求 CBitmapButton使用，换肤---分不够再加
1.CBitmapButton使用
主要是如何只设置一张bmp图片（里面有4段按钮不同状态图形）得到按钮在up-down-等四种状态的表示。
如果单独设置 4张资源图片肯定可以达到目的。但我看大部分程序都只有一个资源(一个bmp文件中有按钮的4副图片) 。如何实现一张bmp图片达到目的？
2 vc(不依赖其它库)动态（在程序执行中）换肤如何实现，提供例子最好。 Cbitmapbutton 换肤
[解决办法]
MFC没用过，
1.猜测：CBitmapButton如果可以用一张4种状态图，实现按钮的4种状态，那肯定做了相应的处理。
例：获取位图像素坐标Rect(0,0,30,20)，作为第一张正常状态下按钮..
2.
楼主可以看一下CBitmapButton的实现，应该是基于Button类扩展的按钮，如果当前的button满足不了你的需求，楼主也可以自己实现一个button类，扩展一些功能..
动态换肤的例子教程：http://www.vckbase.com/index.php/wv/1529.html
[解决办法]
CButton类响应鼠标事件时重画底图，重画的坐标不同就成。
[解决办法]
N早前做的一个，还能用。
// CAmoymanButton.h
#pragma once
#include <AtlImage.h>
using namespace Gdiplus;
class CAmoymanButton : public CWnd
{
DECLARE_DYNAMIC(CAmoymanButton)
public:
CAmoymanButton();
virtual ~CAmoymanButton();
public:
BOOL Create(int Left, int Top, int Width, int Height, CWnd* pParentWnd, UINT nID, CImage& ButtonImage);
void Enabled(bool bEnabled);
bool Enabled(void);
private:
void ChangeState(int State);
private:
enum State {Normal = 0, Focus, Selected, Disabled};
private:
CImagem_Image;
boolm_Enabled;
intm_State;
intm_ImageWidth;
intm_ImageHeight;
intm_Width;
intm_Height;
protected:
afx_msg void OnPaint();
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
afx_msg void OnMouseMove(UINT nFlags, CPoint point);
DECLARE_MESSAGE_MAP()
};
// CAmoymanButton.cpp
#include "stdafx.h"
#include "AmoymanGobang.h"
#include "AmoymanButton.h"
IMPLEMENT_DYNAMIC(CAmoymanButton, CWnd)
CAmoymanButton::CAmoymanButton()
{
m_State = Normal;
m_Enabled = true;
}
CAmoymanButton::~CAmoymanButton()
{
}
BEGIN_MESSAGE_MAP(CAmoymanButton, CWnd)
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_WM_PAINT()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
// CAmoymanButton 消息处理程序
BOOL CAmoymanButton::Create(int Left, int Top, int Width, int Height, CWnd* pParentWnd, UINT nID, CImage& ButtonImage)
{
BOOL Result = CWnd::Create(NULL, NULL, WS_CHILD
[解决办法]
WS_VISIBLE, CRect(Left, Top, Left + Width, Top + Height), pParentWnd, nID);
if (!m_Image.IsNull())
{
m_Image.Destroy();
}
m_Image.Create(Width * 4, Height, 32, CImage::createAlphaChannel);
m_Width = Width;
m_Height = Height;
m_ImageWidth = ButtonImage.GetWidth();
m_ImageHeight = ButtonImage.GetHeight();
int nRowBytesSrc = ButtonImage.GetPitch();
int nRowBytesDst = m_Image.GetPitch();
BYTE* pBitsSrc = (BYTE*)ButtonImage.GetBits();
BYTE* pBitsDst = (BYTE*)m_Image.GetBits();
for (int y = 0; y < m_ImageHeight; ++y, pBitsSrc += nRowBytesSrc, pBitsDst += nRowBytesDst)
{
UINT* pSrc = (UINT*)pBitsSrc;
UINT* pDst = (UINT*)pBitsDst;
for (int x = 0; x < m_ImageWidth; ++x)
{
*pDst++ = *pSrc++;
}
}
return Result;
}
void CAmoymanButton::OnPaint()
{
static int State = -1;
CPaintDC dc(this);
m_Image.Draw(dc.m_hDC, 0, 0, m_Width, m_Height, m_State * m_Width, 0, m_Width, m_Height);
if (m_State != State)
{
State = m_State;
CRect Rect;
CWnd* pParent = GetParent();
GetWindowRect(&Rect);
pParent->ScreenToClient(&Rect);
pParent->InvalidateRect(&Rect);
pParent->UpdateWindow();
}
}
void CAmoymanButton::OnLButtonDown(UINT nFlags, CPoint point)
{
if (m_Enabled)
{
SetCapture();
ChangeState(Selected);
}
CWnd::OnLButtonDown(nFlags, point);
}
void CAmoymanButton::OnLButtonUp(UINT nFlags, CPoint point)
{
if (m_Enabled)
{
ReleaseCapture();
ChangeState(Normal);
CRect rect;
GetClientRect(&rect);
if (rect.PtInRect(point))
{
::PostMessage(GetParent()->GetSafeHwnd(), WM_SYSCOMMAND, GetDlgCtrlID(), 0);
}
}
CWnd::OnLButtonUp(nFlags, point);
}
void CAmoymanButton::OnMouseMove(UINT nFlags, CPoint point)
{
if (m_Enabled)
{
CRect rect;
GetClientRect(&rect);
if (rect.PtInRect(point))
{
ChangeState((GetKeyState(VK_LBUTTON) & 0x8000) > 0 ? Selected : Focus);
SetCapture();
}
else
{
ReleaseCapture();
ChangeState(Normal);
}
}
CWnd::OnMouseMove(nFlags, point);
}
void CAmoymanButton::ChangeState(int State)
{
if (m_Enabled)
{
if (m_State != State)
{
m_State = State;
RedrawWindow();
}
}
else
{
if (m_State != Disabled)
{
m_State = Disabled;
RedrawWindow();
}
}
}
void CAmoymanButton::Enabled(bool bEnabled)
{
m_Enabled = bEnabled;
ChangeState(Normal);
}
bool CAmoymanButton::Enabled(void)
{
return m_Enabled;
}
[解决办法]
看看我N早做的一个类（5楼）
BOOL Create(int Left, int Top, int Width, int Height, CWnd* pParentWnd, UINT nID, CImage& ButtonImage);
传入参数中只有一张图片（CImage& ButtonImage）
它是按钮的高度*宽度的四倍。
你说的应该是这样吧
