B83.Win32.UnityDragAndDropHook Class Reference

Public Member Functions
delegate void	DroppedFilesEvent (List< string > aPathNames, POINT aDropPoint)

Static Public Member Functions
static void	InstallHook ()
static void	UninstallHook ()

Events
static DroppedFilesEvent	OnDroppedFiles

Static Private Member Functions
static bool	EnumCallback (IntPtr W, IntPtr _)
static IntPtr	Callback (int code, IntPtr wParam, ref MSG lParam)

Static Private Attributes
static uint	threadId
static IntPtr	mainWindow = IntPtr.Zero
static IntPtr	m_Hook
static string	m_ClassName = "UnityWndClass"

Detailed Description

Definition at line 8 of file UnityDragAndDropHook.cs.

Member Function Documentation

Callback()

static IntPtr B83.Win32.UnityDragAndDropHook.Callback ( int  code, IntPtr  wParam, ref MSG  lParam  )

inlinestaticprivate

Definition at line 52 of file UnityDragAndDropHook.cs.

    {
        if (code == 0 && lParam.message == WM.DROPFILES)
        {
            WinAPI.DragQueryPoint(lParam.wParam, out var pos);
            uint num = WinAPI.DragQueryFile(lParam.wParam, uint.MaxValue, null, 0u);
            StringBuilder stringBuilder = new StringBuilder(1024);
            List<string> list = new List<string>();
            for (uint num2 = 0u; num2 < num; num2++)
            {
                int num3 = (int)WinAPI.DragQueryFile(lParam.wParam, num2, stringBuilder, 1024u);
                list.Add(stringBuilder.ToString(0, num3));
                stringBuilder.Length = 0;
            }
            WinAPI.DragFinish(lParam.wParam);
            if (UnityDragAndDropHook.OnDroppedFiles != null)
            {
                UnityDragAndDropHook.OnDroppedFiles(list, pos);
            }
        }
        return WinAPI.CallNextHookEx(m_Hook, code, wParam, ref lParam);
    }

References B83.Win32.WinAPI.CallNextHookEx(), B83.Win32.WinAPI.DragFinish(), B83.Win32.WinAPI.DragQueryFile(), B83.Win32.WinAPI.DragQueryPoint(), B83.Win32.UnityDragAndDropHook.m_Hook, and B83.Win32.UnityDragAndDropHook.OnDroppedFiles.

Referenced by B83.Win32.UnityDragAndDropHook.InstallHook().

DroppedFilesEvent()

delegate void B83.Win32.UnityDragAndDropHook.DroppedFilesEvent	(	List< string >	aPathNames,
		POINT	aDropPoint
	)

EnumCallback()

static bool B83.Win32.UnityDragAndDropHook.EnumCallback ( IntPtr  W, IntPtr  _  )

inlinestaticprivate

Definition at line 23 of file UnityDragAndDropHook.cs.

    {
        if (Window.IsWindowVisible(W) && (mainWindow == IntPtr.Zero || (m_ClassName != null && Window.GetClassName(W) == m_ClassName)))
        {
            mainWindow = W;
        }
        return true;
    }

References B83.Win32.Window.GetClassName(), B83.Win32.Window.IsWindowVisible(), B83.Win32.UnityDragAndDropHook.m_ClassName, and B83.Win32.UnityDragAndDropHook.mainWindow.

Referenced by B83.Win32.UnityDragAndDropHook.InstallHook().

InstallHook()

static void B83.Win32.UnityDragAndDropHook.InstallHook ( )

inlinestatic

Definition at line 32 of file UnityDragAndDropHook.cs.

    {
        threadId = WinAPI.GetCurrentThreadId();
        if (threadId != 0)
        {
            Window.EnumThreadWindows(threadId, EnumCallback, IntPtr.Zero);
        }
        IntPtr moduleHandle = WinAPI.GetModuleHandle(null);
        m_Hook = WinAPI.SetWindowsHookEx(HookType.WH_GETMESSAGE, Callback, moduleHandle, threadId);
        WinAPI.DragAcceptFiles(mainWindow, fAccept: true);
    }

References B83.Win32.UnityDragAndDropHook.Callback(), B83.Win32.WinAPI.DragAcceptFiles(), B83.Win32.UnityDragAndDropHook.EnumCallback(), B83.Win32.Window.EnumThreadWindows(), B83.Win32.WinAPI.GetCurrentThreadId(), B83.Win32.WinAPI.GetModuleHandle(), B83.Win32.UnityDragAndDropHook.m_Hook, B83.Win32.UnityDragAndDropHook.mainWindow, B83.Win32.WinAPI.SetWindowsHookEx(), and B83.Win32.UnityDragAndDropHook.threadId.

Referenced by FileDragAndDrop.OnEnable(), and ImageExample.OnEnable().

UninstallHook()

static void B83.Win32.UnityDragAndDropHook.UninstallHook ( )

inlinestatic

Definition at line 44 of file UnityDragAndDropHook.cs.

    {
        WinAPI.UnhookWindowsHookEx(m_Hook);
        WinAPI.DragAcceptFiles(mainWindow, fAccept: false);
        m_Hook = IntPtr.Zero;
    }

References B83.Win32.WinAPI.DragAcceptFiles(), B83.Win32.UnityDragAndDropHook.m_Hook, B83.Win32.UnityDragAndDropHook.mainWindow, and B83.Win32.WinAPI.UnhookWindowsHookEx().

Referenced by FileDragAndDrop.OnDisable(), and ImageExample.OnDisable().

Member Data Documentation

m_ClassName

string B83.Win32.UnityDragAndDropHook.m_ClassName = "UnityWndClass"

staticprivate

Definition at line 18 of file UnityDragAndDropHook.cs.

Referenced by B83.Win32.UnityDragAndDropHook.EnumCallback().

m_Hook

IntPtr B83.Win32.UnityDragAndDropHook.m_Hook

staticprivate

Definition at line 16 of file UnityDragAndDropHook.cs.

Referenced by B83.Win32.UnityDragAndDropHook.Callback(), B83.Win32.UnityDragAndDropHook.InstallHook(), and B83.Win32.UnityDragAndDropHook.UninstallHook().

mainWindow

IntPtr B83.Win32.UnityDragAndDropHook.mainWindow = IntPtr.Zero

staticprivate

Definition at line 14 of file UnityDragAndDropHook.cs.

Referenced by B83.Win32.UnityDragAndDropHook.EnumCallback(), B83.Win32.UnityDragAndDropHook.InstallHook(), and B83.Win32.UnityDragAndDropHook.UninstallHook().

threadId

uint B83.Win32.UnityDragAndDropHook.threadId

staticprivate

Definition at line 12 of file UnityDragAndDropHook.cs.

Referenced by B83.Win32.UnityDragAndDropHook.InstallHook().

Event Documentation

OnDroppedFiles

DroppedFilesEvent B83.Win32.UnityDragAndDropHook.OnDroppedFiles

static

Definition at line 20 of file UnityDragAndDropHook.cs.

Referenced by B83.Win32.UnityDragAndDropHook.Callback().

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The documentation for this class was generated from the following file:

• Elin/Plugins.basecore/B83/Win32/UnityDragAndDropHook.cs