如何将一个图标资源存为一个图标文件（.ico）？

IconNum = ExtractIconEx(IconFile,-1,IconLarge,IconSmall,0);
得到IconFile中图标个数
ExtractIconEx(IconFile,IconIndex,IconLarge,IconSmall,IconNum);
IconLarge和IconSmall分别得到大小图标句柄
Asima,
  得到句柄后又该怎办？
我也是最近在写一个程序用到这个东西
下边是我的代码
注意：现在还有一个问题就是当系统色彩设置为16位色（不是16色）时,保存的图标就有问题，问题的原因是这样的：
我的代码中通过图标句柄得到的图标信息iconInfo
然后通过iconInfo.hbmColor得到位图，这时位图色彩为16位色
图标中不支持这么高的色彩
我现在不知怎样才能得到低于系统色彩设置的位图
所以我把系统色彩设置为256色，经过测试这种情况下没有问题
注意调用该函数时应传递一个CDC的参数，可以将窗体的客户区DC传给它typedef struct tagICONDIRENTRY
{
BYTE bWidth;        //图标宽度
BYTE bHeight;       //图标高度
BYTE bColorCount;   //图标颜色数
BYTE bReserved;     //保留为0
WORD wPlanes;       //目标设备平面数，为1
WORD wBitCount;     //图标中图像像素字节总数=
                    //位图信息+调色板+彩色位图位值+掩码位图位值
DWORD dwBytesInRes; //资源文件大小
DWORD dwImageOffset;//图标的图像像素离文件头的偏移量
} ICONDIRENTRY;         //图标信息结构typedef struct tagICONHEADER
{
WORD idReserved;    //保留为0
WORD idType;        //图标文件类型为1
WORD idCount;       //该图标文件中保存的图标个数
} ICONHEADER;           //图标文件头信息//保存图标的函数
void SaveIconFile(HDC h_DC,CString IconFileName,HICON *h_Icon,int IconCount=2);
void SaveIconFile(HDC h_DC,CString IconSFile,CString IconDFile);void SaveIconFile(HDC h_DC,CString IconSFile,CString IconDFile)
{
HICON h_Icon[2];
//得到文件中的图标个数
int IconCount = ExtractIconEx(IconSFile,-1,NULL,NULL,0);
for(int iconIndex=0;iconIndex<IconCount;iconIndex++)
{
ExtractIconEx(IconSFile,iconIndex,h_Icon,h_Icon+1,IconCount);
CString IconFileName;
IconFileName.Format("%d",iconIndex);
IconFileName=IconDFile+IconFileName+".ico";
if(h_Icon[0] && h_Icon[1])
SaveIconFile(h_DC,IconFileName,h_Icon);
else if(h_Icon[0])
SaveIconFile(h_DC,IconFileName,h_Icon,1);
else if(h_Icon[1])
SaveIconFile(h_DC,IconFileName,h_Icon+1,1);
}
}void SaveIconFile(HDC h_DC,CString IconFileName,HICON *h_Icon,int IconCount)
{
ICONHEADER iconHeader;
iconHeader.idReserved = 0;
iconHeader.idType = 1;
iconHeader.idCount = IconCount;

ICONDIRENTRY *idEntries=new ICONDIRENTRY[IconCount];
BYTE **iconAndCopy=new BYTE*[IconCount];
BYTE **iconXorCopy=new BYTE*[IconCount];
DWORD *sizeAnd =new DWORD[IconCount];
DWORD *sizeXor =new DWORD[IconCount];
BITMAPINFOHEADER* bmpHeader=new BITMAPINFOHEADER[IconCount];
RGBQUAD **rgbQuad=new RGBQUAD*[IconCount];
int *rgbNum=new int[IconCount];
for (int iconIndex=0;iconIndex<IconCount;iconIndex++)
{
//提取图标信息
ICONINFO iconInfo;
GetIconInfo(h_Icon[iconIndex],&iconInfo);

//得到图标的彩色位图合掩码位图信息
CBitmap  m_bitmap;
CBitmap* p_bitmapXor=m_bitmap.FromHandle(iconInfo.hbmColor);
CBitmap* p_bitmapAnd=m_bitmap.FromHandle(iconInfo.hbmMask);
BITMAP bitmapAnd,bitmapXor;
p_bitmapXor->GetBitmap(&bitmapXor);
p_bitmapAnd->GetBitmap(&bitmapAnd);

//得到彩色位图和掩码位图的象素位值
sizeXor[iconIndex]=bitmapXor.bmHeight * bitmapXor.bmWidthBytes;
sizeAnd[iconIndex]=bitmapAnd.bmHeight * bitmapAnd.bmWidthBytes;
BYTE *iconXor=new BYTE[sizeXor[iconIndex]];
BYTE *iconAnd=new BYTE[sizeAnd[iconIndex]];
iconXorCopy[iconIndex]=new BYTE[sizeXor[iconIndex]];
iconAndCopy[iconIndex]=new BYTE[sizeAnd[iconIndex]];
p_bitmapXor->GetBitmapBits(sizeXor[iconIndex],iconXor);
p_bitmapAnd->GetBitmapBits(sizeAnd[iconIndex],iconAnd);

//按行扫描倒置位图位值
for(int line=0;line<bitmapXor.bmHeight;line++)
for(int col=0;col<bitmapXor.bmWidthBytes;col++)
     iconXorCopy[iconIndex][line*bitmapXor.bmWidthBytes+col]=
iconXor[(bitmapXor.bmHeight-line-1)*bitmapXor.bmWidthBytes+col];

for(line=0;line<bitmapAnd.bmHeight;line++)
for(int col=0;col<bitmapAnd.bmWidthBytes;col++)
iconAndCopy[iconIndex][line*bitmapAnd.bmWidthBytes+col]=
      iconAnd[(bitmapAnd.bmHeight-line-1)*bitmapAnd.bmWidthBytes+col];

//释放内存
if (iconXor) delete [] iconXor;
if (iconAnd) delete [] iconAnd; //设置位图信息
bmpHeader[iconIndex].biSize = sizeof(BITMAPINFOHEADER);
bmpHeader[iconIndex].biWidth = bitmapXor.bmWidth;
bmpHeader[iconIndex].biHeight = bitmapXor.bmHeight*2;
bmpHeader[iconIndex].biPlanes = bitmapXor.bmPlanes;
bmpHeader[iconIndex].biBitCount = bitmapXor.bmBitsPixel;
bmpHeader[iconIndex].biCompression = 0;
bmpHeader[iconIndex].biSizeImage = sizeXor[iconIndex];
bmpHeader[iconIndex].biXPelsPerMeter = 0;
bmpHeader[iconIndex].biYPelsPerMeter = 0;
bmpHeader[iconIndex].biClrUsed = 0;
bmpHeader[iconIndex].biClrImportant = 0;

//获取颜色数
switch(bitmapXor.bmBitsPixel)
{
case 1:  rgbNum[iconIndex]=1;   break;
case 4:  rgbNum[iconIndex]=16;  break;
case 8:  rgbNum[iconIndex]=256; break;
//case 16: rgbNum[iconIndex]=65536;break;
default: rgbNum[iconIndex]=16;
}

//得到系统调色板信息
PALETTEENTRY *palette=new PALETTEENTRY[rgbNum[iconIndex]];
GetSystemPaletteEntries(h_DC,0,rgbNum[iconIndex],palette);
//设置位图调色板信息
rgbQuad[iconIndex]=new RGBQUAD[rgbNum[iconIndex]];
for(int i=0;i<rgbNum[iconIndex];i++)
{
rgbQuad[iconIndex][i].rgbRed =palette[i].peRed;
rgbQuad[iconIndex][i].rgbGreen =palette[i].peGreen;
rgbQuad[iconIndex][i].rgbBlue =palette[i].peBlue;
rgbQuad[iconIndex][i].rgbReserved =palette[i].peFlags;
}
//释放系统调色板所占内存
if (palette) delete[] palette; //设置图标信息
idEntries[iconIndex].bWidth =(BYTE)bitmapXor.bmWidth ;
idEntries[iconIndex].bHeight=(BYTE)bitmapXor.bmHeight;
idEntries[iconIndex].bColorCount =(BYTE)bitmapXor.bmBitsPixel;
idEntries[iconIndex].bReserved = 0;
idEntries[iconIndex].wPlanes =bitmapXor.bmPlanes ;
idEntries[iconIndex].wBitCount = 0;
idEntries[iconIndex].dwBytesInRes =sizeof(BITMAPINFOHEADER)+rgbNum[iconIndex]*sizeof(RGBQUAD)+sizeXor[iconIndex]+sizeAnd[iconIndex];
if (iconIndex)
idEntries[iconIndex].dwImageOffset =
idEntries[iconIndex-1].dwImageOffset+
sizeof(BITMAPINFOHEADER)+
rgbNum[iconIndex-1]*sizeof(RGBQUAD)+
sizeXor[iconIndex-1]+sizeAnd[iconIndex];
else
idEntries[iconIndex].dwImageOffset =sizeof(ICONHEADER)+sizeof(ICONDIRENTRY)*IconCount;
} CFile file;
if(file.Open(IconFileName,CFile::modeCreate and CFile::modeWrite))
{
//写图标文件头
file.Write((void*)&iconHeader,sizeof(ICONHEADER));
//写图标目录
for(iconIndex=0;iconIndex<IconCount;iconIndex++)
file.Write((void*)&idEntries[iconIndex],sizeof(ICONDIRENTRY));

for(iconIndex=0;iconIndex<IconCount;iconIndex++)
{
//写图标位图信息
file.Write((void*)&bmpHeader[iconIndex],sizeof(BITMAPINFOHEADER));
//写位图调色板
file.Write((void*)rgbQuad[iconIndex],rgbNum[iconIndex]*sizeof(RGBQUAD));
//写彩色位图
file.Write(iconXorCopy[iconIndex],sizeXor[iconIndex]);
//写掩码位图
file.Write(iconAndCopy[iconIndex],128);//sizeAnd[iconIndex]);
}

//关闭文件
file.Close();
}
//释放内存
for(iconIndex=0;iconIndex<IconCount;iconIndex++)
{
if (rgbQuad[iconIndex])     delete [] rgbQuad[iconIndex];
if (iconXorCopy[iconIndex]) delete [] iconXorCopy[iconIndex];
if (iconAndCopy[iconIndex]) delete [] iconAndCopy[iconIndex];
}
if (bmpHeader)   delete [] bmpHeader;
    if (idEntries)   delete [] idEntries;
if (sizeAnd)     delete [] sizeAnd;
if (sizeXor)     delete [] sizeXor;
if (iconAndCopy) delete [] iconAndCopy;
if (iconXorCopy) delete [] iconXorCopy;
if (rgbQuad)     delete [] rgbQuad;
if (rgbNum)      delete [] rgbNum;
}

调试易

如何将一个图标资源存为一个图标文件（.ico）？

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