F
#ifdef #define A
pDC->TextOut(10, 10, "Hello World");
CString mbuf;
int x = 10;
mbuf.Format( "X = %d, in hex X = 0x%x", x, x );
pDC->TextOut( 50, 50, mbuf );
#endif
#ifdef B
CRect rect;
GetClientRect( &rect );
int x1 = rect.TopLeft().x;
int y1 = rect.TopLeft().y;
int x2 = rect.BottomRight().x;
int y2 = rect.BottomRight().y;
pDC->MoveTo( x1, y1 );
pDC->LineTo( x2, y2 );
pDC->MoveTo( x1, y2 );
pDC->LineTo( x2, y1 );
#endif
#ifdef C
CRect rect;
GetClientRect( &rect );
CPoint p1 = rect.TopLeft();
CPoint p2 = rect.BottomRight();
CPoint p3;
p3.x = p1.x;
p3.y = p2.y;
CPoint p4;
p4.x = p2.x;
p4.y = p1.y;
pDC->MoveTo( p1 );
pDC->LineTo( p2 );
pDC->MoveTo( p3);
pDC->LineTo( p4 );
#endif
#ifdef D
CPen aPenR;
aPenR.CreatePen( PS_SOLID, 2, RGB(255,0,0) );
CPen* pOldPen = pDC->SelectObject( &aPenR );
CRect rect;
GetClientRect( &rect );
int x1 = rect.TopLeft().x;
int y1 = rect.TopLeft().y;
int x2 = rect.BottomRight().x;
int y2 = rect.BottomRight().y;
pDC->MoveTo( x1, y1 );
pDC->LineTo( x2, y2 );
CPen aPenB;
aPenB.CreatePen( PS_SOLID, 10, RGB(0, 0, 255) );
pDC->SelectObject( &aPenB );
pDC->MoveTo( x1, y2 );
pDC->LineTo( x2, y1 );
pDC->SelectObject( pOldPen );
#endif
#ifdef E
CBrush aBrush0(RGB(255,0,0));
CBrush* pOldBrush = pDC->SelectObject(&aBrush0);
pDC->Rectangle(10, 10, 100, 100 );
CBrush aBrush1(HS_DIAGCROSS, RGB(255,0,0));
pDC->SelectObject(&aBrush1);
pDC->Rectangle(100, 100, 200, 200 );
CBrush aBrush2;
aBrush2.CreateHatchBrush(HS_CROSS, RGB(0,255,0) );
pDC->SelectObject(&aBrush2);
pDC->Rectangle(300, 100, 400, 200 );
pDC->SelectObject(pOldBrush);
#endif
#ifdef F
int y = 50;
int x = 10;
pDC->MoveTo( x, y );
for( ; x<400; x++)
{
y = rand() % 100 50;
+ pDC->LineTo( x,y);
}
#endif
#ifdef G
/*
MM_HIENGLISH: Each logical unit is converted to 0.001
inch. Positive x is to the right; positive y is up.
MM_HIMETRIC: Each logical unit is converted to 0.01
millimeter. Positive x is to the right; positive y is up.
MM_ISOTROPIC: Logical units are converted to arbitrary
units with equally scaled axes; that is, 1
unit along the x-axis is equal to 1 unit along
the y-axis. Use the SetWindowExt and SetViewportExt
member functions to specify the desired units
and the orientation of the axes. GDI makes
adjustments as necessary to ensure that the x
and y units remain the same size.
MM_LOENGLISH: Each logical unit is converted to 0.01 inch.
Positive x is to the right; positive y is up.
MM_LOMETRIC: Each logical unit is converted to 0.1 millimeter.
Positive x is to the right; positive y is up.
MM_TEXT: Each logical unit is converted to 1 device pixel.
Positive x is to the right; positive y is down.
MM_TWIPS: Each logical unit is converted to 1/20 of a point.
(Because a point is 1/72 inch, a twip is 1/1440 inch.)
Positive x is to the right; positive y is up.
*/
pDC->SetMapMode( MM_TEXT );
pDC->MoveTo( 10, 100 );
pDC->LineTo( 100, 100 );...