高分求取磁性窗体的vc源码

Question

在
http://tech521.com/show_data.asp?tid=1534
有一个DELPHI的
不知道能否翻译成C
你看看吧
或许能找出些思路
8－）

Answer 1

这个函数可使窗体自动靠边，希望对你有所启发
BOOL AdjustPos(CRect* lpRect)
{//自动靠边
int iSX=GetSystemMetrics(SM_CXFULLSCREEN);
int iSY=GetSystemMetrics(SM_CYFULLSCREEN);
RECT rWorkArea;
BOOL bResult = SystemParametersInfo(SPI_GETWORKAREA,  
sizeof(RECT),
&rWorkArea,
0);    
CRect rcWA;
if(!bResult)
{//如果调用不成功就利用GetSystemMetrics获取屏幕面积
rcWA=CRect(0,0,iSX,iSY);
}
else
rcWA=rWorkArea;
 
int iX=lpRect->left;
int iY=lpRect->top;
 
if(iX < rcWA.left + DETASTEP && iX!=rcWA.left)
{//调整左
//pWnd->SetWindowPos(NULL,rcWA.left,iY,0,0,SWP_NOSIZE);
lpRect->OffsetRect(rcWA.left-iX,0);
AdjustPos(lpRect);
return TRUE;
}
if(iY < rcWA.top + DETASTEP && iY!=rcWA.top)
{//调整上
//pWnd->SetWindowPos(NULL ,iX,rcWA.top,0,0,SWP_NOSIZE);
lpRect->OffsetRect(0,rcWA.top-iY);
AdjustPos(lpRect);
return TRUE;
}
if(iX + lpRect->Width() > rcWA.right - DETASTEP && iX !=rcWA.right-lpRect->Width())
{//调整右
//pWnd->SetWindowPos(NULL ,rcWA.right-rcW.Width(),iY,0,0,SWP_NOSIZE);
lpRect->OffsetRect(rcWA.right-lpRect->right,0);
AdjustPos(lpRect);
return TRUE;
}
if(iY + lpRect->Height() > rcWA.bottom - DETASTEP && iY !=rcWA.bottom-lpRect->Height())
{//调整下
//pWnd->SetWindowPos(NULL ,iX,rcWA.bottom-rcW.Height(),0,0,SWP_NOSIZE);
lpRect->OffsetRect(0,rcWA.bottom-lpRect->bottom);
return TRUE;
}
return FALSE;
}

Answer 2

下面的代码可以看懂吗？有问题给我留言好了void CFashionWnd::OnMoving(UINT nSide, LPRECT lpRect)
{
long ScreenX,ScreenY;
CRect WndRect;
CRect RealRect;
CPoint CursorPos;
int nSnaping=0; ScreenX=GetSystemMetrics(SM_CXSCREEN);
ScreenY=GetSystemMetrics(SM_CYSCREEN);
GetCursorPos(&CursorPos);
GetWindowRect(&WndRect); RealRect.left = CursorPos.x - m_CursorOffset.cx;
RealRect.right = RealRect.left + (WndRect.right - WndRect.left);
RealRect.top = CursorPos.y - m_CursorOffset.cy;
RealRect.bottom = RealRect.top + (WndRect.bottom - WndRect.top); //left edge
if(abs(RealRect.left) < m_SnapDist)
{
lpRect->left = 0;
lpRect->right = (WndRect.right - WndRect.left);
nSnaping=1;
}
else
{
lpRect->left = RealRect.left;
lpRect->right = RealRect.right;
}

//top edge
if(abs(RealRect.top) < m_SnapDist)
{
lpRect->top = 0;
lpRect->bottom = (WndRect.bottom - WndRect.top);
nSnaping=2;
}
else
{
lpRect->top = RealRect.top;
lpRect->bottom = RealRect.bottom;
} //right edge
if(abs(ScreenX - RealRect.right) < m_SnapDist)
{
lpRect->right = ScreenX;
lpRect->left = lpRect->right - (WndRect.right - WndRect.left);
nSnaping=1;
}
else
{
if(nSnaping!=1 && nSnaping!=2)
{
lpRect->left = RealRect.left;
lpRect->right = RealRect.right;
}
} //bottom edge
if(abs(ScreenY - RealRect.bottom) < m_SnapDist)
{
lpRect->bottom = ScreenY;
lpRect->top = lpRect->bottom - (WndRect.bottom - WndRect.top);
nSnaping=2;
}
else
{
if(nSnaping!=1 && nSnaping!=2)
{
lpRect->top = RealRect.top;
lpRect->bottom = RealRect.bottom;
}
}
}

Answer 3

注：m_SnapDist为自定义的吸引距离，随便啦