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.

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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.

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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