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How to use this class in VC6.0 ?
Wish your reply! 3Q
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No explicit license is attached, does The Code Project Open License (CPOL) can be the default one?
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The bug is :
I have added one control of type CTEXT. It is visible with all OS except 98 OS. What can be the problem?
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i tried many times...but it refuses to work!!!!
mind is everything.
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Just follow the instructions. I did it and worked great! without effort... thanks!
(Developed on Windows 2003 Server, Visual Studio 6.0, last service pack.... Application tested on Windows 2003 Server, Windows 2000 and Windows 98)
Jaime
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The file I got is a .asp file.
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I need to constantly redraw the Text every 0.5sec, the screen flicker is really annoying. I tried double buffer also tried this class but no luck. Anyone can help me? Thank you very very much.
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this code is simple and fast and no blink and no extra variables, all you have to do just change the OnPaint() function.
BEGIN_MESSAGE_MAP(CStaticEx, CStatic)
//{{AFX_MSG_MAP(CStaticEx)
ON_WM_PAINT()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_SETTEXT,OnSetText)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CStaticEx message handlers
void CStaticEx::OnPaint()
{
CPaintDC dc(this); // device context for painting
// TODO: Add your message handler code here
CRect rect;
GetClientRect(rect);
CString text;
GetWindowText(text);
dc.SelectObject(GetFont());
dc.SetBkMode(TRANSPARENT);
dc.DrawText(text, rect, DT_LEFT);
// Do not call CStatic::OnPaint() for painting messages
}
LRESULT CStaticEx::OnSetText(WPARAM wParam, LPARAM lParam)
{
ShowWindow(SW_HIDE);
Default();
ShowWindow(SW_SHOW);
return 0;
}
eric feng
www.infospec.com
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Zorglab,
Thanks for your sample code. I tried to change the static
text color, but I couldn't do it. Is it an easy way to do it? Thanks.
James Lauta
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Hello,
it is a good controls. However, do u have any idea of how to make the CStatic controls, with Icon or Bitmap displayed instead of text, to be transparent ?
Best regards,
hing
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Let me show a simple enhancement to display Icon Type CStatic:
Modify the OnPaint() function as below:
void CTransparentStatic::OnPaint()
{
CPaintDC dc(this); // device context for painting
BOOL bfont = FALSE;
BOOL bIcon = FALSE;
BOOL bBmp = FALSE;
// Where to draw text
CRect client_rect;
GetClientRect(client_rect);
// Get the caption
CString szText;
GetWindowText(szText);
HICON hIcon;
hIcon = GetIcon();
if(hIcon)
{
// mean icon type
bIcon = TRUE;
}
HBITMAP hBmp;
hBmp = GetBitmap();
if(hBmp)
{
// mean bitmap type
bBmp = TRUE;
}
// Get the font
CFont *pFont, *pOldFont;
pFont = GetFont();
if(pFont)
{
bfont = TRUE;
}
if(bIcon)
{
dc.DrawIcon(0, 0, hIcon);
}
if(bBmp)
{
// Left for an exercise for interested users
//
}
if(bfont)
{
pOldFont = dc.SelectObject(pFont);
// Map "Static Styles" to "Text Styles"
#define MAP_STYLE(src, dest) if(dwStyle & (src)) dwText |= (dest)
#define NMAP_STYLE(src, dest) if(!(dwStyle & (src))) dwText |= (dest)
DWORD dwStyle = GetStyle(), dwText = 0;
MAP_STYLE( SS_RIGHT, DT_RIGHT );
MAP_STYLE( SS_CENTER, DT_CENTER );
MAP_STYLE( SS_CENTERIMAGE, DT_VCENTER | DT_SINGLELINE );
MAP_STYLE( SS_NOPREFIX, DT_NOPREFIX );
MAP_STYLE( SS_WORDELLIPSIS, DT_WORD_ELLIPSIS );
MAP_STYLE( SS_ENDELLIPSIS, DT_END_ELLIPSIS );
MAP_STYLE( SS_PATHELLIPSIS, DT_PATH_ELLIPSIS );
NMAP_STYLE( SS_LEFTNOWORDWRAP |
SS_CENTERIMAGE |
SS_WORDELLIPSIS |
SS_ENDELLIPSIS |
SS_PATHELLIPSIS, DT_WORDBREAK );
// Set transparent background
dc.SetBkMode(TRANSPARENT);
// Draw the text
dc.DrawText(szText, client_rect, dwText);
// Select old font
dc.SelectObject(pOldFont);
}
}
Again, Thx a lot
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hi,in my program I WRITE:
in ***.h file:
CStatic m_Static;
in **.cpp file:
{
UpdateData(TRUE);
DWORD dw = m_Static.GetStyle();
if( dw & SS_SUNKEN)
m_Static.ModifyStyle(SS_SUNKEN,0);
else
m_Static.ModifyStyle(0,SS_SUNKEN);
m_Static.Invalidate();
UpdateData(FALSE);
}
but "SS_SUNKEN" don't work! why?
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Why not just intercept it?
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It's all fine ang great. But what if you need to redraw the text? It will be drawn on top of the old text and there will be a mess. What to do in this case?
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yes, i have the question too. i am trying to get a resolve. if you have a resolve, please tell me.
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You can call InvalidateRect from parent to invalidate the rect of the cstatic control. It will redraw itself.
From microsoft kb: 639659:
void CRichEdit20::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CRect rect;
GetClientRect(&rect);
ClientToScreen(&rect);
GetParent()->ScreenToClient(&rect);
GetParent()->InvalidateRect(&rect, TRUE);
CRichEditCtrl::OnChar(nChar, nRepCnt, nFlags);
}
Good luck
Tong
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It did use, but blinking when redraw the text.
you are welcome
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I was able to solve this problem by never calling SetWindowText() at all (It doesn't like transparent backgrounds). I keep track of the text internally, with:
CString m_Text;
I then overloaded the = operator:
CString CTransparentStatic::operator=(CString strText)
{
//Set text property
m_Text = strText;
// Invalidate the rect
CRect rect;
GetClientRect(&rect);
ClientToScreen(&rect);
GetParent()->ScreenToClient(&rect);
GetParent()->InvalidateRect(&rect, TRUE);
return strText;
}
When you draw the text, just use:
dc.DrawText(m_Text, client_rect, dwText);
This should work, and no annoying blinking.
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Thx imaudi,
works great. I made it in a little bit different way.
in the TransparentStatic.cpp
1. add the membervariable CString m_Text;
2. remove:
CString szText;
GetWindowText(szText);
3. change dc.drawText to: "dc.DrawText(m_Text, client_rect, dwText);"
Then i create the static and set m_Text in it.
It´s the same than yours but without changing the constructor... however
daSickboy
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this code is simple and fast and no blink and no extra variables, all you have to do just change the OnPaint() function.
BEGIN_MESSAGE_MAP(CStaticEx, CStatic)
//{{AFX_MSG_MAP(CStaticEx)
ON_WM_PAINT()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_SETTEXT,OnSetText)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CStaticEx message handlers
void CStaticEx::OnPaint()
{
CPaintDC dc(this); // device context for painting
// TODO: Add your message handler code here
CRect rect;
GetClientRect(rect);
CString text;
GetWindowText(text);
dc.SelectObject(GetFont());
dc.SetBkMode(TRANSPARENT);
dc.DrawText(text, rect, DT_LEFT);
// Do not call CStatic::OnPaint() for painting messages
}
LRESULT CStaticEx::OnSetText(WPARAM wParam, LPARAM lParam)
{
ShowWindow(SW_HIDE);
Default();
ShowWindow(SW_SHOW);
return 0;
}
eric feng
www.infospec.com
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eric feng wrote: dc.SelectObject(GetFont());
dc.SetBkMode(TRANSPARENT);
dc.DrawText(text, rect, DT_LEFT);
You should re-select the font originally selected by the device context before exiting the method
<br />
CFont *pOldFont = dc.SelectObject(GetFont());<br />
dc.SetBkMode(TRANSPARENT);<br />
dc.DrawText(text, rect, DT_LEFT);<br />
dc.SelectObject(pOldFont);<br />
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This code works but the align center is ignored, all text is justified left regardless. The DT_LEFT needs to looked up and set to what the control is set to.
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Awesome answer and simple solution imaudi!
Helped me on another static class (XColorStatic)
where I was changing text in a transparent situation.
Thanks!!!
Wayne
Wayne L. Burgess
TEN-K Computer Services Inc.
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I use the class in windowsce.net,Static control show the desktop's color.Why?
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