Ciao ragazzi, questo codice funziona eccetto che la prgress bar non è verde....come quelle che si vedono di solito.....lo stesso problema l'ho riscontrato nella classe Button.....perfavore aiutatemi

codice:
// SetWindowTheme.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "SetWindowTheme.h"
#include <windows.h>
#include <CommCtrl.h>
#pragma comment(lib,"Comctl32.lib")

#include <tchar.h>
#include <Uxtheme.h>
#pragma comment(lib,"UxTheme.lib")

/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);


/*  Make the class name into a global variable  */
char szClassName[ ] = "WindowsApp";
HINSTANCE hinst; 
int WINAPI WinMain (HINSTANCE hThisInstance,
                    HINSTANCE hPrevInstance,
                    LPSTR lpszArgument,
                    int nFunsterStil)

{
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved */
    WNDCLASSEX wincl;        /* Data structure for the windowclass */
    hinst = hThisInstance;
    
    /* The Window structure */
    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
    wincl.cbSize = sizeof (WNDCLASSEX);

    /* Use default icon and mouse-pointer */
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;                 /* No menu */
    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
    wincl.cbWndExtra = 0;                      /* structure or the window instance */
    /* Use Windows's default color as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

    /* Register the window class, and if it fails quit the program */
    if (!RegisterClassEx (&wincl))
        return 0;

    /* The class is registered, let's create the program*/
    hwnd = CreateWindowEx (
           0,                   /* Extended possibilites for variation */
           szClassName,         /* Classname */
           "Windows App",       /* Title Text */
           WS_OVERLAPPEDWINDOW, /* default window */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window ends up on the screen */
           544,                 /* The programs width */
           375,                 /* and height in pixels */
           HWND_DESKTOP,        /* The window is a child-window to desktop */
           NULL,                /* No menu */
           hThisInstance,       /* Program Instance handler */
           NULL                 /* No Window Creation data */
           );
    
    /* Make the window visible on the screen */
    ShowWindow (hwnd, nFunsterStil);
    
    /* Run the message loop. It will run until GetMessage() returns 0 */
    while (GetMessage (&messages, NULL, 0, 0))
    {
        /* Translate virtual-key messages into character messages */
        TranslateMessage(&messages);
        /* Send message to WindowProcedure */
        DispatchMessage(&messages);
    }

    /* The program return-value is 0 - The value that PostQuitMessage() gave */
    return messages.wParam;
}


/*  This function is called by the Windows function DispatchMessage()  */

LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static RECT rcClient;  // Client area of parent window 
static int cyVScroll;  // Height of scroll bar arrow    
static HWND hwndPB;

    switch (message)                  /* handle the messages */
    {
        case WM_CREATE:
        
             SetTimer(hwnd,10,0,0);
             InitCommonControls(); 
             

             GetClientRect(hwnd, &rcClient); 
             cyVScroll = GetSystemMetrics(SM_CYVSCROLL); 

             hwndPB = CreateWindowEx(0, PROGRESS_CLASS,(LPTSTR) NULL, WS_CHILD | WS_VISIBLE,
             rcClient.left, rcClient.bottom - cyVScroll, rcClient.right, cyVScroll, 
             hwnd, (HMENU) 0, hinst, NULL);
			 SetWindowTheme(hwndPB, L"explorer", NULL);
             SendMessage(hwndPB, PBM_SETRANGE, 0,MAKELPARAM(0, 180)); 
             SendMessage(hwndPB, PBM_SETSTEP, (WPARAM) 1, 0); 

             break;
             
        case WM_DESTROY:
            DestroyWindow(hwndPB);
            PostQuitMessage (0);       /* send a WM_QUIT to the message queue */
            break;
        case WM_TIMER:
             SendMessage(hwndPB, PBM_STEPIT, 0, 0);
             SetTimer(hwnd,10,0,0);
             break;
        default:                      /* for messages that we don't deal with */
            return DefWindowProc (hwnd, message, wParam, lParam);
    }

    return 0;
}