FillRect（）和FillSolidRect（）

void FillRect( 
LPCRECT lpRect, 
CBrush* pBrush );

 

Parameters

lpRect

Pointer to a RECT structure that contains the logical coordinates of the rectangle to fill. You can also pass a CRect object for this parameter.

pBrush

Identifies the brush used to fill the rectangle.

void CXXX::OnPaint() 
{
	CPaintDC dc(this);
	CRect rct;
        CBrush m_brBack; 
        m_brBack.CreateSolidBrush(RGB（255，0，0））；
	GetClientRect(&rct);
	dc.FillRect(&rct,&m_brBack);
}

 

 

 

void FillSolidRect( 
LPCRECT lpRect, 
COLORREF clr );

void FillSolidRect( 
int x, 
int y, 
int cx, 
int cy, 
COLORREF clr );

 

Parameters

lpRect

The bounding rectangle in logical units. You can pass a pointer to a RECT data structure or a CRect object for this parameter.

clr

The color to use to fill the rectangle.

x

The logical x-coordinate of the upper-left corner of the rectangle.

y

The logical y-coordinate of the upper-left corner of the destination rectangle.

cx

The width of the rectangle.

cy

The height of the rectangle.

void CXXX::OnPaint() 
{
        CRect  m_rtThis;
        GetClientRect(&rct);
	CPaintDC dc(this);
	dc.SetBkMode(TRANSPARENT);
	dc.FillSolidRect(&m_rtThis, RGB(255,0,0));
}

总之：FillRect（）要用画刷进行刷区域，FillSolidRect（）直接指定颜色刷区域就可以