Vc中的色棒
for(int index=0;index<=128;index++)
{
int COLOR[3] = {0, 0, 143};
if (index <= 14)
{COLOR[0] = 0;
COLOR[1] = 0;
COLOR[2] = 143 + index * 8;
}
else if (index > 14 && index <= 14 + 32)
{
int differ = index - 14;
COLOR[0] = 0;
COLOR[1] = differ * 8;
COLOR[2] = 255;
if (COLOR[1] > 255)
{
COLOR[1] = 255;
}
}
else if (index > 46 && index <= 46 + 32)
{
int differ = index - 46;
COLOR[0] = differ * 8;
COLOR[1] = 255;
COLOR[2] = 255 - differ * 8;
if (COLOR[0] > 255)
{
COLOR[0] = 255;
}
if (COLOR[2] < 0)
{
COLOR[2] = 0;
}
}
else if (index > 78 && index <= 78 + 32)
{
int differ = index - 78;
COLOR[0] = 255;
COLOR[1] = 255 - differ * 8;
COLOR[2] = 0;
if (COLOR[1] < 0)
{
COLOR[1] = 0;
}
}
else
{
int differ = index - 110;
COLOR[0] = 255 - differ * 8;
COLOR[1] = 0;
COLOR[2] = 0;
}
CPen newPen(PS_SOLID, 2,RGB(COLOR[0], COLOR[1], COLOR[2]));
CPen *pOldPen = pDC->SelectObject(&newPen);
pDC->MoveTo(710, 340-2 * index);
pDC->LineTo(740, 340-2 * index);
newPen.DeleteObject();
pDC->SelectObject(&pOldPen);
}
[解决办法]
色棒又名什么？
[解决办法]
newPen.DeleteObject();
pDC->SelectObject(&pOldPen);
这两句顺序错了！应该是这样：
pDC->SelectObject(&pOldPen);
newPen.DeleteObject();
不然，newPen.DeleteObject(); 会失败的！
[解决办法]
又见fandh,没错你那样写的话，newPen.DeleteObject()是起不到做用的!
