C / C++ / MFC

void main()<br />
{<br />
	HWND hwnd = FindWindowEx(0,0,"Shell_TrayWnd",0);<br />
	hwnd = FindWindowEx(hwnd , 0 ,"TrayNotifyWnd",0);<br />
	hwnd = FindWindowEx(hwnd , 0 ,"SysPager",0);<br />
	hwnd = FindWindowEx(hwnd , 0 ,0,"Notification Area");<br />
<br />
	int index = 0;<br />
	int count = (int)::SendMessage(hwnd, TB_BUTTONCOUNT, 0, 0);<br />
	for(int i=0; i<count; i++)<br />
	{		<br />
		char text[1024];<br />
		int strLen = ::SendMessage(hwnd, TB_GETBUTTONTEXT, i, (LPARAM)text);	<br />
	}<br />
<br />
	BOOL b = ::SendMessage(hwnd, TB_HIDEBUTTON, 0, 1);	<br />
	b = ::SendMessage(hwnd, TB_AUTOSIZE, 0, 0);	<br />
}

HWND hTray = ::FindWindow(L"Shell_TrayWnd", NULL);<br />
HWND  hStart = ::FindWindowEx( hTray, NULL, L"Button", NULL);<br />
SendMessage(hStart, WM_SETTEXT, 0, (LPARAM)L"MyText");

CBitmap bg_Image;			// create Image
bg_Image.LoadBitmap(IDB_BITMAP1);	// load from resource

BITMAP bBitmap;
bg_Image.GetBitmap(&bBitmap);		// load bitmap data

BYTE *pBuffer = new BYTE[bBitmap.bmWidth * bBitmap.bmHeight];

bg_Image.GetBitmapBits(bBitmap.bmHeight*bBitmap.bmWidth, pBuffer);

CRgn    newRegion;			// new region for dialog
newRegion.CreateRectRgn(0,0,0,0);	// creat empty region

CRgn	tmpRgn;				// temporary region
for (int y=1; y< bBitmap.bmHeight; ++y)
{
	for (int x=1; x < bBitmap.bmWidth; ++x)
	{
		BYTE c = pBuffer[(y)*bBitmap.bmWidth + x];
		if (c == 255)				// white
		{
			tmpRgn.DeleteObject();		// clear out region
			tmpRgn.CreateRectRgn(x,y,x+1,y+1);
			newRegion.CombineRgn(&newRegion, &tmpRgn, RGN_OR);
		}

	}
}
this->SetWindowRgn(newRegion, true);

delete [] pBuffer;