////////
        if(LOWORD(wParam) == IDM_FONT)
              {
                CHOOSEFONT cf;
                ZeroMemory(&cf, sizeof(CHOOSEFONT));
                cf.lStructSize = sizeof (CHOOSEFONT);
                cf.hwndOwner = hwnd;
                cf.lpLogFont = &lf;
                cf.Flags = CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT;
 
                if (ChooseFont(&cf))
                 {
                    DeleteObject(hFont);
                    hFont = CreateFontIndirect(&lf);
                    SendMessage(hEdit,WM_SETFONT,(UINT)hFont,TRUE);
                 }
              }
 
 
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
 
	default:
		return DefWindowProc(hwnd, uMsg, wParam, lParam);
	}
}
Merci..