我正在开发一些Windows Embedded Compact 7的Windows窗体应用程序,它使用.net紧凑框架和c#Smart Device项目类型模仿桌面外壳。我用SHGetFileInfo
WinAPI的函数来获取从exe文件关联的图标,这里是我下面的代码:在.net紧凑框架中从exe获取图标
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct SHFILEINFO
{
public IntPtr hIcon;
public IntPtr iIcon;
public uint dwAttributes;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public string szDisplayName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
public string szTypeName;
public SHFILEINFO(bool setDefaults)
{
hIcon = IntPtr.Zero;
iIcon = IntPtr.Zero;
dwAttributes = 0;
szDisplayName = "";
szTypeName = "";
}
}
public class Win32
{
public const uint SHGFI_ICON = 0x000000100;
public const uint SHGFI_LARGEICON = 0x00000000;
public const uint SHGFI_SMALLICON = 0x00000001;
[DllImport("coredll.dll")]
public static extern IntPtr SHGetFileInfo(string pszPath,
int dwFileAttributes,
ref SHFILEINFO psfi,
uint cbSizeFileInfo,
uint uFlags);
}
,然后我把从这里这个函数:
private static Icon ExtractIconFromExe(string targetPath)
{
IntPtr hImgLarge;
var shinfo = new SHFILEINFO();
hImgLarge = Win32.SHGetFileInfo(targetPath,
0,
ref shinfo,
(uint)Marshal.SizeOf(shinfo),
Win32.SHGFI_ICON);
var icon = Icon.FromHandle(shinfo.hIcon);
return icon;
}
它的正常工作在我的Windows 7旗舰版(当然使用shell32.dll而不是coredll.dll),但是当我尝试在Windows Embedded或智能设备仿真器上运行此代码时,我在此行中有无意义的例外:Icon.FromHandle(shinfo.hIcon)
。有人知道如何解决我的问题吗?