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改变button颜色是为了实现在程序运行时得到闪烁的效果，该怎么办啊？

EnableWindow (FASLE)可以disable.

改变button 颜色
class CClrButton : public CButton
{
// Construction
public:
CClrButton();// Attributes
public:// Operations
public:
// UK version
void SetColour(COLORREF text_colour,
   COLORREF background_colour); // US version
void SetColor(COLORREF text_colour,
  COLORREF background_colour)
{
SetColour(text_colour,
  background_colour);
}; // UK version
void SetColour(COLORREF text_colour,
   COLORREF background_colour,
   COLORREF disabled_background_colour); // US version
void SetColor(COLORREF text_colour,
  COLORREF background_colour,
  COLORREF disabled_background_colour)
{
SetColour(text_colour,
  background_colour,
  disabled_background_colour);
}; void ResetColour();// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CClrButton)
public:
virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);
//}}AFX_VIRTUAL// Implementation
public:
virtual ~CClrButton();private:
COLORREF text_colour, background_colour, disabled_background_colour;
COLORREF light, highlight, shadow, dark_shadow; // Generated message map functions
protected:
//{{AFX_MSG(CClrButton)
// NOTE - the ClassWizard will add and remove member functions here.
//}}AFX_MSG void DrawFrame(CDC *dc, CRect r, int state);
void DrawFilledRect(CDC *dc, CRect r, COLORREF colour);
void DrawLine(CDC *dc, long sx, long sy, long ex, long ey, COLORREF colour);
void DrawButtonText(CDC *dc, CRect r, const char *buf, COLORREF text_colour); DECLARE_MESSAGE_MAP()
};

// ClrButton.cpp : implementation file
//#include "stdafx.h"
#include "ClrButtonsApp.h"
#include "ClrButton.h"#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endifconst COLORREF CLR_BTN_WHITE  = RGB(255, 255, 255);
const COLORREF CLR_BTN_BLACK  = RGB(0, 0, 0);
const COLORREF CLR_BTN_DGREY  = RGB(128, 128, 128);
const COLORREF CLR_BTN_GREY   = RGB(192, 192, 192);
const COLORREF CLR_BTN_LLGREY = RGB(223, 223, 223);const int BUTTON_IN   = 0x01;
const int BUTTON_OUT   = 0x02;
const int BUTTON_BLACK_BORDER = 0x04;/////////////////////////////////////////////////////////////////////////////
// CClrButtonCClrButton::CClrButton()
{
text_colour = GetSysColor(COLOR_BTNTEXT);
background_colour = GetSysColor(COLOR_BTNFACE);
disabled_background_colour = background_colour;
light = GetSysColor(COLOR_3DLIGHT);
highlight = GetSysColor(COLOR_BTNHIGHLIGHT);
shadow = GetSysColor(COLOR_BTNSHADOW);
dark_shadow = GetSysColor(COLOR_3DDKSHADOW);
}CClrButton::~CClrButton()
{
}void CClrButton::SetColour(COLORREF new_text_colour, COLORREF new_background_colour)
{
text_colour = new_text_colour;
background_colour = new_background_colour;
disabled_background_colour = GetSysColor(COLOR_BTNFACE); Invalidate(FALSE);
}void CClrButton::SetColour(COLORREF new_text_colour, COLORREF new_background_colour, COLORREF new_disabled_background_colour)
{
text_colour = new_text_colour;
background_colour = new_background_colour;
disabled_background_colour = new_disabled_background_colour; Invalidate(FALSE);
}void CClrButton::ResetColour()
{
text_colour = GetSysColor(COLOR_BTNTEXT);
background_colour = GetSysColor(COLOR_BTNFACE);
disabled_background_colour = background_colour;
light = GetSysColor(COLOR_3DLIGHT);
highlight = GetSysColor(COLOR_BTNHIGHLIGHT);
shadow = GetSysColor(COLOR_BTNSHADOW);
dark_shadow = GetSysColor(COLOR_3DDKSHADOW); Invalidate(FALSE);
}BEGIN_MESSAGE_MAP(CClrButton, CButton)
//{{AFX_MSG_MAP(CClrButton)
// NOTE - the ClassWizard will add and remove mapping macros here.
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CClrButton message handlersvoid CClrButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
CDC *dc;
CRect focus_rect, button_rect, text_rect, offset_text_rect;
UINT state;

dc    = CDC::FromHandle(lpDrawItemStruct->hDC);
state = lpDrawItemStruct->itemState; focus_rect.CopyRect(&lpDrawItemStruct->rcItem);
button_rect.CopyRect(&lpDrawItemStruct->rcItem); text_rect = button_rect;
text_rect.OffsetRect(-1, -1);
offset_text_rect = text_rect;
offset_text_rect.OffsetRect(1, 1); // Set the focus rectangle to just past the border decoration
focus_rect.left   += 4;
    focus_rect.right  -= 4;
    focus_rect.top    += 4;
    focus_rect.bottom -= 4;

// Retrieve the button's caption
    const int bufSize = 512;
    TCHAR buffer[bufSize];
    GetWindowText(buffer, bufSize); if (state & ODS_DISABLED)
    {
DrawFilledRect(dc, button_rect, disabled_background_colour);
}
else
{
DrawFilledRect(dc, button_rect, background_colour);
}

if (state & ODS_SELECTED)
{
     DrawFrame(dc, button_rect, BUTTON_IN);
}
else
{
if ((state & ODS_DEFAULT) || (state & ODS_FOCUS))
{
DrawFrame(dc, button_rect, BUTTON_OUT | BUTTON_BLACK_BORDER);
}
else
{
DrawFrame(dc, button_rect, BUTTON_OUT);
}
} if (state & ODS_DISABLED)
{
DrawButtonText(dc, offset_text_rect, buffer, CLR_BTN_WHITE);
DrawButtonText(dc, text_rect, buffer, CLR_BTN_DGREY);
    }
else
{
if (state & ODS_SELECTED)
{
DrawButtonText(dc, offset_text_rect, buffer, text_colour);
}
else
{
   DrawButtonText(dc, text_rect, buffer, text_colour);
}
} if (state & ODS_FOCUS)
{
DrawFocusRect(lpDrawItemStruct->hDC, (LPRECT)&focus_rect);
}
} void CClrButton::DrawFrame(CDC *dc, CRect r, int state)
{
COLORREF colour; if (state & BUTTON_BLACK_BORDER)
{
colour = CLR_BTN_BLACK; DrawLine(dc, r.left, r.top, r.right, r.top,    colour); // Across top
DrawLine(dc, r.left, r.top, r.left,  r.bottom, colour); // Down left DrawLine(dc, r.left,      r.bottom - 1, r.right,     r.bottom - 1, colour); // Across bottom
DrawLine(dc, r.right - 1, r.top,        r.right - 1, r.bottom,     colour); // Down right r.InflateRect(-1, -1);
}

if (state & BUTTON_OUT)
{
colour = highlight; DrawLine(dc, r.left, r.top, r.right, r.top,    colour); // Across top
DrawLine(dc, r.left, r.top, r.left,  r.bottom, colour); // Down left colour = dark_shadow;

DrawLine(dc, r.left,      r.bottom - 1, r.right,     r.bottom - 1, colour); // Across bottom
DrawLine(dc, r.right - 1, r.top,        r.right - 1, r.bottom,     colour); // Down right

r.InflateRect(-1, -1); colour = light;

DrawLine(dc, r.left, r.top, r.right, r.top,    colour); // Across top
DrawLine(dc, r.left, r.top, r.left,  r.bottom, colour); // Down left colour = shadow;

DrawLine(dc, r.left,      r.bottom - 1, r.right,     r.bottom - 1, colour); // Across bottom
DrawLine(dc, r.right - 1, r.top,        r.right - 1, r.bottom,     colour); // Down right
} if (state & BUTTON_IN)
{
colour = dark_shadow; DrawLine(dc, r.left, r.top, r.right, r.top,    colour); // Across top
DrawLine(dc, r.left, r.top, r.left,  r.bottom, colour); // Down left
DrawLine(dc, r.left,      r.bottom - 1, r.right,     r.bottom - 1, colour); // Across bottom
DrawLine(dc, r.right - 1, r.top,        r.right - 1, r.bottom,     colour); // Down right

r.InflateRect(-1, -1); colour = shadow;

DrawLine(dc, r.left, r.top, r.right, r.top,    colour); // Across top
DrawLine(dc, r.left, r.top, r.left,  r.bottom, colour); // Down left
DrawLine(dc, r.left,      r.bottom - 1, r.right,     r.bottom - 1, colour); // Across bottom
DrawLine(dc, r.right - 1, r.top,        r.right - 1, r.bottom,     colour); // Down right
}
}void CClrButton::DrawFilledRect(CDC *dc, CRect r, COLORREF colour)
{
CBrush B; B.CreateSolidBrush(colour);
dc->FillRect(r, &B);
}void CClrButton::DrawLine(CDC *dc, long sx, long sy, long ex, long ey, COLORREF colour)
{
CPen new_pen;
CPen *old_pen; new_pen.CreatePen(PS_SOLID, 1, colour);
old_pen = dc->SelectObject(&new_pen);
dc->MoveTo(sx, sy);
dc->LineTo(ex, ey);
dc->SelectObject(old_pen);
    new_pen.DeleteObject();
}
void CClrButton::DrawButtonText(CDC *dc, CRect r, const char *Buf, COLORREF text_colour)
{
    COLORREF previous_colour; previous_colour = dc->SetTextColor(text_colour);
    dc->SetBkMode(TRANSPARENT);
dc->DrawText(Buf, strlen(Buf), r, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
dc->SetTextColor(previous_colour);
}

调试易

高分求救，快来啊！！

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