Tipp-Upload: VB.NET 0465: Test-Upload
von Henrik Ilgen
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test
Der Vorschlag wurde erstellt am: 02.12.2019 19:59.
Die letzte Aktualisierung erfolgte am 02.12.2019 19:59.
Beschreibung
Test-Upload von svenscherners TU
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Verwendete API-Aufrufe: |
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' Dieser Source stammt von http://www.activevb.de ' und kann frei verwendet werden. Für eventuelle Schäden ' wird nicht gehaftet. ' Um Fehler oder Fragen zu klären, nutzen Sie bitte unser Forum. ' Ansonsten viel Spaß und Erfolg mit diesem Source! ' ' Beachten Sie, das vom Designer generierter Code hier ausgeblendet wird. ' In den Zip-Dateien ist er jedoch zu finden. ' ---------- Anfang Projektgruppe Icon_changer.sln ---------- ' --------- Anfang Projektdatei Icon_changer.vbproj --------- ' ------------- Anfang Datei frm_icon_changer.vb ------------- Imports System.Security.Principal Public Class frm_icon_changer Dim file_path As String = "" Dim icon_path As String = "" Public Function IsUserAdministrator() As Boolean Dim isAdmin As Boolean Try Dim user As WindowsIdentity = WindowsIdentity.GetCurrent() Dim principal As WindowsPrincipal = New WindowsPrincipal(user) isAdmin = principal.IsInRole(WindowsBuiltInRole.Administrator) Catch ex As UnauthorizedAccessException isAdmin = False MessageBox.Show(ex.Message) Catch ex As Exception isAdmin = False MessageBox.Show(ex.Message) End Try Return isAdmin End Function Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click If IsUserAdministrator() Then OpenFileDialog_exe_path.ShowDialog() If OpenFileDialog_exe_path.FileName = "" Then MsgBox("Sie müssen eine Datei auswählen!", MsgBoxStyle.Critical) Exit Sub Else file_path = OpenFileDialog_exe_path.FileName OpenFileDialog_icon_path.ShowDialog() If OpenFileDialog_icon_path.FileName = "" Then MsgBox("Sie müssen ein Icon auswählen!", MsgBoxStyle.Critical) Exit Sub Else icon_path = OpenFileDialog_icon_path.FileName IconInjector.InjectIcon(file_path, icon_path) End If End If Else MsgBox("Sie müssen die Anwendung als Administrator starten!", MsgBoxStyle.Critical) End If End Sub End Class ' -------------- Ende Datei frm_icon_changer.vb -------------- ' --------------- Anfang Datei IconInjector.vb --------------- Imports System.Runtime.InteropServices Imports System.Security Public Class IconInjector ' Basically, you can change icons with the UpdateResource api call. ' When you make the call you say "I'm updating an icon", and you send the icon data. ' The main problem is that ICO files store the icons in one set of structures, and ' exe/dll files store them in ' another set of structures. So you have to translate between the two -- you can't just ' load the ICO file as ' bytes and send them with the UpdateResource api call. <SuppressUnmanagedCodeSecurity()> Private Class NativeMethods <DllImport("kernel32")> Public Shared Function BeginUpdateResource( ByVal fileName As String, <MarshalAs(UnmanagedType.Bool)> ByVal deleteExistingResources As Boolean) As IntPtr End Function <DllImport("kernel32")> Public Shared Function UpdateResource( ByVal hUpdate As IntPtr, ByVal type As IntPtr, ByVal name As IntPtr, ByVal language As Short, <MarshalAs(UnmanagedType.LPArray, SizeParamIndex:=5)> ByVal data() As Byte, ByVal dataSize As Integer) As <MarshalAs(UnmanagedType.Bool)> Boolean End Function <DllImport("kernel32")> Public Shared Function EndUpdateResource( ByVal hUpdate As IntPtr, <MarshalAs(UnmanagedType.Bool)> ByVal discard As Boolean) As <MarshalAs( _ UnmanagedType.Bool)> Boolean End Function End Class ' The first structure in an ICO file lets us know how many images are in the file. <StructLayout(LayoutKind.Sequential)> Private Structure ICONDIR Public Reserved As UShort ' Reserved, must be 0 Public Type As UShort ' Resource type, 1 for icons. Public Count As UShort ' How many images. ' The native structure has an array of ICONDIRENTRYs as a final field. End Structure ' Each ICONDIRENTRY describes one icon stored in the ico file. The offset says where the ' icon image data ' starts in the file. The other fields give the information required to turn that image ' data into a valid ' bitmap. <StructLayout(LayoutKind.Sequential)> Private Structure ICONDIRENTRY Public Width As Byte ' Width, in pixels, of the image Public Height As Byte ' Height, in pixels, of the image Public ColorCount As Byte ' Number of colors in image (0 if >=8bpp) Public Reserved As Byte ' Reserved ( must be 0) Public Planes As UShort ' Color Planes Public BitCount As UShort ' Bits per pixel Public BytesInRes As Integer ' Length in bytes of the pixel data Public ImageOffset As Integer ' Offset in the file where the pixel data starts. End Structure ' Each image is stored in the file as an ICONIMAGE structure: ' typdef struct ' { ' BITMAPINFOHEADER icHeader; // DIB header ' RGBQUAD icColors[1]; // Color table ' BYTE icXOR[1]; // DIB bits for XOR mask ' BYTE icAND[1]; // DIB bits for AND mask ' } ICONIMAGE, *LPICONIMAGE; <StructLayout(LayoutKind.Sequential)> Private Structure BITMAPINFOHEADER Public Size As UInteger Public Width As Integer Public Height As Integer Public Planes As UShort Public BitCount As UShort Public Compression As UInteger Public SizeImage As UInteger Public XPelsPerMeter As Integer Public YPelsPerMeter As Integer Public ClrUsed As UInteger Public ClrImportant As UInteger End Structure ' The icon in an exe/dll file is stored in a very similar structure: <StructLayout(LayoutKind.Sequential, Pack:=2)> Private Structure GRPICONDIRENTRY Public Width As Byte Public Height As Byte Public ColorCount As Byte Public Reserved As Byte Public Planes As UShort Public BitCount As UShort Public BytesInRes As Integer Public ID As UShort End Structure Public Shared Sub InjectIcon(ByVal exeFileName As String, ByVal iconFileName As String) InjectIcon(exeFileName, iconFileName, 1, 1) End Sub Public Shared Sub InjectIcon(ByVal exeFileName As String, ByVal iconFileName As String, _ ByVal iconGroupID As UInteger, ByVal iconBaseID As UInteger) Const RT_ICON As Integer = 3UI Const RT_GROUP_ICON As Integer = 14UI Dim iconFile As IconFile = IconFile.FromFile(iconFileName) Dim hUpdate = NativeMethods.BeginUpdateResource(exeFileName, False) Dim data = iconFile.CreateIconGroupData(iconBaseID) NativeMethods.UpdateResource(hUpdate, New IntPtr(RT_GROUP_ICON), New IntPtr( _ iconGroupID), 0, data, data.Length) For i = 0 To iconFile.ImageCount - 1 Dim image = iconFile.ImageData(i) NativeMethods.UpdateResource(hUpdate, New IntPtr(RT_ICON), New IntPtr(iconBaseID _ + i), 0, image, image.Length) Next NativeMethods.EndUpdateResource(hUpdate, False) End Sub Private Class IconFile Private iconDir As New ICONDIR Private iconEntry() As ICONDIRENTRY Private iconImage()() As Byte Public ReadOnly Property ImageCount() As Integer Get Return iconDir.Count End Get End Property Public ReadOnly Property ImageData(ByVal index As Integer) As Byte() Get Return iconImage(index) End Get End Property Private Sub New() End Sub Public Shared Function FromFile(ByVal filename As String) As IconFile Dim instance As New IconFile ' Read all the bytes from the file. Dim fileBytes() As Byte = IO.File.ReadAllBytes(filename) ' First struct is an ICONDIR ' Pin the bytes from the file in memory so that we can read them. ' If we didn't pin them then they could move around (e.g. when the ' garbage collector compacts the heap) Dim pinnedBytes = GCHandle.Alloc(fileBytes, GCHandleType.Pinned) ' Read the ICONDIR instance.iconDir = DirectCast(Marshal.PtrToStructure( _ pinnedBytes.AddrOfPinnedObject, GetType(ICONDIR)), ICONDIR) ' which tells us how many images are in the ico file. For each image, there's a ' ICONDIRENTRY, and associated pixel data. instance.iconEntry = New ICONDIRENTRY(instance.iconDir.Count - 1) {} instance.iconImage = New Byte(instance.iconDir.Count - 1)() {} ' The first ICONDIRENTRY will be immediately after the ICONDIR, so the offset to ' it is the size of ICONDIR Dim offset = Marshal.SizeOf(instance.iconDir) ' After reading an ICONDIRENTRY we step forward by the size of an ICONDIRENTRY Dim iconDirEntryType = GetType(ICONDIRENTRY) Dim size = Marshal.SizeOf(iconDirEntryType) For i = 0 To instance.iconDir.Count - 1 ' Grab the structure. Dim entry = DirectCast(Marshal.PtrToStructure(New IntPtr( _ pinnedBytes.AddrOfPinnedObject.ToInt64 + offset), iconDirEntryType), _ ICONDIRENTRY) instance.iconEntry(i) = entry ' Grab the associated pixel data. instance.iconImage(i) = New Byte(entry.BytesInRes - 1) {} Buffer.BlockCopy(fileBytes, entry.ImageOffset, instance.iconImage(i), 0, _ entry.BytesInRes) offset += size Next pinnedBytes.Free() Return instance End Function Public Function CreateIconGroupData(ByVal iconBaseID As UInteger) As Byte() ' This will store the memory version of the icon. Dim sizeOfIconGroupData As Integer = Marshal.SizeOf(GetType(ICONDIR)) + _ Marshal.SizeOf(GetType(GRPICONDIRENTRY)) * ImageCount Dim data(sizeOfIconGroupData - 1) As Byte Dim pinnedData = GCHandle.Alloc(data, GCHandleType.Pinned) Marshal.StructureToPtr(iconDir, pinnedData.AddrOfPinnedObject, False) Dim offset = Marshal.SizeOf(iconDir) For i = 0 To ImageCount - 1 Dim grpEntry As New GRPICONDIRENTRY Dim bitmapheader As New BITMAPINFOHEADER Dim pinnedBitmapInfoHeader = GCHandle.Alloc(bitmapheader, GCHandleType.Pinned) Marshal.Copy(ImageData(i), 0, pinnedBitmapInfoHeader.AddrOfPinnedObject, _ Marshal.SizeOf(GetType(BITMAPINFOHEADER))) pinnedBitmapInfoHeader.Free() grpEntry.Width = iconEntry(i).Width grpEntry.Height = iconEntry(i).Height grpEntry.ColorCount = iconEntry(i).ColorCount grpEntry.Reserved = iconEntry(i).Reserved grpEntry.Planes = bitmapheader.Planes grpEntry.BitCount = bitmapheader.BitCount grpEntry.BytesInRes = iconEntry(i).BytesInRes grpEntry.ID = CType(iconBaseID + i, UShort) Marshal.StructureToPtr(grpEntry, New IntPtr( _ pinnedData.AddrOfPinnedObject.ToInt64 + offset), False) offset += Marshal.SizeOf(GetType(GRPICONDIRENTRY)) Next pinnedData.Free() Return data End Function End Class End Class ' ---------------- Ende Datei IconInjector.vb ---------------- ' ---------- Ende Projektdatei Icon_changer.vbproj ---------- ' ----------- Ende Projektgruppe Icon_changer.sln -----------
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