复制、粘贴功能是一件很简单的事情，但怎样将GIS图形粘贴到word中呢？最简单的思路还是将GIS图形保存为Image形式，发送到剪贴板，再粘贴到Word。但如果Image格式采用栅格的格式，如BMP或JPEG，则粘贴后在Word中拉伸时，效果会受到影响，比较合适的格式是采用WMF或EMF这种矢量的格式。将Visio格式复制到Word中时，可以看到就是这种效果，而且文字还是可以编辑的。好，下面我们就看看怎样实现这个功能。
第一步当然是将图形复制为一个MetaFile对象：
public
Metafile GetGeometryMetafile(ISymbol pSymbol, IGeometry pGeometry)
{
//
先获取一个IDisplayTransformation对象
IDisplayTransformation pDisTrans
=
new
DisplayTransformationClass();
IEnvelope pEnv
=
pGeometry.Envelope;
Rectangle rect
=
new
Rectangle(
0
,
0
,
500
,
500
);
tagRECT r;
r.left
=
rect.Left;
r.right
=
rect.Right;
r.bottom
=
rect.Bottom;
r.top
=
rect.Top;
pDisTrans.set_DeviceFrame(
ref
r);
pDisTrans.Bounds
=
pEnv;
pDisTrans.Resolution
=
72
;
pDisTrans.ReferenceScale
=
1.0
;
pDisTrans.ScaleRatio
=
1
;
//
创建WMF
MemoryStream ms
=
new
MemoryStream();
Graphics g
=
CreateGraphics();
IntPtr hdc
=
g.GetHdc();
Metafile mf
=
new
Metafile(ms, hdc,
new
Rectangle(
0
,
0
,
500
,
500
),MetafileFrameUnit.Pixel, EmfType.EmfPlusDual);
g.ReleaseHdc(hdc);
g.Dispose();
g
=
Graphics.FromImage(mf);
g.FillRectangle(
new
SolidBrush(Color.White),
new
Rectangle(
0
,
0
,
500
,
500
));
pSymbol.SetupDC((
int
)g.GetHdc(), pDisTrans);
pSymbol.Draw(pGeometry);
pSymbol.ResetDC();
g.ReleaseHdc();
g.DrawString(
"
by watson
"
,
this
.Font,
new
SolidBrush(Color.Blue),
new
PointF(
20
,
20
));
g.Save();
g.Dispose();
return
mf;
 }
第二步：发送到剪贴板：
IDataObject data
=
new
DataObject();
data.SetData(DataFormats.MetafilePict, mf);
Clipboard.SetDataObject(data,
true
);
测试 .... 什么，不成功？？
估计是.net不支持将metafile格式复制到剪贴板吧。
于是，用于搜索引擎，搜索一翻，在某国外论坛找到解决方案：
public
class
ClipboardMetafileHelper
{
[DllImport(
"
user32.dll
"
)]
static
extern
bool
OpenClipboard(IntPtr hWndNewOwner);
[DllImport(
"
user32.dll
"
)]
static
extern
bool
EmptyClipboard();
[DllImport(
"
user32.dll
"
)]
static
extern
IntPtr SetClipboardData(
uint
uFormat, IntPtr hMem);
[DllImport(
"
user32.dll
"
)]
static
extern
bool
CloseClipboard();
[DllImport(
"
gdi32.dll
"
)]
static
extern
IntPtr CopyEnhMetaFile(IntPtr hemfSrc, IntPtr hNULL);
[DllImport(
"
gdi32.dll
"
)]
static
extern
bool
DeleteEnhMetaFile(IntPtr hemf);
//
Metafile mf is set to an invalid state inside this function
static
public
bool
PutEnhMetafileOnClipboard(IntPtr hWnd, Metafile mf)
{
bool
bResult
=
false
;
IntPtr hEMF, hEMF2;
hEMF
=
mf.GetHenhmetafile();
//
invalidates mf
if
(
!
hEMF.Equals(
new
IntPtr(
0
)))
{
hEMF2
=
CopyEnhMetaFile(hEMF,
new
IntPtr(
0
));
if
(
!
hEMF2.Equals(
new
IntPtr(
0
)))
{
if
(OpenClipboard(hWnd))
{
if
(EmptyClipboard())
{
IntPtr hRes
=
SetClipboardData(
14
/**/
/*
CF_ENHMETAFILE
*/
, hEMF2);
bResult
=
hRes.Equals(hEMF2);
CloseClipboard();
 }
}
}
DeleteEnhMetaFile(hEMF);
}
return
bResult;
}
}
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