Graphics.DrawLine(const Pen*, const Point, const Point) method

项目
03/07/2012

Applies to: desktop apps only

The Graphics::DrawLine method draws a line that connects two points.

Syntax

Status DrawLine(
  [in]       const Pen *pen,
  [in, ref]  const Point &pt1,
  [in, ref]  const Point &pt2
);

Parameters

pen [in]
Type: const Pen*

Pointer to a pen that is used to draw the line.
pt1 [in, ref]
Type: const Point

Reference to a Point object that specifies the start of the line.
pt2 [in, ref]
Type: const Point

Reference to a Point object that specifies the end of the line.

Return value

Type:

Type: Status****

If the method succeeds, it returns Ok, which is an element of the Status enumeration.

If the method fails, it returns one of the other elements of the Status enumeration.

Examples

The following example draws a line.

VOID
Example_DrawLine(HDC hdc)
{
   Graphics graphics(hdc);

   // Create a Pen object.
   Pen blackPen(Color(255, 0, 0, 0), 3);

   // Create two Point objects that define the line.
   Point point1(100, 100);
   Point point2(500, 100);

   // Draw the line.
   graphics.DrawLine(&blackPen, point1, point2);

}

Requirements

Minimum supported client	Windows XP, Windows 2000 Professional
Minimum supported server	Windows 2000 Server
Product	GDI+ 1.0
Header	Gdiplusgraphics.h (include Gdiplus.h)
Library	Gdiplus.lib
DLL	Gdiplus.dll

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