/// <inheritdoc/>
public IntPtr GetWindowLongPtr(IntPtr hwnd, GwlType nIndex)
{
IntPtr returnValue;
if (IntPtr.Size == 8)
{
// 64 bit system
returnValue = GetWindowLongPtr64(hwnd, nIndex);
}
else
{
// 32 bit system
returnValue = GetWindowLongPtr32(hwnd, nIndex);
}
if (returnValue == IntPtr.Zero)
{
HResult.ThrowLastError();
}
return(returnValue);
}
/// <inheritdoc/>
public IntPtr SetWindowLongPtr(IntPtr hwnd, GwlType nIndex, IntPtr dwNewLong)
{
IntPtr returnValue;
if (IntPtr.Size == 8)
{
// 64 bit system
returnValue = SetWindowLongPtr64(hwnd, nIndex, dwNewLong);
}
else
{
// 32 bit system
returnValue = (IntPtr)SetWindowLongPtr32(hwnd, nIndex, dwNewLong.ToInt32());
}
if (returnValue == IntPtr.Zero)
{
HResult.ThrowLastError();
}
return(returnValue);
}
private static extern IntPtr GetWindowLongPtr64(IntPtr hwnd, GwlType nIndex);
private static extern IntPtr SetWindowLongPtr64(IntPtr hWnd, GwlType nIndex, IntPtr dwNewLong);
private static extern int SetWindowLongPtr32(IntPtr hWnd, GwlType nIndex, int dwNewLong);
