private void loadFromLibrary(string libraryFile, string resourceName)
{
string message = "";
bool flag = false;
IntPtr zero = IntPtr.Zero;
IntPtr hResInfo = IntPtr.Zero;
IntPtr hInstance = IntPtr.Zero;
IntPtr lPtr = IntPtr.Zero;
try
{
hInstance = LoadLibraryEx(libraryFile, IntPtr.Zero, 2);
if (hInstance != IntPtr.Zero)
{
hResInfo = FindResource(hInstance, resourceName, (IntPtr)14);
if (hResInfo != IntPtr.Zero)
{
zero = LoadResource(hInstance, hResInfo);
if (zero != IntPtr.Zero)
{
lPtr = LockResource(zero);
if (lPtr != IntPtr.Zero)
{
int num = this.readResourceIconFileHeader(lPtr);
MEMICONDIRENTRY[] memicondirentryArray = new MEMICONDIRENTRY[num];
int ofs = 6;
for (int i = 0; i < num; i++)
{
memicondirentryArray[i] = new MEMICONDIRENTRY(lPtr, ofs);
ofs += 14;
}
FreeResource(zero);
zero = IntPtr.Zero;
IcDvImg[] icons = new IcDvImg[num];
for (int j = 0; j < num; j++)
{
string lpName = string.Format("#{0:N0}", memicondirentryArray[j].nID);
hResInfo = FindResource(hInstance, lpName, (IntPtr)3);
if (hResInfo == IntPtr.Zero)
{
message = string.Format("Could not find the component icon resource with id {0}", memicondirentryArray[j].nID);
flag = true;
break;
}
zero = LoadResource(hInstance, hResInfo);
if (zero == IntPtr.Zero)
{
message = string.Format("Could not load the component icon resource with id {0}", memicondirentryArray[j].nID);
flag = true;
break;
}
int length = SizeofResource(hInstance, hResInfo);
if ((length > 0) && (length == memicondirentryArray[j].dwBytesInRes))
{
lPtr = LockResource(zero);
byte[] destination = new byte[length];
Marshal.Copy(lPtr, destination, 0, length);
icons[j] = new IcDvImg(destination);
}
else
{
message = string.Format("Component icon resource with id {0} is corrupt", memicondirentryArray[j].nID);
flag = true;
}
}
if (!flag)
{
this.iconCollection = new IconDeviceImageCollection(icons);
}
}
else
{
message = "Can't lock resource for reading.";
flag = true;
}
}
else
{
message = "Can't load resource for reading.";
flag = true;
}
}
else
{
message = "Can't find resource.";
flag = true;
}
}
else
{
message = "Can't load library.";
flag = true;
}
}
catch (Exception exception)
{
flag = true;
message = exception.Message;
}
finally
{
if (zero != IntPtr.Zero)
{
FreeResource(zero);
}
if (hInstance != IntPtr.Zero)
{
FreeLibrary(hInstance);
}
if (flag)
{
throw new IconExException(message);
}
}
}
private void loadInitialise()
{
this.iconFile = "";
this.resourceId = -1;
this.libraryFile = "";
this.iconCollection = new IconDeviceImageCollection();
}
private void loadFromFile(string iconFile)
{
this.loadInitialise();
FileStream input = new FileStream(iconFile, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader br = new BinaryReader(input);
try
{
int num = this.readIconFileHeader(br);
ICONDIRENTRY[] icondirentryArray = new ICONDIRENTRY[num];
for (int i = 0; i < num; i++)
{
icondirentryArray[i] = new ICONDIRENTRY(br);
}
IcDvImg[] icons = new IcDvImg[num];
for (int j = 0; j < num; j++)
{
input.Seek((long)icondirentryArray[j].dwImageOffset, SeekOrigin.Begin);
byte[] buffer = new byte[icondirentryArray[j].dwBytesInRes];
br.Read(buffer, 0, icondirentryArray[j].dwBytesInRes);
icons[j] = new IcDvImg(buffer);
}
this.iconCollection = new IconDeviceImageCollection(icons);
}
catch (Exception exception)
{
if (exception is SystemException)
{
throw exception;
}
throw new IconExException("Failed to read icon file.", exception);
}
finally
{
br.Close();
}
this.iconFile = iconFile;
}
public void Dispose()
{
if (this.iconCollection != null)
{
this.iconCollection.Dispose();
this.iconCollection = null;
}
}
public IconMethod1(string libraryFile, string resourceName)
{
this.iconCollection = null;
this.iconFile = null;
this.libraryFile = null;
this.resourceId = -1;
this.resourceName = null;
this.FromLibrary(libraryFile, resourceName);
}
public IconMethod1(string iconFile)
{
this.iconCollection = null;
this.iconFile = null;
this.libraryFile = null;
this.resourceId = -1;
this.resourceName = null;
this.loadFromFile(iconFile);
}
// Methods
public IconMethod1()
{
this.iconCollection = null;
this.iconFile = null;
this.libraryFile = null;
this.resourceId = -1;
this.resourceName = null;
}
