哪位大哥会透明按钮？（实现了马上给分）

SlayerCarrier 2004-01-26 02:10:20

我从CButton派生了一个CButtonX类，在DrawItem中写字。而主窗口的背景是贴上去的Bitmap，按钮是动态Create的。可是按钮不透明（一个灰色的方框，难看）。哪位大哥指点一下，感激不尽！！！

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DebugXP 2004-02-01

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参考CButtonST

yintongshun 2004-02-01

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CButtonST:
http://www.vckbase.com/document/viewdoc.asp?id=518

http://www.vckbase.com/document/viewdoc.asp?id=519

http://www.vckbase.com/document/viewdoc.asp?id=647

http://www.vckbase.com/document/viewdoc.asp?id=521

http://www.vckbase.com/document/viewdoc.asp?id=520

http://www.vckbase.com/document/viewdoc.asp?id=517

DotLSong 2004-02-01

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up，参考CButtonST
去http://www.vckbase.com/ 看看

zhangcrony 2004-01-31

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void CXxxButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{

// TODO: Add your code to draw the specified item
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
CRect btnRect;
btnRect.CopyRect(&lpDrawItemStruct->rcItem);
pDC->SetBkMode(TRANSPARENT);
pDC->SetTextColor(RGB(0,0,80));
pDC->DrawText( "XButton",btnRect,DT_CENTER);
}
BOOL CXxxButton::OnEraseBkgnd(CDC* pDC)
{
return 0; ////不行的话就改成1
}

无我无人 2004-01-31

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你是要求位图的背景不透明，而不是按钮本身透明吧？也就是要像ICON那样是吗？

dTianx 2004-01-27

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HBRUSH CMyDialog::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
// HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

switch (nCtlColor)
{
case CTLCOLOR_STATIC:
pDC->SetTextColor(RGB(0, 0, 0));
pDC->SetBkColor(RGB(255,255,255));
case CTLCOLOR_EDIT:
pDC->SetTextColor(RGB(0, 0, 0));
pDC->SetBkColor(RGB(255,255,255));
case CTLCOLOR_LISTBOX:
pDC->SetTextColor(RGB(0, 0, 0));
pDC->SetBkColor(RGB(255,255,255));
case CTLCOLOR_SCROLLBAR:
pDC->SetTextColor(RGB(0, 0, 0));
pDC->SetBkColor(RGB(255,255,255));
case CTLCOLOR_BTN:
pDC->SetTextColor(RGB(0, 0, 0));
pDC->SetBkColor(RGB(255,255,255));
case CTLCOLOR_DLG:
return m_Brush;
}

// TODO: Return a different brush if the default is not desired
return m_Brush;
}

//现在懂了么??

wmzlq 2004-01-27

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搜索一下CQiuXPButton

nonocast 2004-01-26

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HOHO

看看CButtonST

zhangcrony 2004-01-26

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zhjie374 2004-01-26

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lingfeng8888(棱枫):YEAH!

zhangcrony 2004-01-26

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同意lingfeng8888(棱枫) ,試試先﹗

ok1234567 2004-01-26

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重载：
void CXxxButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{

// TODO: Add your code to draw the specified item
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
CRect btnRect;
btnRect.CopyRect(&lpDrawItemStruct->rcItem);
pDC->SetBkMode(TRANSPARENT);
pDC->SetTextColor(RGB(0,0,80));
pDC->DrawText( "XButton",btnRect,DT_CENTER);
}
BOOL CXxxButton::OnEraseBkgnd(CDC* pDC)
{
return FALSE;
}

lingfeng8888 2004-01-26

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在你的派生CButtonX类中，映射WM_ERASEBKGND消息，在该消息处理函数中
BOOL C_your_Dlg::OnEraseBkgnd(CDC* pDC)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值

return CDialog::OnEraseBkgnd(pDC); //将这句改为返回1（或0），然后试试
}

SlayerCarrier 2004-01-26