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   源码介绍

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实时获取鼠标光标位置的颜色

CPoint point;
GetCursorPos(&point);//get cursor pos
HDC hDC = ::GetDC(NULL);//lock paint DC
COLORREF colorref = ::GetPixel(hDC, point.x, point.y);//get the cursor color
CString Color_textr, Color_textg, Color_textb, Color_textrgb;
red = GetRValue(colorref);//store red color
Color_textr.Format(_T("%d"), red);
green = GetGValue(colorref);//store green color
Color_textg.Format(_T("%d"), green);
blue = GetBValue(colorref);//store blue color
Color_textb.Format(_T("%d"), blue);
Color_textrgb = Color_textr _T(",") Color_textg _T(",") Color_textb;
SetDlgItemText(IDC_Color, Color_textrgb);//display the color value
//RGB Hex值显示
Color_textrgb.Format(_T("#%02X,%02X,%02X"), colorref & 0xFF, (colorref >> 8) & 0xFF, colorref >> 16);
strHVl.SetWindowText(Color_textrgb);
Color_textrgb.Format(_T("%d,%d"), point.x, point.y);
strLoc.SetWindowText(Color_textrgb);
OnPaint();
::ReleaseDC(NULL, hDC);//unlock DC
CDialogEx::OnTimer(nIDEvent);