[MFC] CProgressCtrl-在启用主题的情况下更改进度栏颜色 [英] [MFC] CProgressCtrl - Change progress bar color with themes enabled

问题描述

你好，

我想更改CProgressCtrl的条形颜色

我已经做到了，它可以在经典"主题环境下工作.但是，启用主题后，栏将诉诸主题指示的颜色.

有没有办法覆盖这个?我仍然希望以对话框为主题...

感谢您的阅读！

Pabs

Hi there,

I am wanting to change the bar color of a CProgressCtrl

I have done this and it works on a "classic" theme environment. But when themes are enabled the bar resorts to the color dictated by the theme.

Is there a way to override this? I still want the dialog to be themed...

Thanks for reading!

Pabs

推荐答案

好，我现在明白了.

我创建了自己的派生自CProgressCtrl的类，并覆盖了OnPaint命令.

Ok, I understand this now.

I created my own class derived from CProgressCtrl and override the OnPaint command.

void CMyProgress::OnPaint()
{
    CPaintDC dc(this); // device context for painting
    CRect clientRect ;
    CRect windowRect;

    GetWindowRect(windowRect);
    windowRect.SetRect(0, 0, windowRect.Width(), windowRect.Height());

    GetClientRect(clientRect);
    clientRect.SetRect(1, 1, windowRect.Width() + 1, windowRect.Height() + 1);

    // Draw the border of the progress control. Use a standard 3D border
    dc.Draw3dRect(windowRect, GetSysColor(COLOR_3DSHADOW), GetSysColor(COLOR_3DLIGHT));

    CRect barRect = clientRect;
    //Is Control Horizontal or Vertical.
    if(! GetStyle() && PBS_VERTICAL)
    {
        int rangeLow, rangeHigh;
        GetRange(rangeLow, rangeHigh);

        int x = GetPos(), y;

        if(x < rangeLow || x > rangeHigh)
        return;

        // Calculate the width

        x -= rangeLow;
        x *= 100;
        x /= (rangeHigh - rangeLow);

        y = clientRect.Width();
        y *= x;
        y /= 100;
        y += clientRect.left;

        // Using the y variable as the new width, define a new rectangle

        barRect.right = barRect.left + y;
    }
    else
    {
        int rangeLow, rangeHigh;
        GetRange(rangeLow, rangeHigh);

        int y = GetPos(), x;

        if(y < rangeLow || y > rangeHigh)
        return;

        //Calculate Height
        y -= rangeLow;
        y *= 100;
        y /= (rangeHigh - rangeLow);

        x = clientRect.Height();
        x *= y;
        x /= 100;
        x += clientRect.top;

        
        barRect.top = barRect.bottom - x;

    }
    // Use barRect as the rectangle for drawing the progress bar.
    CBrush brush;
    brush.CreateSolidBrush(m_BarColour);
    dc.FillRect(barRect, &brush);

}

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