public static IntPtr GetClassLongPtr(IntPtr hWnd, ClassLong i)
{
if (IntPtr.Size == 8) {
return GetClassLong64(hWnd, (int)i);
}
return new IntPtr(GetClassLong32(hWnd, (int)i));
}
/// <summary>
/// Replaces the specified value at the specified offset in the extra class memory or the WNDCLASSEX structure for the class to which the specified window belongs.
/// </summary>
/// <param name="hWnd">A handle to the window and, indirectly, the class to which the window belongs.</param>
/// <param name="nIndex">The zero-based offset to the value to be set.</param>
/// <param name="dwNewLong">The replacement value.</param>
/// <returns>If the function succeeds, the return value is the previous value of the specified offset. If this was not previously set, the return value is zero.</returns>
public static IntPtr SetClassLong(IntPtr hWnd, ClassLong nIndex, IntPtr dwNewLong)
{
if (PlatformInfo.Is64BitProcess)
{
return(NativeMethods.SetClassLongPtr(hWnd, nIndex, dwNewLong));
}
return(new IntPtr(NativeMethods.SetClassLong(hWnd, nIndex, (uint)dwNewLong)));
}
/// <summary>
/// Retrieves the specified value from the WNDCLASSEX structure associated with the specified window.
/// </summary>
/// <param name="hWnd">A handle to the window and, indirectly, the class to which the window belongs.</param>
/// <param name="nIndex">Index of the value.</param>
/// <returns></returns>
public static IntPtr GetClassLong(IntPtr hWnd, ClassLong nIndex)
{
if (PlatformInfo.Is64BitProcess)
{
return(NativeMethods.GetClassLongPtr(hWnd, nIndex));
}
return(new IntPtr(NativeMethods.GetClassLong(hWnd, nIndex)));
}
public static IntPtr GetClassLongPtr(IntPtr hWnd, ClassLong i)
{
if (IntPtr.Size == 8)
{
return(GetClassLong64(hWnd, (int)i));
}
return(new IntPtr(GetClassLong32(hWnd, (int)i)));
}
/// <summary>
/// Retrieves the specified value from the WNDCLASSEX structure associated with the specified window.
/// </summary>
/// <param name="hWnd">A handle to the window and, indirectly, the class to which the window belongs.</param>
/// <param name="nIndex">Index of the value.</param>
/// <returns></returns>
public static IntPtr GetClassLong(IntPtr hWnd, ClassLong nIndex)
{
if (PlatformInfo.Is64BitProcess)
{
return NativeMethods.GetClassLongPtr(hWnd, nIndex);
}
return new IntPtr(NativeMethods.GetClassLong(hWnd, nIndex));
}
public static IntPtr GetClassLong(WindowHandle window, ClassLong index)
{
// Unfortunate, but this is necessary to tell if there is really an error
ErrorMethods.SetLastError(WindowsError.NO_ERROR);
IntPtr result = Support.Environment.Is64BitProcess
? (IntPtr)Imports.GetClassLongPtrW(window, index)
: (IntPtr)Imports.GetClassLongW(window, index);
if (result == IntPtr.Zero)
{
Errors.ThrowIfLastErrorNot(WindowsError.ERROR_SUCCESS);
}
return(result);
}
public static IntPtr SetClassLong(WindowHandle window, ClassLong index, IntPtr value)
{
// Unfortunate, but this is necessary to tell if there is really an error
// (Even though this is only documented on SetWindowLong, happens here too)
ErrorMethods.SetLastError(WindowsError.NO_ERROR);
IntPtr result = Support.Environment.Is64BitProcess
? (IntPtr)Imports.SetClassLongPtrW(window, index, value.ToInt64())
: (IntPtr)Imports.SetClassLongW(window, index, value.ToInt32());
if (result == IntPtr.Zero)
{
Errors.ThrowIfLastErrorNot(WindowsError.ERROR_SUCCESS);
}
return(result);
}
public static IntPtr SetClassLongPtr(IntPtr hWnd, NativeConstants.GetClassLong nIndex, IntPtr dwNewLong) => OS.Is64Bit ? ClassLong.SetClassLongPtrW(hWnd, nIndex, dwNewLong) : new IntPtr(ClassLong.SetClassLongW(hWnd, nIndex, dwNewLong.ToInt32()));
public static extern long GetClassLongPtrW(
WindowHandle hWnd,
ClassLong nIndex);
public static extern long SetClassLongPtrW(
WindowHandle hWnd,
ClassLong nIndex,
long dwNewLong);
public static extern uint SetClassLong(IntPtr hWnd, ClassLong nIndex, uint dwNewLong);
public static extern uint GetClassLong(IntPtr hWnd, ClassLong nIndex);
/// <summary>
/// Replaces the specified value at the specified offset in the extra class memory or the WNDCLASSEX structure for the class to which the specified window belongs.
/// </summary>
/// <param name="hWnd">A handle to the window and, indirectly, the class to which the window belongs.</param>
/// <param name="nIndex">The zero-based offset to the value to be set.</param>
/// <param name="dwNewLong">The replacement value.</param>
/// <returns>If the function succeeds, the return value is the previous value of the specified offset. If this was not previously set, the return value is zero.</returns>
public static IntPtr SetClassLong(IntPtr hWnd, ClassLong nIndex, IntPtr dwNewLong)
{
if (PlatformInfo.Is64BitProcess)
{
return NativeMethods.SetClassLongPtr(hWnd, nIndex, dwNewLong);
}
return new IntPtr(NativeMethods.SetClassLong(hWnd, nIndex, (uint)dwNewLong));
}
public static IntPtr SetClassLong(this WindowHandle window, ClassLong index, IntPtr value) => WindowMethods.SetClassLong(window, index, value);
private static extern IntPtr GetClassLongPtr(WindowHandle hWnd, ClassLong nIndex);
public static extern uint GetClassLong(IntPtr hWnd, ClassLong nIndex);
public static extern IntPtr GetClassLongPtr(IntPtr hWnd, ClassLong nIndex);
public static extern IntPtr GetClassLongPtr(IntPtr hWnd, ClassLong nIndex);
public static extern IntPtr SetClassLongPtr(IntPtr hWnd, ClassLong nIndex, IntPtr dwNewLong);
public static extern uint SetClassLong(IntPtr hWnd, ClassLong nIndex, uint dwNewLong);
public static extern int GetClassLongW(
WindowHandle hWnd,
ClassLong nIndex);
public static extern IntPtr SetClassLongPtr(IntPtr hWnd, ClassLong nIndex, IntPtr dwNewLong);
public static extern int SetClassLongW(
WindowHandle hWnd,
ClassLong nIndex,
int dwNewLong);
public static IntPtr GetClassLongPtr(IntPtr hWnd, NativeConstants.GetClassLong nIndex) => new IntPtr(OS.Is64Bit ? ClassLong.GetClassLongPtrW(hWnd, nIndex) : ClassLong.GetClassLongW(hWnd, nIndex));
