btnst.cpp

检测USB设备的PID和UID等信息

				byNewPixel = (BYTE)((GetRValue(crPixel) * 0.299) + (GetGValue(crPixel) * 0.587) + (GetBValue(crPixel) * 0.114));

				if (crPixel != crTrans)
					::SetPixel(hMemDC1, dwLoopX, dwLoopY, RGB(byNewPixel, byNewPixel, byNewPixel));
				else
					::SetPixel(hMemDC1, dwLoopX, dwLoopY, crPixel);
			} // for
		} // for

		::SelectObject(hMemDC1, hOldBmp1);
		::SelectObject(hMemDC2, hOldBmp2);
	} // if

	::DeleteDC(hMemDC1);
	::DeleteDC(hMemDC2);
	::ReleaseDC(NULL, hMainDC);

	return hGrayBitmap;
} // End of CreateGrayscaleBitmap

// This function creates a bitmap that is 25% darker than the original.
// The resulting bitmap will have the same size of the original one.
//
// Parameters:
//		[IN]	hBitmap
//				Handle to the original bitmap.
//		[IN]	dwWidth
//				Specifies the bitmap width, in pixels.
//		[IN]	dwHeight
//				Specifies the bitmap height, in pixels.
//		[IN]	crTrans
//				Color to be used as transparent color. This color will be left unchanged.
//
// Return value:
//		If the function succeeds, the return value is the handle to the newly created
//		darker bitmap.
//		If the function fails, the return value is NULL.
//
HBITMAP CButtonST::CreateDarkerBitmap(HBITMAP hBitmap, DWORD dwWidth, DWORD dwHeight, COLORREF crTrans)
{
	HBITMAP		hGrayBitmap = NULL;
	HDC			hMainDC = NULL, hMemDC1 = NULL, hMemDC2 = NULL;
	HBITMAP		hOldBmp1 = NULL, hOldBmp2 = NULL;

	hMainDC = ::GetDC(NULL);
	if (hMainDC == NULL)	return NULL;
	hMemDC1 = ::CreateCompatibleDC(hMainDC);
	if (hMemDC1 == NULL)
	{
		::ReleaseDC(NULL, hMainDC);
		return NULL;
	} // if
	hMemDC2 = ::CreateCompatibleDC(hMainDC);
	if (hMemDC2 == NULL)
	{
		::DeleteDC(hMemDC1);
		::ReleaseDC(NULL, hMainDC);
		return NULL;
	} // if

	hGrayBitmap = ::CreateCompatibleBitmap(hMainDC, dwWidth, dwHeight);
	if (hGrayBitmap)
	{
		hOldBmp1 = (HBITMAP)::SelectObject(hMemDC1, hGrayBitmap);
		hOldBmp2 = (HBITMAP)::SelectObject(hMemDC2, hBitmap);

		//::BitBlt(hMemDC1, 0, 0, dwWidth, dwHeight, hMemDC2, 0, 0, SRCCOPY);

		DWORD		dwLoopY = 0, dwLoopX = 0;
		COLORREF	crPixel = 0;

		for (dwLoopY = 0; dwLoopY < dwHeight; dwLoopY++)
		{
			for (dwLoopX = 0; dwLoopX < dwWidth; dwLoopX++)
			{
				crPixel = ::GetPixel(hMemDC2, dwLoopX, dwLoopY);

				if (crPixel != crTrans)
					::SetPixel(hMemDC1, dwLoopX, dwLoopY, DarkenColor(crPixel, 0.25));
				else
					::SetPixel(hMemDC1, dwLoopX, dwLoopY, crPixel);
			} // for
		} // for

		::SelectObject(hMemDC1, hOldBmp1);
		::SelectObject(hMemDC2, hOldBmp2);
	} // if

	::DeleteDC(hMemDC1);
	::DeleteDC(hMemDC2);
	::ReleaseDC(NULL, hMainDC);

	return hGrayBitmap;
} // End of CreateDarkerBitmap

// This function creates a grayscale icon starting from a given icon.
// The resulting icon will have the same size of the original one.
//
// Parameters:
//		[IN]	hIcon
//				Handle to the original icon.
//
// Return value:
//		If the function succeeds, the return value is the handle to the newly created
//		grayscale icon.
//		If the function fails, the return value is NULL.
//
// Updates:
//		26/Nov/2002	Restored 1 BitBlt operation
//		03/May/2002	Removed dependancy from m_hWnd
//					Removed 1 BitBlt operation
//
HICON CButtonST::CreateGrayscaleIcon(HICON hIcon)
{
	HICON		hGrayIcon = NULL;
	HDC			hMainDC = NULL, hMemDC1 = NULL, hMemDC2 = NULL;
	BITMAP		bmp;
	HBITMAP		hOldBmp1 = NULL, hOldBmp2 = NULL;
	ICONINFO	csII, csGrayII;
	BOOL		bRetValue = FALSE;

	bRetValue = ::GetIconInfo(hIcon, &csII);
	if (bRetValue == FALSE)	return NULL;

	hMainDC = ::GetDC(NULL);
	hMemDC1 = ::CreateCompatibleDC(hMainDC);
	hMemDC2 = ::CreateCompatibleDC(hMainDC);
	if (hMainDC == NULL || hMemDC1 == NULL || hMemDC2 == NULL)	return NULL;
  
	if (::GetObject(csII.hbmColor, sizeof(BITMAP), &bmp))
	{
		DWORD	dwWidth = csII.xHotspot*2;
		DWORD	dwHeight = csII.yHotspot*2;

		csGrayII.hbmColor = ::CreateBitmap(dwWidth, dwHeight, bmp.bmPlanes, bmp.bmBitsPixel, NULL);
		if (csGrayII.hbmColor)
		{
			hOldBmp1 = (HBITMAP)::SelectObject(hMemDC1, csII.hbmColor);
			hOldBmp2 = (HBITMAP)::SelectObject(hMemDC2, csGrayII.hbmColor);

			//::BitBlt(hMemDC2, 0, 0, dwWidth, dwHeight, hMemDC1, 0, 0, SRCCOPY);

			DWORD		dwLoopY = 0, dwLoopX = 0;
			COLORREF	crPixel = 0;
			BYTE		byNewPixel = 0;

			for (dwLoopY = 0; dwLoopY < dwHeight; dwLoopY++)
			{
				for (dwLoopX = 0; dwLoopX < dwWidth; dwLoopX++)
				{
					crPixel = ::GetPixel(hMemDC1, dwLoopX, dwLoopY);
					byNewPixel = (BYTE)((GetRValue(crPixel) * 0.299) + (GetGValue(crPixel) * 0.587) + (GetBValue(crPixel) * 0.114));

					if (crPixel)	
						::SetPixel(hMemDC2, dwLoopX, dwLoopY, RGB(byNewPixel, byNewPixel, byNewPixel));
					else
						::SetPixel(hMemDC2, dwLoopX, dwLoopY, crPixel);
				} // for
			} // for

			::SelectObject(hMemDC1, hOldBmp1);
			::SelectObject(hMemDC2, hOldBmp2);

			csGrayII.hbmMask = csII.hbmMask;

			csGrayII.fIcon = TRUE;
			hGrayIcon = ::CreateIconIndirect(&csGrayII);
		} // if

		::DeleteObject(csGrayII.hbmColor);
		//::DeleteObject(csGrayII.hbmMask);
	} // if

	::DeleteObject(csII.hbmColor);
	::DeleteObject(csII.hbmMask);
	::DeleteDC(hMemDC1);
	::DeleteDC(hMemDC2);
	::ReleaseDC(NULL, hMainDC);

	return hGrayIcon;
} // End of CreateGrayscaleIcon

// This function creates a icon that is 25% darker than the original.
// The resulting icon will have the same size of the original one.
//
// Parameters:
//		[IN]	hIcon
//				Handle to the original icon.
//
// Return value:
//		If the function succeeds, the return value is the handle to the newly created
//		darker icon.
//		If the function fails, the return value is NULL.
//
HICON CButtonST::CreateDarkerIcon(HICON hIcon)
{
	HICON		hGrayIcon = NULL;
	HDC			hMainDC = NULL, hMemDC1 = NULL, hMemDC2 = NULL;
	BITMAP		bmp;
	HBITMAP		hOldBmp1 = NULL, hOldBmp2 = NULL;
	ICONINFO	csII, csGrayII;
	BOOL		bRetValue = FALSE;

	bRetValue = ::GetIconInfo(hIcon, &csII);
	if (bRetValue == FALSE)	return NULL;

	hMainDC = ::GetDC(NULL);
	hMemDC1 = ::CreateCompatibleDC(hMainDC);
	hMemDC2 = ::CreateCompatibleDC(hMainDC);
	if (hMainDC == NULL || hMemDC1 == NULL || hMemDC2 == NULL)	return NULL;
  
	if (::GetObject(csII.hbmColor, sizeof(BITMAP), &bmp))
	{
		DWORD	dwWidth = csII.xHotspot*2;
		DWORD	dwHeight = csII.yHotspot*2;

		csGrayII.hbmColor = ::CreateBitmap(dwWidth, dwHeight, bmp.bmPlanes, bmp.bmBitsPixel, NULL);
		if (csGrayII.hbmColor)
		{
			hOldBmp1 = (HBITMAP)::SelectObject(hMemDC1, csII.hbmColor);
			hOldBmp2 = (HBITMAP)::SelectObject(hMemDC2, csGrayII.hbmColor);

			//::BitBlt(hMemDC2, 0, 0, dwWidth, dwHeight, hMemDC1, 0, 0, SRCCOPY);

			DWORD		dwLoopY = 0, dwLoopX = 0;
			COLORREF	crPixel = 0;

			for (dwLoopY = 0; dwLoopY < dwHeight; dwLoopY++)
			{
				for (dwLoopX = 0; dwLoopX < dwWidth; dwLoopX++)
				{
					crPixel = ::GetPixel(hMemDC1, dwLoopX, dwLoopY);

					if (crPixel)	
						::SetPixel(hMemDC2, dwLoopX, dwLoopY, DarkenColor(crPixel, 0.25));
					else
						::SetPixel(hMemDC2, dwLoopX, dwLoopY, crPixel);
				} // for
			} // for

			::SelectObject(hMemDC1, hOldBmp1);
			::SelectObject(hMemDC2, hOldBmp2);

			csGrayII.hbmMask = csII.hbmMask;

			csGrayII.fIcon = TRUE;
			hGrayIcon = ::CreateIconIndirect(&csGrayII);
		} // if

		::DeleteObject(csGrayII.hbmColor);
		//::DeleteObject(csGrayII.hbmMask);
	} // if

	::DeleteObject(csII.hbmColor);
	::DeleteObject(csII.hbmMask);
	::DeleteDC(hMemDC1);
	::DeleteDC(hMemDC2);
	::ReleaseDC(NULL, hMainDC);

	return hGrayIcon;
} // End of CreateDarkerIcon

COLORREF CButtonST::DarkenColor(COLORREF crColor, double dFactor)
{
	if (dFactor > 0.0 && dFactor <= 1.0)
	{
		BYTE red,green,blue,lightred,lightgreen,lightblue;
		red = GetRValue(crColor);
		green = GetGValue(crColor);
		blue = GetBValue(crColor);
		lightred = (BYTE)(red-(dFactor * red));
		lightgreen = (BYTE)(green-(dFactor * green));
		lightblue = (BYTE)(blue-(dFactor * blue));
		crColor = RGB(lightred,lightgreen,lightblue);
	} // if

	return crColor;
} // End of DarkenColor

// This function assigns icons to the button.
// Any previous icon or bitmap will be removed.
//
// Parameters:
//		[IN]	nIconIn
//				ID number of the icon resource to show when the mouse is over the button.
//				Pass NULL to remove any icon from the button.
//		[IN]	nCxDesiredIn
//				Specifies the width, in pixels, of the icon to load.
//		[IN]	nCyDesiredIn
//				Specifies the height, in pixels, of the icon to load.
//		[IN]	nIconOut
//				ID number of the icon resource to show when the mouse is outside the button.
//				Can be NULL.
//				If this parameter is the special value BTNST_AUTO_GRAY (cast to int) the second
//				icon will be automatically created starting from nIconIn and converted to grayscale.
//				If this parameter is the special value BTNST_AUTO_DARKER (cast to int) the second
//				icon will be automatically created 25% darker starting from nIconIn.
//		[IN]	nCxDesiredOut
//				Specifies the width, in pixels, of the icon to load.
//		[IN]	nCyDesiredOut
//				Specifies the height, in pixels, of the icon to load.
//
// Return value:
//		BTNST_OK
//			Function executed successfully.
//		BTNST_INVALIDRESOURCE
//			Failed loading the specified resource.
//
DWORD CButtonST::SetIcon(int nIconIn, int nCxDesiredIn, int nCyDesiredIn, int nIconOut, int nCxDesiredOut, int nCyDesiredOut)
{
	HICON		hIconIn			= NULL;
	HICON		hIconOut		= NULL;
	HINSTANCE	hInstResource	= NULL;

	// Find correct resource handle
	hInstResource = AfxFindResourceHandle(MAKEINTRESOURCE(nIconIn), RT_GROUP_ICON);

	// Set icon when the mouse is IN the button
	hIconIn = (HICON)::LoadImage(hInstResource, MAKEINTRESOURCE(nIconIn), IMAGE_ICON, nCxDesiredIn, nCyDesiredIn, 0);

  	// Set icon when the mouse is OUT the button
	switch (nIconOut)
	{
		case NULL:
			break;
		case (int)BTNST_AUTO_GRAY:
			hIconOut = BTNST_AUTO_GRAY;
			break;
		case (int)BTNST_AUTO_DARKER:
			hIconOut = BTNST_AUTO_DARKER;
			break;
		default:
			hIconOut = (HICON)::LoadImage(hInstResource, MAKEINTRESOURCE(nIconOut), IMAGE_ICON, nCxDesiredOut, nCyDesiredOut, 0);
			break;
	} // switch

	return SetIcon(hIconIn, hIconOut);
} // End of SetIcon

// This function assigns icons to the button.
// Any previous icon or bitmap will be removed.
//
// Parameters:
//		[IN]	nIconIn
//				ID number of the icon resource to show when the mouse is over the button.
//				Pass NULL to remove any icon from the button.
//		[IN]	nIconOut
//				ID number of the icon resource to show when the mouse is outside the button.
//				Can be NULL.
//				If this parameter is the special value BTNST_AUTO_GRAY (cast to int) the second
//				icon will be automatically created starting from nIconIn and converted to grayscale.
//				If this parameter is the special value BTNST_AUTO_DARKER (cast to int) the second
//				icon will be automatically created 25% darker starting from nIconIn.
//
// Return value:
//		BTNST_OK
//			Function executed successfully.
//		BTNST_INVALIDRESOURCE
//			Failed loading the specified resource.
//
DWORD CButtonST::SetIcon(int nIconIn, int nIconOut)
{
	return SetIcon(nIconIn, 0, 0, nIconOut, 0, 0);
} // End of SetIcon

// This function assigns icons to the button.
// Any previous icon or bitmap will be removed.
//
// Parameters:
//		[IN]	hIconIn
//				Handle fo the icon to show when the mouse is over the button.
//				Pass NULL to remove any icon from the button.
//		[IN]	hIconOut
//				Handle to the icon to show when the mouse is outside the button.
//				Can be NULL.
//				If this parameter is the special value BTNST_AUTO_GRAY the second
//				icon will be automatically created starting from hIconIn and converted to grayscale.
//				If this parameter is the special value BTNST_AUTO_DARKER the second
//				icon will be automatically created 25% darker starting from hIconIn.
//
// Return value:
//		BTNST_OK
//			Function executed successfully.
//		BTNST_INVALIDRESOURCE
//			Failed loading the specified resource.
//
DWORD CButtonST::SetIcon(HICON hIconIn, HICON hIconOut)
{
	BOOL		bRetValue;
	ICONINFO	ii;

	// Free any loaded resource
	FreeResources();

	if (hIconIn)
	{
		// Icon when mouse over button?
		m_csIcons[0].hIcon = hIconIn;
		// Get icon dimension
		::ZeroMemory(&ii, sizeof(ICONINFO));
		bRetValue = ::GetIconInfo(hIconIn, &ii);
		if (bRetValue == FALSE)
		{
			FreeResources();
			return BTNST_INVALIDRESOURCE;
		} // if

		m_csIcons[0].dwWidth	= (DWORD)(ii.xHotspot * 2);
		m_csIcons[0].dwHeight	= (DWORD)(ii.yHotspot * 2);
		::DeleteObject(ii.hbmMask);
		::DeleteObject(ii.hbmColor);

		// Icon when mouse outside button?
		if (hIconOut)
		{
			switch ((int)hIconOut)
			{
				case (int)BTNST_AUTO_GRAY:
					hIconOut = CreateGrayscaleIcon(hIconIn);
					break;
				case (int)BTNST_AUTO_DARKER:
					hIconOut = CreateDarkerIcon(hIconIn);
					break;
			} // switch

			m_csIcons[1].hIcon = hIconOut;
			// Get icon dimension
			::ZeroMemory(&ii, sizeof(ICONINFO));
			bRetValue = ::GetIconInfo(hIconOut, &ii);
			if (bRetValue == FALSE)
			{
				FreeResources();
				return BTNST_INVALIDRESOURCE;
			} // if

			m_csIcons[1].dwWidth	= (DWORD)(ii.xHotspot * 2);
			m_csIcons[1].dwHeight	= (DWORD)(ii.yHotspot * 2);
			::DeleteObject(ii.hbmMask);
			::DeleteObject(ii.hbmColor);
		} // if
	} // if

	Invalidate();

	return BTNST_OK;
} // End of SetIcon

// This function assigns bitmaps to the button.
// Any previous icon or bitmap will be removed.
//
// Parameters:
//		[IN]	nBitmapIn
//				ID number of the bitmap resource to show when the mouse is over the button.
//				Pass NULL to remove any bitmap from the button.
//		[IN]	crTransColorIn
//				Color (inside nBitmapIn) to be used as transparent color.
//		[IN]	nBitmapOut
//				ID number of the bitmap resource to show when the mouse is outside the button.
//				Can be NULL.
//		[IN]	crTransColorOut
//				Color (inside nBitmapOut) to be used as transparent color.
//