将整个文件复制到剪贴板，注意是文件不是文本内容，麻烦用c++实现（最好可以别用MFC），谢谢了！

#include
#include
#include

//复制文件到剪贴板
//没有加入错误判断，请自行修改
int CopyFileToClipboard(char szFileName[]);

int main()
{
CopyFileToClipboard("D:\\user.txt");

return 0;
}

int CopyFileToClipboard(char szFileName[])
{
UINT uDropEffect;
HGLOBAL hGblEffect;
LPDWORD lpdDropEffect;
DROPFILES stDrop;

HGLOBAL hGblFiles;
LPSTR lpData;

uDropEffect = RegisterClipboardFormat("Preferred DropEffect");
hGblEffect = GlobalAlloc(GMEM_ZEROINIT | GMEM_MOVEABLE | GMEM_DDESHARE,sizeof(DWORD));
lpdDropEffect = (LPDWORD)GlobalLock(hGblEffect);
*lpdDropEffect = DROPEFFECT_COPY;//复制; 剪贴则用DROPEFFECT_MOVE
GlobalUnlock(hGblEffect);

stDrop.pFiles = sizeof(DROPFILES);
stDrop.pt.x = 0;
stDrop.pt.y = 0;
stDrop.fNC = FALSE;
stDrop.fWide = FALSE;

hGblFiles = GlobalAlloc(GMEM_ZEROINIT | GMEM_MOVEABLE | GMEM_DDESHARE,\
sizeof(DROPFILES)+strlen(szFileName)+2);
lpData = (LPSTR)GlobalLock(hGblFiles);
memcpy(lpData,&stDrop,sizeof(DROPFILES));
strcpy(lpData+sizeof(DROPFILES),szFileName);
GlobalUnlock(hGblFiles);

OpenClipboard(NULL);
EmptyClipboard();
SetClipboardData(CF_HDROP,hGblFiles);
SetClipboardData(uDropEffect,hGblEffect);
CloseClipboard();

return 1;
}