关于FreeImage库的问题（怎么把HBITMAP转换成FIBITMAP）

[verywzm]

使用的VC6.0

截图后，得到HBITMAP句柄，怎么想用FreeImage库保存为JPG图片。想使用：
FreeImage_Save(FIF_JPEG,pBitmap,"c:\\capture\\try.jpg",50)

但是pBitmap必须是FIBITMAP类型，怎么把HBITMAP转换成FIBITMAP来着？搜索到一个英文的做法，不过不太会改，谁帮我看看，谢谢！

==========以下是搜索到的=============

//How do I convert a HBITMAP to a FreeImage image ?

HBITMAP hbmp;
// ...
// the following code assumes that you have a valid HBITMAP loaded into the memory
FIBITMAP *dib = NULL;
if(hbmp) { 

BITMAP bm;
GetObject(hbmp, sizeof(BITMAP), (LPSTR) &bm);
dib = FreeImage_Allocate(bm.bmWidth, bm.bmHeight, bm.bmBitsPixel);
// The GetDIBits function clears the biClrUsed and biClrImportant BITMAPINFO members (dont't know why) 
// So we save these infos below. This is needed for palettized images only. 
int nColors = FreeImage_GetColorsUsed(dib);
HDC dc = GetDC(NULL);
int Success = GetDIBits(dc, hbmp, 0, FreeImage_GetHeight(dib), 
FreeImage_GetBits(dib), FreeImage_GetInfo(dib), DIB_RGB_COLORS);
ReleaseDC(NULL, dc);
// restore BITMAPINFO members
FreeImage_GetInfoHeader(dib)->biClrUsed = nColors;
FreeImage_GetInfoHeader(dib)->biClrImportant = nColors;

}
// ...
// don't forget to call FreeImage_Unload when you no longer need the dib
FreeImage_Unload(dib);

[sd6814466]

FIBITMAP *dib = NULL;
if(hbmp) {

BITMAP bm;
GetObject(hbmp, sizeof(BITMAP), (LPSTR) &bm);
dib = FreeImage_Allocate(bm.bmWidth, bm.bmHeight, bm.bmBitsPixel);
这个dib不是FIBITMAP *么？
不就得到了？