internal static BitmapHandle CreateDIBSection(HandleRef hdc, ref InteropValues.BITMAPINFO bitmapInfo, int iUsage,
ref IntPtr ppvBits, SafeFileMappingHandle hSection, int dwOffset)
{
if (hSection == null)
{
hSection = new SafeFileMappingHandle(IntPtr.Zero);
}
var hBitmap = PrivateCreateDIBSection(hdc, ref bitmapInfo, iUsage, ref ppvBits, hSection, dwOffset);
return(hBitmap);
}
internal static IconHandle CreateIconCursor(byte[] colorArray, int width, int height, int xHotspot, int yHotspot, bool isIcon)
{
BitmapHandle colorBitmap = null;
BitmapHandle maskBitmap = null;
try
{
var bi = new InteropValues.BITMAPINFO(width, -height, 32)
{
biCompression = InteropValues.BI_RGB
};
var bits = IntPtr.Zero;
colorBitmap = InteropMethods.CreateDIBSection(new HandleRef(null, IntPtr.Zero), ref bi, InteropValues.DIB_RGB_COLORS, ref bits, null, 0);
if (colorBitmap.IsInvalid || bits == IntPtr.Zero)
{
return(IconHandle.GetInvalidIcon());
}
Marshal.Copy(colorArray, 0, bits, colorArray.Length);
var maskArray = GenerateMaskArray(width, height, colorArray);
maskBitmap = InteropMethods.CreateBitmap(width, height, 1, 1, maskArray);
if (maskBitmap.IsInvalid)
{
return(IconHandle.GetInvalidIcon());
}
var iconInfo = new InteropValues.ICONINFO
{
fIcon = isIcon,
xHotspot = xHotspot,
yHotspot = yHotspot,
hbmMask = maskBitmap,
hbmColor = colorBitmap
};
return(InteropMethods.CreateIconIndirect(iconInfo));
}
finally
{
colorBitmap?.Dispose();
maskBitmap?.Dispose();
}
}
internal static extern IntPtr CreateDIBSection(IntPtr hdc, ref InteropValues.BITMAPINFO pbmi, uint iUsage, out IntPtr ppvBits, IntPtr hSection, uint dwOffset);
private static extern BitmapHandle PrivateCreateDIBSection(HandleRef hdc, ref InteropValues.BITMAPINFO bitmapInfo, int iUsage,
ref IntPtr ppvBits, SafeFileMappingHandle hSection, int dwOffset);