VB.NET获取文件默认图标的方法
本文实例讲述了VB.NET获取文件默认图标的方法。分享给大家供大家参考。具体如下：
该段代码帮助你获取计算机上的任何文件的默认图标，使用Shell32.dll。
PrivateStructureSHFILEINFO PublichIconAsIntPtr PubliciIconAsInteger PublicdwAttributesAsInteger <MarshalAs(UnmanagedType.ByValTStr,SizeConst:=260)>_ PublicszDisplayNameAsString <MarshalAs(UnmanagedType.ByValTStr,SizeConst:=80)>_ PublicszTypeNameAsString EndStructure PrivateDeclareAutoFunctionSHGetFileInfoLib"shell32.dll"_ (ByValpszPathAsString,_ ByValdwFileAttributesAsInteger,_ ByRefpsfiAsSHFILEINFO,_ ByValcbFileInfoAsInteger,_ ByValuFlagsAsInteger)AsIntPtr PrivateConstSHGFI_ICON=&H100 PrivateConstSHGFI_SMALLICON=&H1 PrivateConstSHGFI_LARGEICON=&H0 PrivatenIndex=0 PrivatehImgLargeAsIntPtr'Thehandletothesystemimagelist. PrivateFunctionGetLargeIcon(ByValFilePathAsString)AsSystem.Drawing.Icon DimfNameAsString DimshinfoAsSHFILEINFO shinfo=NewSHFILEINFO() shinfo.szDisplayName=NewString(Chr(0),260) shinfo.szTypeName=NewString(Chr(0),80) fName=FilePath hImgLarge=SHGetFileInfo(fName,0, shinfo,Marshal.SizeOf(shinfo), SHGFI_ICONOrSHGFI_LARGEICON) DimmyIconAsSystem.Drawing.Icon myIcon=System.Drawing.Icon.FromHandle(shinfo.hIcon) ReturnmyIcon EndFunction PrivateFunctionGetSmallIcon(ByValFilePathAsString)AsSystem.Drawing.Icon DimfNameAsString DimshinfoAsSHFILEINFO shinfo=NewSHFILEINFO() shinfo.szDisplayName=NewString(Chr(0),260) shinfo.szTypeName=NewString(Chr(0),80) fName=FilePath hImgLarge=SHGetFileInfo(fName,0, shinfo,Marshal.SizeOf(shinfo), SHGFI_ICONOrSHGFI_SMALLICON) DimmyIconAsSystem.Drawing.Icon myIcon=System.Drawing.Icon.FromHandle(shinfo.hIcon) ReturnmyIcon EndFunction
希望本文所述对大家的VB.NET程序设计有所帮助。