/// <include file='doc\ImageAttributes.uex' path='docs/doc[@for="ImageAttributes.GetAdjustedPalette"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void GetAdjustedPalette(ColorPalette palette, ColorAdjustType type)
{
// does inplace adjustment
IntPtr memory = palette.ConvertToMemory();
int status = SafeNativeMethods.GdipGetImageAttributesAdjustedPalette(
new HandleRef(this, nativeImageAttributes), new HandleRef(null, memory), type);
if (status != SafeNativeMethods.Ok)
{
Marshal.FreeHGlobal(memory);
throw SafeNativeMethods.StatusException(status);
}
palette.ConvertFromMemory(memory);
Marshal.FreeHGlobal(memory);
}
public void GetAdjustedPalette(ColorPalette palette, ColorAdjustType type)
{
// does inplace adjustment
IntPtr memory = palette.ConvertToMemory();
try
{
Gdip.CheckStatus(Gdip.GdipGetImageAttributesAdjustedPalette(
new HandleRef(this, nativeImageAttributes),
memory,
type));
palette.ConvertFromMemory(memory);
}
finally
{
if (memory != IntPtr.Zero)
{
Marshal.FreeHGlobal(memory);
}
}
}
public void GetAdjustedPalette(ColorPalette palette, ColorAdjustType type)
{
IntPtr handle = palette.ConvertToMemory();
try
{
int status = SafeNativeMethods.Gdip.GdipGetImageAttributesAdjustedPalette(new HandleRef(this, this.nativeImageAttributes), new HandleRef(null, handle), type);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
palette.ConvertFromMemory(handle);
}
finally
{
if (handle != IntPtr.Zero)
{
Marshal.FreeHGlobal(handle);
}
}
}
public void GetAdjustedPalette(ColorPalette palette, ColorAdjustType type)
{
// does inplace adjustment
IntPtr memory = palette.ConvertToMemory();
try
{
int status = Gdip.GdipGetImageAttributesAdjustedPalette(
new HandleRef(this, nativeImageAttributes), new HandleRef(null, memory), type);
if (status != Gdip.Ok)
{
throw Gdip.StatusException(status);
}
palette.ConvertFromMemory(memory);
}
finally
{
if (memory != IntPtr.Zero)
{
Marshal.FreeHGlobal(memory);
}
}
}
/// <include file='doc\ImageAttributes.uex' path='docs/doc[@for="ImageAttributes.GetAdjustedPalette"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void GetAdjustedPalette(ColorPalette palette, ColorAdjustType type)
{
// does inplace adjustment
IntPtr memory = palette.ConvertToMemory();
try {
int status = SafeNativeMethods.Gdip.GdipGetImageAttributesAdjustedPalette(
new HandleRef(this, nativeImageAttributes), new HandleRef(null, memory), type);
if (status != SafeNativeMethods.Gdip.Ok) {
throw SafeNativeMethods.Gdip.StatusException(status);
}
palette.ConvertFromMemory(memory);
} finally {
if(memory != IntPtr.Zero) {
Marshal.FreeHGlobal(memory);
}
}
}
public void GetAdjustedPalette(ColorPalette palette, ColorAdjustType type)
{
IntPtr handle = palette.ConvertToMemory();
try
{
int status = SafeNativeMethods.Gdip.GdipGetImageAttributesAdjustedPalette(new HandleRef(this, this.nativeImageAttributes), new HandleRef(null, handle), type);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
palette.ConvertFromMemory(handle);
}
finally
{
if (handle != IntPtr.Zero)
{
Marshal.FreeHGlobal(handle);
}
}
}
private ColorPalette _GetColorPalette() {
int size = -1;
int status = SafeNativeMethods.Gdip.GdipGetImagePaletteSize(new HandleRef(this, nativeImage), out size);
// "size" is total byte size:
// sizeof(ColorPalette) + (pal->Count-1)*sizeof(ARGB)
if (status != SafeNativeMethods.Gdip.Ok) {
throw SafeNativeMethods.Gdip.StatusException(status);
}
ColorPalette palette = new ColorPalette(size);
// Memory layout is:
// UINT Flags
// UINT Count
// ARGB Entries[size]
IntPtr memory = Marshal.AllocHGlobal(size);
status = SafeNativeMethods.Gdip.GdipGetImagePalette(new HandleRef(this, nativeImage), memory, size);
try {
if (status != SafeNativeMethods.Gdip.Ok) {
throw SafeNativeMethods.Gdip.StatusException(status);
}
palette.ConvertFromMemory(memory);
}
finally {
Marshal.FreeHGlobal(memory);
}
return palette;
}
private ColorPalette _GetColorPalette()
{
int size = -1;
int status = SafeNativeMethods.Gdip.GdipGetImagePaletteSize(new HandleRef(this, this.nativeImage), out size);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
ColorPalette palette = new ColorPalette(size);
IntPtr ptr = Marshal.AllocHGlobal(size);
status = SafeNativeMethods.Gdip.GdipGetImagePalette(new HandleRef(this, this.nativeImage), ptr, size);
try
{
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
palette.ConvertFromMemory(ptr);
}
finally
{
Marshal.FreeHGlobal(ptr);
}
return palette;
}
