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public static ChangeProtection ( |
||
| processHandle | A handle to the process whose memory protection is to be changed. | |
| address | A pointer to the base address of the region of pages whose access protection attributes are to be changed. | |
| size | int | The size of the region whose access protection attributes are changed, in bytes. |
| protection | MemoryProtectionFlags | The memory protection option. |
| Résultat | MemoryProtectionFlags | |
public static MemoryProtectionFlags ChangeProtection(SafeMemoryHandle processHandle, IntPtr address, int size, MemoryProtectionFlags protection)
{
// Check if the handles are valid
HandleManipulator.ValidateAsArgument(processHandle, "processHandle");
HandleManipulator.ValidateAsArgument(address, "address");
// Create the variable storing the old protection of the memory page
MemoryProtectionFlags oldProtection;
// Change the protection in the target process
if(NativeMethods.VirtualProtectEx(processHandle, address, size, protection, out oldProtection))
{
// Return the old protection
return oldProtection;
}
// Else the protection couldn't be changed, throws an exception
throw new Win32Exception(string.Format("Couldn't change the protection of the memory at 0x{0} of {1} byte(s) to {2}.", address.ToString("X"), size, protection));
}
/// <summary>
/// Restores the initial protection of the memory.
/// </summary>
public virtual void Dispose()
{
// Restore the memory protection
MemoryCore.ChangeProtection(_memorySharp.Handle, BaseAddress, Size, OldProtection);
// Avoid the finalizer
GC.SuppressFinalize(this);
}
