c++ - 更改 win32 的单选按钮文本颜色

Question

颜色变化时，我听 WM_CTLCOLORSTATIC 并采取相应行动:

LRESULT ProcessWindowMessage(_In_ HWND hWnd, _In_ UINT uMsg, _In_ WPARAM wParam, _In_ LPARAM lParam)
    {
        switch (uMsg)
        {
        case WM_CTLCOLORSTATIC:
            LRESULT lBrush = ::DefWindowProc(hWnd, uMsg, wParam, lParam); // get default brush used so far
            ::SetBkMode((HDC)wParam, TRANSPARENT);
            ::SetTextColor((HDC)wParam, RGB(m_color.red, m_color.green, m_color.blue));
            return lBrush;
        }
    }

这适用于常规静态文本:标签等，但对常规单选按钮没有影响。

在调试过程中，我试过听:

1. WM_DRAWITEM - 没有收到任何事件
2. WM_CTLCOLORBTN - 仅接收常规按钮(确定/取消)的事件
3. WM_CTLCOLOREDIT - 没有收到任何事件。

我正在子类化到另一个不是由我生成/创建，而是由我的进程构建的窗口。

Answer 1

@igal k 说 SetWindowTheme 不起作用。由于示例代码的注释不够。我将其发布为答案。

首先是结果。

代码:

OnInitDialog:
    ::SetWindowTheme(GetDlgItem(IDC_RADIO1)->GetSafeHwnd(), L"wstr", L"wstr");

HBRUSH CMFCApplication1Dlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    // Call the base class implementation first! Otherwise, it may 
    // undo what we're trying to accomplish here.
    HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

    // Are we painting the IDC_MYSTATIC control? We can use 
    // CWnd::GetDlgCtrlID() to perform the most efficient test. 
    if (pWnd->GetDlgCtrlID() == IDC_RADIO1)
    {
        // Set the text color to red
        pDC->SetTextColor(RGB(255, 0, 0));

        // Set the background mode for text to transparent  
        // so background will show thru.
        pDC->SetBkMode(TRANSPARENT);

        // Return handle to our CBrush object
        hbr = m_brush;
    }

    return hbr;
}