放置在标签控件上的透明子对话框

问题描述

大家好！

我有一个带有选项卡控件的基于Mfc的对话框.在此控件上，我想放置一个子对话框，其大小为选项卡控件的一半.该页面包含一些按钮和静态变量.
现在我的问题是:
我希望子对话框具有选项卡控件的背景，在某些XP样式中，该控件具有颜色渐变.

我试过了

Hi everyone!

I have a mfc based dialog with a tab control. On this control I want to place a child dialog, that is half the size of the tab control. The page contains some buttons ans statics.
Now my problem:
I want the child dialog to have the background of the tab control, which in some XP-styles has a color gradient.

I tried

EnableThemeDialogTexture(m_hWnd,ETDT_ENABLETAB);

但这仅在页面与选项卡控件一样大的情况下才有效.否则，渐变看起来会有所不同.

我也尝试过:

But that only works if the page is as big as the tab control. Otherwise the gradient looks different.

I also tried:

BOOL CDialogEx::OnEraseBkgnd(CDC* pDC)
{
DWORD style = GetExStyle();
if ( style & WS_EX_TRANSPARENT )
{
    return TRUE;
}
return CDialog::OnEraseBkgnd(pDC);
}

这对于页面来说效果很好，但是页面上的控件看起来很糟糕，它们使用默认的颜色背景绘制.

我希望有人能帮帮忙.

This works fine for the page, but the controls on it look bad, the are drawn with a default color background.

I hope someone can help. Thanks ahead!

推荐答案

HBRUSH CBaseView::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
	HBRUSH hbr = __super::OnCtlColor(pDC, pWnd, nCtlColor);

	if(nCtlColor == CTLCOLOR_STATIC)
	{
		pDC->SetBkMode(TRANSPARENT);
		return (HBRUSH)::GetStockObject(HOLLOW_BRUSH);
	}

	return hbr;
}

我注意到仅只读编辑控件存在此问题(因为系统将其视为静态控件)，因此我将其固定为:(但不适用于渐变背景)

I noticed a problem with this only with read-only edit controls (because the system treats them as static controls), I fixed it like this: (but that wont work well for a gradient background)

HBRUSH CBaseView::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
	HBRUSH hbr = __super::OnCtlColor(pDC, pWnd, nCtlColor);

	if(nCtlColor == CTLCOLOR_STATIC)
	{
		pDC->SetBkMode(TRANSPARENT);
		pDC->SetBkColor(RGB(242,242,242));
		return (HBRUSH)m_hSTBackBrush;
	}

	return hbr;
} 

祝你好运

Good luck

if((nCtlColor == CTLCOLOR_STATIC) || (nCtlColor == CTLCOLOR_BTN)) ... 

如果您还有常规的按钮，它们可能看起来不正确(但您可以尝试一下).

我相信我会做这样的事情:

if you also have regular push buttons they may look wrong (but you can try it).

I believe what I would do is something like this:

HBRUSH CBaseView::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    switch(pWnd->GetDlgCtrlId())
    {
        case IDC_CHECKBOX1:
        case IDC_CHECKBOX2:
        case IDC_RADIOBTN1:
        case IDC_RADIOBTN2:
            pDC->SetBkMode(TRANSPARENT);
            return (HBRUSH)::GetStockObject(HOLLOW_BRUSH);
        default:
            return __super::OnCtlColor(pDC, pWnd, nCtlColor);
    }
}

祝您好运，很高兴为您提供帮助

Good luck, glad to help

这篇关于放置在标签控件上的透明子对话框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！