protected virtual void ConvertToCursor(NativeMethods.FileHeader Header, List <NativeMethods.FileRecord> RecordList)
{
using (MemoryStream ms = new MemoryStream())
{
byte[] FieldData;
FieldData = BitConverter.GetBytes(Header.Reserved);
ms.Write(FieldData, 0, FieldData.Length);
FieldData = BitConverter.GetBytes(Header.Type);
ms.Write(FieldData, 0, FieldData.Length);
short ImageCount = (short)RecordList.Count;
FieldData = BitConverter.GetBytes(ImageCount);
ms.Write(FieldData, 0, FieldData.Length);
int DataOffset = 6 + (RecordList.Count * 16);
foreach (NativeMethods.FileRecord Record in RecordList)
{
ms.WriteByte(Record.bWidth);
ms.WriteByte(Record.bHeight);
ms.WriteByte(Record.bColorCount);
ms.WriteByte(Record.bReserved);
FieldData = BitConverter.GetBytes(Record.HotspotX);
ms.Write(FieldData, 0, FieldData.Length);
FieldData = BitConverter.GetBytes(Record.HotspotY);
ms.Write(FieldData, 0, FieldData.Length);
int DataLength = Record.Data.Length - 4;
FieldData = BitConverter.GetBytes(DataLength);
ms.Write(FieldData, 0, FieldData.Length);
FieldData = BitConverter.GetBytes(DataOffset);
ms.Write(FieldData, 0, FieldData.Length);
DataOffset += DataLength;
}
foreach (NativeMethods.FileRecord Record in RecordList)
{
ms.Write(Record.Data, 4, Record.Data.Length - 4);
}
ms.Seek(0, SeekOrigin.Begin);
AsCursor = new Cursor(ms);
}
}
/// <summary>
/// Load the cursor directory with images.
/// </summary>
protected virtual bool LoadDirectory(IntPtr hMod, out NativeMethods.FileHeader Header, out List <NativeMethods.FileRecord> RecordList)
{
IntPtr hResDir = NativeMethods.FindResource(hMod, (IntPtr)ResourceID, (IntPtr)NativeMethods.RT_GROUP_CURSOR);
if (hResDir == IntPtr.Zero)
{
Header = null;
RecordList = null;
return(false);
}
uint size = NativeMethods.SizeofResource(hMod, hResDir);
IntPtr pt = NativeMethods.LoadResource(hMod, hResDir);
byte[] bPtr = new byte[size];
Marshal.Copy(pt, bPtr, 0, (int)size);
if (size < 6)
{
Header = null;
RecordList = null;
return(false);
}
Header = new NativeMethods.FileHeader();
Header.Reserved = BitConverter.ToInt16(bPtr, 0);
Header.Type = BitConverter.ToInt16(bPtr, 2);
Header.ImageCount = BitConverter.ToInt16(bPtr, 4);
List <NativeMethods.FileRecord> TempRecordList = new List <NativeMethods.FileRecord>();
NativeMethods.FileRecord GoodSizedImage = null;
for (short i = 0; i < Header.ImageCount; i++)
{
int Offset = (i * 14) + 6;
NativeMethods.FileRecord Record = new NativeMethods.FileRecord();
Record.bWidth = bPtr[Offset + 0];
Record.bHeight = Record.bWidth;
short wBitCount = BitConverter.ToInt16(bPtr, Offset + 6);
Record.bColorCount = (byte)Math.Pow(2, wBitCount);
Record.bReserved = 0;
Record.nID = BitConverter.ToUInt16(bPtr, Offset + 12);
TempRecordList.Add(Record);
if (Record.bWidth == PreferredSize)
{
GoodSizedImage = Record;
}
}
RecordList = new List <NativeMethods.FileRecord>();
if (GoodSizedImage != null)
{
RecordList.Add(GoodSizedImage);
}
else
{
RecordList.AddRange(TempRecordList);
}
return(true);
}
/// <summary>
/// Load the cursor directory with images.
/// </summary>
/// <param name="hMod">Handle of the resource file.</param>
/// <param name="header">Header of the resource file.</param>
/// <param name="recordList">List of record.</param>
/// <returns>True if successful; otherwise, false.</returns>
protected virtual bool LoadDirectory(IntPtr hMod, out NativeMethods.FileHeader header, out List <NativeMethods.FileRecord> recordList)
{
IntPtr hResDir = NativeMethods.FindResource(hMod, (IntPtr)ResourceID, (IntPtr)NativeMethods.RT_GROUP_CURSOR);
if (hResDir == IntPtr.Zero)
{
Contract.Unused(out header);
Contract.Unused(out recordList);
return(false);
}
uint size = NativeMethods.SizeofResource(hMod, hResDir);
if (size < 6)
{
Contract.Unused(out header);
Contract.Unused(out recordList);
return(false);
}
IntPtr pt = NativeMethods.LoadResource(hMod, hResDir);
byte[] bPtr = new byte[size];
Marshal.Copy(pt, bPtr, 0, (int)size);
header = new NativeMethods.FileHeader
{
Reserved = BitConverter.ToInt16(bPtr, 0),
Type = BitConverter.ToInt16(bPtr, 2),
ImageCount = BitConverter.ToInt16(bPtr, 4),
};
recordList = new List <NativeMethods.FileRecord>();
List <NativeMethods.FileRecord> TempRecordList = new List <NativeMethods.FileRecord>();
bool IsGoodSizedImageAdded = false;
for (short i = 0; i < header.ImageCount; i++)
{
int Offset = (i * 14) + 6;
NativeMethods.FileRecord Record = new NativeMethods.FileRecord();
Record.bWidth = bPtr[Offset + 0];
Record.bHeight = Record.bWidth;
short wBitCount = BitConverter.ToInt16(bPtr, Offset + 6);
Record.bColorCount = (byte)Math.Pow(2, wBitCount);
Record.bReserved = 0;
Record.nID = BitConverter.ToUInt16(bPtr, Offset + 12);
TempRecordList.Add(Record);
if (Record.bWidth == PreferredSize)
{
IsGoodSizedImageAdded = true;
recordList.Add(Record);
}
}
if (!IsGoodSizedImageAdded)
{
recordList.AddRange(TempRecordList);
}
return(true);
}
