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双击启动 文件小图标修复

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This commit is contained in:
liufei
2021-12-21 16:52:31 +08:00
parent 8ee27e247b
commit 88af8324b9
12 changed files with 287 additions and 19 deletions
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45
Util/FileIcon.cs
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@@ -36,7 +36,7 @@ namespace GeekDesk.Util
public static BitmapImage GetBitmapImage(string filePath)
{
Icon ico;
Icon ico = null;
//选中文件中的图标总数
var iconTotalCount = PrivateExtractIcons(filePath, 0, 0, 0, null, null, 0, 0);
//用于接收获取到的图标指针
@@ -53,12 +53,20 @@ namespace GeekDesk.Util
{
ip = hIcons[0];
ico = Icon.FromHandle(ip);
if (IsMinOrTransparent(ico))
{
ico = null;
}
}
else if (GetBlurExts().Contains(ext))
if (ico == null && GetBlurExts().Contains(ext))
{
ico = Icon.ExtractAssociatedIcon(filePath);
if (IsMinOrTransparent(ico))
{
ico = null;
}
}
else
if (ico == null)
{
ip = GetJumboIcon(GetIconIndex(filePath));
ico = Icon.FromHandle(ip);
@@ -86,6 +94,36 @@ namespace GeekDesk.Util
return bmpImage.Clone();
}
private static bool IsMinOrTransparent(Icon ico)
{
Bitmap bm = ico.ToBitmap();
double w = bm.Width;
double h = bm.Height;
Color middleColor = bm.GetPixel((int)(w * 0.50), (int)(h * 0.50));
Color transparent = Color.FromArgb(0, 0, 0, 0);
//如果中间像素不为空 直接判断此icon不为空
if (middleColor != Color.Transparent && middleColor != transparent)
{
return false;
}
//判断中间一条横线像素 有不透明元素即判断 icon不为空
Color c;
int h2 = (int)h / 2;
for (int i=0; i<(int)w; i++)
{
c = bm.GetPixel(i, h2);
if (c!= Color.Transparent && c != transparent)
{
return false;
}
}
return true;
}
private static ImageCodecInfo GetEncoderInfo(String mimeType)
{
int j;
@@ -416,7 +454,6 @@ namespace GeekDesk.Util
int iOverlay,
ref int piIndex);
};
}
}

79
Util/FileUtil.cs
View File

@@ -2,7 +2,9 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
namespace GeekDesk.Util
@@ -10,6 +12,8 @@ namespace GeekDesk.Util
public class FileUtil
{
private static readonly string NO_PATH = ".*{.*}.*";
public static string GetTargetPathByLnk(string filePath)
{
try
@@ -21,7 +25,12 @@ namespace GeekDesk.Util
{
return null;
}
return shortcut.TargetPath;
string path = shortcut.TargetPath;
if (path==null || Regex.IsMatch(path, NO_PATH))
{
path = ParseShortcut(filePath);
}
return path;
}
#pragma warning disable CS0168 // 声明了变量“e”，但从未使用过
catch (Exception e)
@@ -30,5 +39,73 @@ namespace GeekDesk.Util
return null;
}
}
/*
UINT MsiGetShortcutTarget(
LPCTSTR szShortcutTarget,
LPTSTR szProductCode,
LPTSTR szFeatureId,
LPTSTR szComponentCode
);
*/
[DllImport("msi.dll", CharSet = CharSet.Auto)]
static extern int MsiGetShortcutTarget(string targetFile, StringBuilder productCode, StringBuilder featureID, StringBuilder componentCode);
public enum InstallState
{
NotUsed = -7,
BadConfig = -6,
Incomplete = -5,
SourceAbsent = -4,
MoreData = -3,
InvalidArg = -2,
Unknown = -1,
Broken = 0,
Advertised = 1,
Removed = 1,
Absent = 2,
Local = 3,
Source = 4,
Default = 5
}
public const int MaxFeatureLength = 38;
public const int MaxGuidLength = 38;
public const int MaxPathLength = 1024;
/*
INSTALLSTATE MsiGetComponentPath(
LPCTSTR szProduct,
LPCTSTR szComponent,
LPTSTR lpPathBuf,
DWORD* pcchBuf
);
*/
[DllImport("msi.dll", CharSet = CharSet.Auto)]
static extern InstallState MsiGetComponentPath(string productCode, string componentCode, StringBuilder componentPath, ref int componentPathBufferSize);
public static string ParseShortcut(string file)
{
StringBuilder product = new StringBuilder(MaxGuidLength + 1);
StringBuilder feature = new StringBuilder(MaxFeatureLength + 1);
StringBuilder component = new StringBuilder(MaxGuidLength + 1);
MsiGetShortcutTarget(file, product, feature, component);
int pathLength = MaxPathLength;
StringBuilder path = new StringBuilder(pathLength);
InstallState installState = MsiGetComponentPath(product.ToString(), component.ToString(), path, ref pathLength);
if (installState == InstallState.Local)
{
return path.ToString();
}
else
{
return null;
}
}
}
}

87
Util/Functions.cs Normal file
View File

@@ -0,0 +1,87 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace GeekDesk.Util
{
public class Functions
{
public static string GetShortcutTarget(string file)
{
try
{
if (System.IO.Path.GetExtension(file).ToLower() != ".lnk")
{
throw new Exception("Supplied file must be a .LNK file");
}
FileStream fileStream = File.Open(file, FileMode.Open, FileAccess.Read);
using (System.IO.BinaryReader fileReader = new BinaryReader(fileStream))
{
fileStream.Seek(0x14, SeekOrigin.Begin); // Seek to flags
uint flags = fileReader.ReadUInt32(); // Read flags
if ((flags & 1) == 1)
{ // Bit 1 set means we have to
// skip the shell item ID list
fileStream.Seek(0x4c, SeekOrigin.Begin); // Seek to the end of the header
uint offset = fileReader.ReadUInt16(); // Read the length of the Shell item ID list
fileStream.Seek(offset, SeekOrigin.Current); // Seek past it (to the file locator info)
}
long fileInfoStartsAt = fileStream.Position; // Store the offset where the file info
// structure begins
uint totalStructLength = fileReader.ReadUInt32(); // read the length of the whole struct
fileStream.Seek(0xc, SeekOrigin.Current); // seek to offset to base pathname
uint fileOffset = fileReader.ReadUInt32(); // read offset to base pathname
// the offset is from the beginning of the file info struct (fileInfoStartsAt)
fileStream.Seek((fileInfoStartsAt + fileOffset), SeekOrigin.Begin); // Seek to beginning of
// base pathname (target)
long pathLength = (totalStructLength + fileInfoStartsAt) - fileStream.Position - 2; // read
// the base pathname. I don't need the 2 terminating nulls.
char[] linkTarget = fileReader.ReadChars((int)pathLength); // should be unicode safe
var link = new string(linkTarget);
int begin = link.IndexOf("\0\0");
if (begin > -1)
{
int end = link.IndexOf("\\\\", begin + 2) + 2;
end = link.IndexOf('\0', end) + 1;
string firstPart = link.Substring(0, begin);
string secondPart = link.Substring(end);
return firstPart + secondPart;
}
else
{
return link;
}
}
}
catch
{
return "";
}
}
}
class Program
{
static void Main(string[] args)
{
if (args.Length == 0)
{
System.Console.WriteLine("Please try again with a file path");
}
else
{
System.Console.WriteLine("LNK File: " + args[0]);
System.Console.WriteLine("LNK Path: " + Functions.GetShortcutTarget(args[0]));
}
}
}
}