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   源码介绍

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MFC GDIPlus封装的CGdipButton界面，支持很多绚丽效果，程序完成可运行，希望大家下载

HBRUSH CGdipButton::CtlColor(CDC* pScreenDC, UINT nCtlColor) 
{
if(!m_bHaveBitmaps)
{
if(!m_pStdImage)
{
return NULL; // Load the standard image with LoadStdImage()
}

CBitmap bmp, *pOldBitmap;

CRect rect;
GetClientRect(rect);

// do everything with mem dc
CMemDC pDC(pScreenDC, rect);

Gdiplus::Graphics graphics(pDC->m_hDC);

// background
if (m_dcBk.m_hDC == NULL)
{

CRect rect1;
CClientDC clDC(GetParent());
GetWindowRect(rect1);
GetParent()->ScreenToClient(rect1);

m_dcBk.CreateCompatibleDC(&clDC);
bmp.CreateCompatibleBitmap(&clDC, rect.Width(), rect.Height());
pOldBitmap = m_dcBk.SelectObject(&bmp);
m_dcBk.BitBlt(0, 0, rect.Width(), rect.Height(), &clDC, rect1.left, rect1.top, SRCCOPY);
bmp.DeleteObject();
}

// standard image
if (m_dcStd.m_hDC == NULL)
{
PaintBk(pDC);

graphics.DrawImage(*m_pStdImage, 0, 0);

m_dcStd.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcStd.SelectObject(&bmp);
m_dcStd.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();

// standard image pressed
if (m_dcStdP.m_hDC == NULL)
{
PaintBk(pDC);

graphics.DrawImage(*m_pStdImage, 1, 1); // 点击图像偏移的像素

m_dcStdP.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcStdP.SelectObject(&bmp);
m_dcStdP.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();
}

// standard image hot
if(m_dcStdH.m_hDC == NULL)
{
PaintBk(pDC);

ColorMatrix HotMat = { 1.05f, 0.00f, 0.00f, 0.00f, 0.00f,
0.00f, 1.05f, 0.00f, 0.00f, 0.00f,
0.00f, 0.00f, 1.05f, 0.00f, 0.00f,
0.00f, 0.00f, 0.00f, 1.00f, 0.00f,
0.05f, 0.05f, 0.05f, 0.00f, 1.00f
};

ImageAttributes ia;
ia.SetColorMatrix(&HotMat);

float width = (float)m_pStdImage->m_pBitmap->GetWidth();
float height = (float)m_pStdImage->m_pBitmap->GetHeight();

RectF grect; grect.X=0, grect.Y=0; grect.Width = width; grect.Height = height;

graphics.DrawImage(*m_pStdImage, grect, 0, 0, width, height, UnitPixel, &ia);

m_dcStdH.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcStdH.SelectObject(&bmp);

m_dcStdH.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();
}

// grayscale image
if(m_dcGS.m_hDC == NULL)
{
PaintBk(pDC);

ColorMatrix GrayMat = { 0.30f, 0.30f, 0.30f, 0.00f, 0.00f,
0.59f, 0.59f, 0.59f, 0.00f, 0.00f,
0.11f, 0.11f, 0.11f, 0.00f, 0.00f,
0.00f, 0.00f, 0.00f, 1.00f, 0.00f,
0.00f, 0.00f, 0.00f, 0.00f, 1.00f };

ImageAttributes ia;
ia.SetColorMatrix(&GrayMat);

float width = (float)m_pStdImage->m_pBitmap->GetWidth();
float height = (float)m_pStdImage->m_pBitmap->GetHeight();

RectF grect; grect.X=0, grect.Y=0; grect.Width = width; grect.Height = height;

graphics.DrawImage(*m_pStdImage, grect, 0, 0, width, height, UnitPixel, &ia);

m_dcGS.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcGS.SelectObject(&bmp);
m_dcGS.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();
}
}

// alternate image
if( (m_dcAlt.m_hDC == NULL) && m_bHaveAltImage )
{
PaintBk(pDC);

graphics.DrawImage(*m_pAltImage, 0, 0);

m_dcAlt.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcAlt.SelectObject(&bmp);
m_dcAlt.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();

// alternate image pressed
if( (m_dcAltP.m_hDC == NULL) && m_bHaveAltImage )
{
PaintBk(pDC);

graphics.DrawImage(*m_pAltImage, 1, 1);

m_dcAltP.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcAltP.SelectObject(&bmp);
m_dcAltP.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();
}

// alternate image hot
if(m_dcAltH.m_hDC == NULL)
{
PaintBk(pDC);

ColorMatrix HotMat = { 1.05f, 0.00f, 0.00f, 0.00f, 0.00f,
0.00f, 1.05f, 0.00f, 0.00f, 0.00f,
0.00f, 0.00f, 1.05f, 0.00f, 0.00f,
0.00f, 0.00f, 0.00f, 1.00f, 0.00f,
0.05f, 0.05f, 0.05f, 0.00f, 1.00f };

ImageAttributes ia;
ia.SetColorMatrix(&HotMat);

float width = (float)m_pStdImage->m_pBitmap->GetWidth();
float height = (float)m_pStdImage->m_pBitmap->GetHeight();

RectF grect; grect.X=0, grect.Y=0; grect.Width = width; grect.Height = height;

graphics.DrawImage(*m_pAltImage, grect, 0, 0, width, height, UnitPixel, &ia);

m_dcAltH.CreateCompatibleDC(pDC);
bmp.CreateCompatibleBitmap(pDC, rect.Width(), rect.Height());
pOldBitmap = m_dcAltH.SelectObject(&bmp);

m_dcAltH.BitBlt(0, 0, rect.Width(), rect.Height(), pDC, 0, 0, SRCCOPY);
bmp.DeleteObject();
}
}

if(m_pCurBtn == NULL)
{
m_pCurBtn = &m_dcStd;
}

m_bHaveBitmaps = TRUE;
}

return NULL;
}