/// Sources of icons include:
/// SystemIcons.Hand
/// Environment.ExpandEnvironmentVariables(%SystemRoot%\system32\shell32.dll));
/// C:\Windows\System32\imageres.dll
/// %SystemRoot%\system32\DDORes.dll
public static IconBitMap ExtractICO(string file, int idxIcon)
{
IconBitMap ibm = null;
try
{
if (USE_MAIN_ICON == idxIcon)
{
//System.Drawing.Icon ico = System.Drawing.Icon.ExtractAssociatedIcon(file);
ibm = ExtractIconBitMap(System.Drawing.Icon.ExtractAssociatedIcon(file));
}
else
{
ibm = ExtractIconBitMapFromFile(file, idxIcon);
}
}
catch (Exception e)
{
ibm = ExtractIconBitMap(SystemIcons.Error);
lnkio.WriteProgramLog("Did not get a bitmap source from the file: " + file + " System Error: " + e.Message);
}
if (null == ibm)
{
lnkio.WriteProgramLog("Did not get a bitmap source from the file: " + file);
}
//throw new Exception("Did not get a bitmap source from the file: " + file);
return(ibm);
}
private static IconBitMap GetBitmapFromFileIcon(string file, int iconIndex)
{
IconBitMap ibm = null;
// if a directory path is used just get the system icon
if (File.GetAttributes(file).HasFlag(FileAttributes.Directory))
{
// get a 'built in' icon for a folder
try
{
ibm = ExtractIconBitMapFromFile(
Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\shell32.dll"), 4);
}
catch
{
ibm = null; // ExtractIconBitMap(SystemIcons.Error);
}
}
else
{
ibm = ExtractICO(file, iconIndex);
//ibm = ExtractICO(file, USE_MAIN_ICON);
}
if (null == ibm)
{
ibm = ExtractIconBitMap(SystemIcons.Error);
lnkio.WriteProgramLog("Failed to load icon for " + file);
}
return(ibm);
}
private static IconBitMap ExtractIconBitMapFromFile(string file, int iconindex)
{
IntPtr[] large = new IntPtr[1] {
IntPtr.Zero
};
IntPtr[] small = new IntPtr[1] {
IntPtr.Zero
};
IconBitMap ibm = null;
try
{
int totalIcons = ExtractIconEx_GetCount(file, large, small);
if (totalIcons > iconindex)
{
ExtractIconEx(file, iconindex, large, small, 1);
if (large[0] != IntPtr.Zero)
{
ibm = ExtractIconBitMap(large[0]);
DestroyIcon(large[0]);
if (small[0] != IntPtr.Zero)
{
DestroyIcon(small[0]);
}
}
}
}
catch (Exception e)
{
lnkio.WriteProgramLog("ExtractIconBitMapFromFile(): Failed to load icon(s) from " +
file + " System Error: " + e.Message);
}
finally
{
try {
if (null == ibm)
{
ibm = ExtractIconBitMap(System.Drawing.Icon.ExtractAssociatedIcon(file));
}
}
catch (Exception e)
{
lnkio.WriteProgramLog("ExtractIconBitMapFromFile(): Failed to load icon(s) from " +
file + " System Error: " + e.Message);
}
finally
{
if (null == ibm)
{
ibm = ExtractIconBitMap(SystemIcons.Error);
}
}
}
return(ibm);
}
public static IconBitMap ExtractIconBitMap(Icon ico)
{
IconBitMap ibm = null;
Bitmap bm = null;
IntPtr hbm = IntPtr.Zero;
try
{
bm = ico.ToBitmap();
hbm = bm.GetHbitmap();
BitmapSource bmsource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hbm, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
ibm = new IconBitMap()
{
BitmapSize = bm.Width,
bitmap = bm,
bitmapsource = bmsource
};
}
catch (Exception e)
{
lnkio.WriteProgramLog("ExtractIconBitMap() failed: " + e.Message);
}
finally
{
//release all resources used
if (IntPtr.Zero != hbm)
{
DeleteObject(hbm);
}
if (null != bm)
{
bm.Dispose();
}
if (null == ibm)
{
ibm = ExtractIconBitMap(SystemIcons.Error);
}
}
// must always return a valid icon bitmap
return(ibm);
}
private void MiSC_ChangeICO_Click(object sender, RoutedEventArgs e)
{
MenuItem mi = (MenuItem)sender;
ContextMenu cm = (ContextMenu)mi.Parent;
Shortcut sc = cm.PlacementTarget as Shortcut;
string[] iconsourcefiles = new string[] {
// provide a path to the original icon
sc.lnkData.ShortcutAddress,
sc.lnkData.OriginalTargetPath,
Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\shell32.dll"),
Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\imageres.dll"),
Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\DDORes.dll")
};
using (IconSelect iconSelector = new IconSelect()
{
Owner = this
})
{
iconSelector.IconSelectSetIconSourcePaths(iconsourcefiles);
// if the user selected something so the value is not false or null for retruned bool?
if (true == iconSelector.ShowDialog())
{
//var x = iconSelector.DialogResult;
sc.lnkData.IconIndex = iconSelector.idxIcon;
sc.lnkData.IconSourceFilePath = iconsourcefiles[iconSelector.idxFile];
// set the new icon
IconBitMap ibm = null;
if (sc.lnkData.IconIndex != USE_MAIN_ICON)
{
ibm = ico2bmap.ExtractICO(sc.lnkData.IconSourceFilePath, sc.lnkData.IconIndex);
}
if (null == ibm)
{
ibm = ico2bmap.ExtractIconBitMap(System.Drawing.Icon.ExtractAssociatedIcon(sc.lnkData.IconSourceFilePath));
}
sc.Source = ibm.bitmapsource;
sc.Width = ibm.BitmapSize;
}
}
}
public static IconBitMap ExtractIconBitMap(Icon ico)
{
IconBitMap ibm = null;
Bitmap bm = null;
IntPtr hbm = IntPtr.Zero;
try
{
bm = ico.ToBitmap();
hbm = bm.GetHbitmap();
BitmapSource bmsource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hbm, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
ibm = new IconBitMap()
{
BitmapSize = bm.Width,
bitmap = bm,
bitmapsource = bmsource
};
}
catch (Exception e)
{
lnkio.WriteProgramLog("ExtractIconBitMap() failed: " + e.Message);
}
finally
{
//release all resources used
if( IntPtr.Zero != hbm)
DeleteObject(hbm);
if ( null != bm )
bm.Dispose();
if ( null == ibm )
ibm = ExtractIconBitMap(SystemIcons.Error);
}
// must always return a valid icon bitmap
return ibm;
}
private static ObservableCollection <IconBitMap> ExtractAllIconBitMapFromFile(string file, int maxIcons = 0)
{
// limit the maximum number to be retrieved
if (maxIcons > MAX_ICONS)
{
maxIcons = MAX_ICONS;
}
IntPtr[] large = new IntPtr[maxIcons];
IntPtr[] small = new IntPtr[maxIcons];
IconBitMap iconbitmap = null;
bool bReportError = false;
ObservableCollection <IconBitMap> ibm = new ObservableCollection <IconBitMap>();
try
{
if (maxIcons == USE_MAIN_ICON)
{
iconbitmap = ExtractIconBitMap(System.Drawing.Icon.ExtractAssociatedIcon(file));
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
}
else
{
// The number of icons retrieved may or may not be the icon count total
// It my be all of the large and small combined.
int totalicons = ExtractIconEx_GetCount(file, large, small);
// totalicons will be the number of distinct icons large and small versions
if (totalicons > 0)
{
if (totalicons > maxIcons)
{
totalicons = maxIcons;
}
// iconsExtracted may be a count of all the large and small combined
// if the icon source is an EXE and be exactly double the query
// number given above.
int iconsExtracted = ExtractIconEx(file, 0, large, small, totalicons); // note arrays are passed as pointers, so no 'out'
if (iconsExtracted > 0)
{
for (int i = 0; i < totalicons; i++)
{
if (IntPtr.Zero != large[i])
{
iconbitmap = ExtractIconBitMap(large[i]);
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
else
{
bReportError = true;
}
DestroyIcon(large[i]);
if (IntPtr.Zero != small[i])
{
DestroyIcon(small[i]);
}
}
}
}
else
{
iconbitmap = ExtractIconBitMap(System.Drawing.Icon.ExtractAssociatedIcon(file));
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
else
{
ibm.Add(ExtractIconBitMap(SystemIcons.Error));
bReportError = true;
}
}
}
else
{
iconbitmap = ExtractIconBitMap(System.Drawing.Icon.ExtractAssociatedIcon(file));
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
else
{
iconbitmap = ExtractIconBitMap(SystemIcons.Error);
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
bReportError = true;
}
}
}
}
catch (Exception e)
{
iconbitmap = ExtractIconBitMap(SystemIcons.Error);
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
lnkio.WriteProgramLog("Icon source anomaly: Failed to load one or more icon(s) from " +
file + "System Error: " + e.Message);
bReportError = false;
}
finally
{
// RELEASE RESOURCES
foreach (IntPtr ptr in large)
{
if (ptr != IntPtr.Zero)
{
DestroyIcon(ptr);
}
}
foreach (IntPtr ptr in small)
{
if (ptr != IntPtr.Zero)
{
DestroyIcon(ptr);
}
}
if (null == iconbitmap)
{
iconbitmap = ExtractIconBitMap(SystemIcons.Error);
if (null != iconbitmap)
{
ibm.Add(iconbitmap);
}
else
{
bReportError = true;
}
}
}
if (bReportError)
{
lnkio.WriteProgramLog("Icon source anomaly: Failed to load one or more icon(s) from " + file);
}
return(ibm);
}
