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Thread: [RESOLVED] Change cursor with code, by pressing keys, to the respective document.cur

  1. #1

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    Resolved [RESOLVED] Change cursor with code, by pressing keys, to the respective document.cur

    I'm creating a project,
    with a no border [FormBorderStyle=None] transparent [BackColor=White][TransparencyKey=White] screen sized [Size=1366; 768] form (with 10 PictureBoxes):
    Name:  Form.jpg
Views: 457
Size:  7.7 KB
    ...and I need help to make the application work.

    I want it to change the cursor (doesn't matter the location, inside or outside the form, I want always the cursor selected) to one of my 9 cursors stored on my pc (one for each command Alt+1 Alt+2 Alt+3 Alt+4 Alt+5 Alt+6 Alt+7 Alt+8 Alt+9).
    I already have the code for the commands and the code to change the cursor, but it only works at the beggining (when the form is being loaded [Event Form1_Load] and at the end [Event Form1_FormClosed] so that it changes back to the default cursor).
    I tried to put on the if Alt+1to9 code but it just doesn't work.
    I think that I need to disable/unload the cursor, then change it, and enable/load it again but I don't know how to do it (or even destroy it and create a new one).
    I searched everywhere but I can't understand the informations on the Internet because I can't find any example working or it's in C#/C++.

    Here's all the code on the project:
    Code:
    Imports System.Runtime.InteropServices
    Public Class Form1
        <DllImport("user32.dll")> Public Shared Function CopyIcon(ByVal hIcon As IntPtr) As IntPtr
        End Function
        <DllImport("user32.dll")> Private Shared Function LoadCursorFromFile(ByVal fileName As String) As IntPtr
        End Function
        <DllImport("User32.dll")> Public Shared Function RegisterHotKey(ByVal hwnd As IntPtr, ByVal id As Integer, ByVal fsModifiers As Integer, ByVal vk As Integer) As Integer
        End Function
        <DllImport("user32.dll")> Private Shared Function SetSystemCursor(ByVal hCursor As IntPtr, ByVal id As Integer) As Boolean
        End Function
        <DllImport("User32.dll")> Public Shared Function UnregisterHotKey(ByVal hwnd As IntPtr, ByVal id As Integer) As Integer
        End Function
        Const OCR_NORMAL As UInteger = 32512
        Dim oldCursor As IntPtr
        Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
            oldCursor = CopyIcon(Cursors.Default.CopyHandle)
            SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Grass Block 3D.cur")), OCR_NORMAL)
            Me.PictureBox2.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox2.Location))
            Me.PictureBox2.Parent = Me.PictureBox1
            Me.PictureBox3.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox3.Location))
            Me.PictureBox3.Parent = Me.PictureBox1
            Me.PictureBox4.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox4.Location))
            Me.PictureBox4.Parent = Me.PictureBox1
            Me.PictureBox5.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox5.Location))
            Me.PictureBox5.Parent = Me.PictureBox1
            Me.PictureBox6.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox6.Location))
            Me.PictureBox6.Parent = Me.PictureBox1
            Me.PictureBox7.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox7.Location))
            Me.PictureBox7.Parent = Me.PictureBox1
            Me.PictureBox8.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox8.Location))
            Me.PictureBox8.Parent = Me.PictureBox1
            Me.PictureBox9.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox9.Location))
            Me.PictureBox9.Parent = Me.PictureBox1
            Me.PictureBox10.Location = Me.PictureBox1.PointToClient(Me.PointToScreen(Me.PictureBox10.Location))
            Me.PictureBox10.Parent = Me.PictureBox1
            RegisterHotKey(Me.Handle, 0, &H1, 0)
            RegisterHotKey(Me.Handle, 100, &H1, Keys.D1)
            RegisterHotKey(Me.Handle, 200, &H1, Keys.D2)
            RegisterHotKey(Me.Handle, 300, &H1, Keys.D3)
            RegisterHotKey(Me.Handle, 400, &H1, Keys.D4)
            RegisterHotKey(Me.Handle, 500, &H1, Keys.D5)
            RegisterHotKey(Me.Handle, 600, &H1, Keys.D6)
            RegisterHotKey(Me.Handle, 700, &H1, Keys.D7)
            RegisterHotKey(Me.Handle, 800, &H1, Keys.D8)
            RegisterHotKey(Me.Handle, 900, &H1, Keys.D9)
        End Sub
        Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
            If m.Msg = &H312 Then
                Dim id As IntPtr = m.WParam
                Select Case (id.ToString)
                    Case "0"
                        PictureBox1.Image = My.Resources.Toolbar_0
                        PictureBox1.Visible = True
                    Case "100"
                        PictureBox1.Image = My.Resources.Toolbar_1
                        PictureBox1.Visible = True
                    Case "200"
                        PictureBox1.Image = My.Resources.Toolbar_2
                        PictureBox1.Visible = True
                    Case "300"
                        PictureBox1.Image = My.Resources.Toolbar_3
                        PictureBox1.Visible = True
                    Case "400"
                        PictureBox1.Image = My.Resources.Toolbar_4
                        PictureBox1.Visible = True
                    Case "500"
                        PictureBox1.Image = My.Resources.Toolbar_5
                        PictureBox1.Visible = True
                    Case "600"
                        PictureBox1.Image = My.Resources.Toolbar_6
                        PictureBox1.Visible = True
                    Case "700"
                        PictureBox1.Image = My.Resources.Toolbar_7
                        PictureBox1.Visible = True
                    Case "800"
                        PictureBox1.Image = My.Resources.Toolbar_8
                        PictureBox1.Visible = True
                    Case "900"
                        PictureBox1.Image = My.Resources.Toolbar_9
                        PictureBox1.Visible = True
                End Select
            End If
            MyBase.WndProc(m)
        End Sub
        Private Sub PictureBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseMove
            PictureBox1.Visible = False
        End Sub
        Private Sub Form1_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs)
            UnregisterHotKey(Me.Handle, 0)
            UnregisterHotKey(Me.Handle, 100)
            UnregisterHotKey(Me.Handle, 200)
            UnregisterHotKey(Me.Handle, 300)
            UnregisterHotKey(Me.Handle, 400)
            UnregisterHotKey(Me.Handle, 500)
            UnregisterHotKey(Me.Handle, 600)
            UnregisterHotKey(Me.Handle, 700)
            UnregisterHotKey(Me.Handle, 800)
            UnregisterHotKey(Me.Handle, 900)
        End Sub
        Private Sub Form1_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
            SetSystemCursor(CopyIcon(oldCursor), OCR_NORMAL)
        End Sub
    End Class
    Note:The fact that there's no border on the form makes the 'change the cursor back to the default' not work, making me have to change the cursor every time I run the app. The form is invisible so it's like the cursor it's outside the form. On the code above, the 2 lines that sets the cursor are on the load event and what I'm trying to accomplish is to have it on each case statment.
    My two threads about it:
    http://www.vbforums.com/showthread.p...r-outside-form
    http://www.vbforums.com/showthread.p...the-beggining)


    If you want the program, inform me where I should display it.
    Any questions about the project, please post and I will try to answer right away...
    Last edited by rdrmdr; Jan 29th, 2016 at 09:34 AM.

  2. #2
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Are you saying you want the hotkeys to change the system cursor?

  3. #3

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Quote Originally Posted by .paul. View Post
    Are you saying you want the hotkeys to change the system cursor?
    Yes, I want to change to a different cursor for each of the 9 HotKeys (10, the Alt Hotkey changes it back to the default).

  4. #4
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    where are the .cur files?

  5. #5

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Quote Originally Posted by .paul. View Post
    where are the .cur files?
    [Alt] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor.cur
    It's just a copy of the default cursor.

    [Alt+1] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Grass Block 3D.cur
    Name:  Cursor Grass Block 3D.png
Views: 309
Size:  2.0 KB

    [Alt+2] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Dirt 3D.cur
    Name:  Cursor Dirt 3D.png
Views: 307
Size:  1.7 KB

    [Alt+3] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Oak Wood Planks 3D.cur
    Name:  Cursor Oak Wood Planks 3D.png
Views: 304
Size:  1.7 KB

    [Alt+4] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Cobblestone 3D.cur
    Name:  Cursor Cobblestone 3D.png
Views: 301
Size:  2.3 KB

    [Alt+5] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Bricks 3D.cur


    [Alt+6] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Oak Wood 3D.cur


    [Alt+7] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Sand 3D.cur


    [Alt+8] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Glass 3D.cur


    [Alt+9] = C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Stone Bricks 3D.cur


    Name:  Location.jpg
Views: 320
Size:  28.2 KB

  6. #6

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Can only attatch 5 pics for each post, here's the others...
    Name:  Cursor Bricks 3D.png
Views: 302
Size:  2.3 KB
    Name:  Cursor Oak Wood 3D.png
Views: 304
Size:  2.1 KB
    Name:  Cursor Sand 3D.png
Views: 304
Size:  2.4 KB
    Name:  Cursor Glass 3D.png
Views: 305
Size:  1.1 KB
    Name:  Cursor Stone Bricks 3D.png
Views: 302
Size:  1.8 KB
    Note: As you can see on the code, I go get the Toolbar (image) at my resorces but to get the cursor I need to go get at the file location because I can't import .cur files. Just pointing that out, not necessary to know
    Last edited by rdrmdr; Jan 29th, 2016 at 01:36 PM.

  7. #7
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    In the cases in the wndproc, use the same code you used in form_load to change the system cursor. It's just the 1 line and you'll need to change the file path in each case.

  8. #8

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Quote Originally Posted by .paul. View Post
    In the cases in the wndproc, use the same code you used in form_load to change the system cursor. It's just the 1 line and you'll need to change the file path in each case.
    So I put something like this:
    Code:
    ...
    Select Case (id.ToString)
                    Case "0"
                        PictureBox1.Image = My.Resources.Toolbar_0
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor.cur")), OCR_NORMAL)
                    Case "100"
                        PictureBox1.Image = My.Resources.Toolbar_1
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Grass Block 3D.cur")), OCR_NORMAL)
                    Case "200"
    ...
    If yes, and it works, then I'm SUPER DUMB because I was putting the 2 lines :|

  9. #9

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    It worked
    Code:
    ...
    Select Case (id.ToString)
                    Case "0"
                        PictureBox1.Image = My.Resources.Toolbar_0
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor.cur")), OCR_NORMAL)
                    Case "100"
                        PictureBox1.Image = My.Resources.Toolbar_1
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Grass Block 3D.cur")), OCR_NORMAL)
                    Case "200"
                        PictureBox1.Image = My.Resources.Toolbar_2
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Dirt 3D.cur")), OCR_NORMAL)
                    Case "300"
                        PictureBox1.Image = My.Resources.Toolbar_3
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Oak Wood Planks 3D.cur")), OCR_NORMAL)
                    Case "400"
                        PictureBox1.Image = My.Resources.Toolbar_4
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Cobblestone 3D.cur")), OCR_NORMAL)
                    Case "500"
                        PictureBox1.Image = My.Resources.Toolbar_5
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Bricks 3D.cur")), OCR_NORMAL)
                    Case "600"
                        PictureBox1.Image = My.Resources.Toolbar_6
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Oak Wood 3D.cur")), OCR_NORMAL)
                    Case "700"
                        PictureBox1.Image = My.Resources.Toolbar_7
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Sand 3D.cur")), OCR_NORMAL)
                    Case "800"
                        PictureBox1.Image = My.Resources.Toolbar_8
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Glass 3D.cur")), OCR_NORMAL)
                    Case "900"
                        PictureBox1.Image = My.Resources.Toolbar_9
                        PictureBox1.Visible = True
                        SetSystemCursor(CopyIcon(LoadCursorFromFile("C:\Users\Rúben\Desktop\Rúben\Texturas\Cursor Stone Bricks 3D.cur")), OCR_NORMAL)
                End Select
    ...
    but there's some weird problem, it doesn't changes the cursor back to the default at the end or maybe it's setting the oldCursor wrong at the load event...
    If I put the border style property of the form as Sizable and I end the program clicking on the [x] it change the cursor back to the default but if I break the program in the button on VB (blue square) it doesn't.
    I see the problem, I'm gonna try to add a Hotkey Esc to close and change the cursor back...
    Last edited by rdrmdr; Jan 29th, 2016 at 01:53 PM.

  10. #10
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    As i told you previously, you save the default cursor at the start in form_load in a form level variable called olDCursor. You don't change that variable all the way through the program and in form_closed you use that variable to restore the default cursor. Changing the cursor is permanent, which is why i told you you must save and restore the original cursor.

  11. #11

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    It works, now I can have the border as none because I added the HotKey Key.Escape (Esc) to change it back and close.

    Last two things, the image doesn't go to the right place, to click on something the cursor needs to be a little above it. Do you know how to change it? And I noticed that that code only changes the default cursor, can you give me the changing I need to do on the duplicated code to change all (or almost all) the cursors to be the same...
    Name:  Explanation.jpg
Views: 315
Size:  28.9 KB
    Wait, I think I found it. Edgemeal said on the 1st thread (http://www.vbforums.com/showthread.p...=1#post4997799) this link and now that I can understand a little better the code I know I need to change the hcur(OCR_NORMAL) with one of these of this list (https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx).


    SO, now, for the final thing. I only need to set the location of cursor's image where it clicks (which I don't know how, do you?)
    Last edited by rdrmdr; Jan 29th, 2016 at 02:31 PM.

  12. #12
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    the hotspot is built into the cursor file

  13. #13

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Quote Originally Posted by .paul. View Post
    the hotspot is built into the cursor file
    I don't know how to change the HotSpot, I just went to this site https://convertio.co/pt/png-cur/ and converted my custom png documents to cur. Is there a way to change the HotSpot?

  14. #14
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Use this to create your cursors then you can choose the hotspot:

    Code:
    Imports System.Windows.Forms
    Imports System.Runtime.InteropServices
    Imports System.Drawing
    ''' <summary>
    ''' contains API + local functions for creating
    ''' a cursor from a bitmap on the fly
    ''' </summary>
    ''' <remarks></remarks>
    Friend Class create
    
    #Region "   CreateIconIndirect"
    
        Private Structure IconInfo
            Public fIcon As Boolean
            Public xHotspot As Int32
            Public yHotspot As Int32
            Public hbmMask As IntPtr
            Public hbmColor As IntPtr
        End Structure
    
        <DllImport("user32.dll", EntryPoint:="CreateIconIndirect")> _
        Private Shared Function CreateIconIndirect(ByVal iconInfo As IntPtr) As IntPtr
        End Function
    
        <DllImport("user32.dll", CharSet:=CharSet.Auto)> _
        Public Shared Function DestroyIcon(ByVal handle As IntPtr) As Boolean
        End Function
    
        <DllImport("gdi32.dll")> _
        Public Shared Function DeleteObject(ByVal hObject As IntPtr) As Boolean
        End Function
    
        ''' <summary>
        ''' CreateCursor
        ''' </summary>
        ''' <param name="bmp"></param>
        ''' <returns>custom Cursor</returns>
        ''' <remarks>creates a custom cursor from a bitmap</remarks>
        Public Shared Function CreateCursor(ByVal bmp As Bitmap, ByVal xHotspot As Integer, ByVal yHotspot As Integer) As Cursor
            'Setup the Cursors IconInfo
            Dim tmp As New IconInfo
            tmp.xHotspot = xHotspot
            tmp.yHotspot = yHotspot
            tmp.fIcon = False
            tmp.hbmMask = bmp.GetHbitmap()
            tmp.hbmColor = bmp.GetHbitmap()
    
            'Create the Pointer for the Cursor Icon
            Dim pnt As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(tmp))
            Marshal.StructureToPtr(tmp, pnt, True)
            Dim curPtr As IntPtr = CreateIconIndirect(pnt)
    
            'Clean Up
            DestroyIcon(pnt)
            DeleteObject(tmp.hbmMask)
            DeleteObject(tmp.hbmColor)
    
            Return New Cursor(curPtr)
        End Function
    
    #End Region
    
    End Class

  15. #15

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Quote Originally Posted by .paul. View Post
    Use this to create your cursors then you can choose the hotspot:

    Code:
    Imports System.Windows.Forms
    Imports System.Runtime.InteropServices
    Imports System.Drawing
    ''' <summary>
    ''' contains API + local functions for creating
    ''' a cursor from a bitmap on the fly
    ''' </summary>
    ''' <remarks></remarks>
    Friend Class create
    
    #Region "   CreateIconIndirect"
    
        Private Structure IconInfo
            Public fIcon As Boolean
            Public xHotspot As Int32
            Public yHotspot As Int32
            Public hbmMask As IntPtr
            Public hbmColor As IntPtr
        End Structure
    
        <DllImport("user32.dll", EntryPoint:="CreateIconIndirect")> _
        Private Shared Function CreateIconIndirect(ByVal iconInfo As IntPtr) As IntPtr
        End Function
    
        <DllImport("user32.dll", CharSet:=CharSet.Auto)> _
        Public Shared Function DestroyIcon(ByVal handle As IntPtr) As Boolean
        End Function
    
        <DllImport("gdi32.dll")> _
        Public Shared Function DeleteObject(ByVal hObject As IntPtr) As Boolean
        End Function
    
        ''' <summary>
        ''' CreateCursor
        ''' </summary>
        ''' <param name="bmp"></param>
        ''' <returns>custom Cursor</returns>
        ''' <remarks>creates a custom cursor from a bitmap</remarks>
        Public Shared Function CreateCursor(ByVal bmp As Bitmap, ByVal xHotspot As Integer, ByVal yHotspot As Integer) As Cursor
            'Setup the Cursors IconInfo
            Dim tmp As New IconInfo
            tmp.xHotspot = xHotspot
            tmp.yHotspot = yHotspot
            tmp.fIcon = False
            tmp.hbmMask = bmp.GetHbitmap()
            tmp.hbmColor = bmp.GetHbitmap()
    
            'Create the Pointer for the Cursor Icon
            Dim pnt As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(tmp))
            Marshal.StructureToPtr(tmp, pnt, True)
            Dim curPtr As IntPtr = CreateIconIndirect(pnt)
    
            'Clean Up
            DestroyIcon(pnt)
            DeleteObject(tmp.hbmMask)
            DeleteObject(tmp.hbmColor)
    
            Return New Cursor(curPtr)
        End Function
    
    #End Region
    
    End Class
    I added that code and there's no error but it didn't changed anything.
    I know I probably have to change some part or put more code, but your code is big and I have no ideia.
    Can you try to explain a little better?

  16. #16
    eXtreme Programmer .paul.'s Avatar
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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Ok here's a demo project. Remember to read the comments in the form

    cursor from bitmap.zip

  17. #17

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    Re: Change cursor with code, by pressing keys, to the respective document.cur

    Quote Originally Posted by .paul. View Post
    Ok here's a demo project. Remember to read the comments in the form

    cursor from bitmap.zip
    It's some ammount of code but I tried on a new project, changed some stuff, and it worked.
    Now I'm gonna try to apply it on my app.

    Form1.vb
    Code:
    Public Class Form1
        Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
            Dim img2 As New Bitmap(My.Resources._1)
            Dim img As New Bitmap(Cursors.Default.Size.Width + 20, Cursors.Default.Size.Height + 9)
            Dim gr As Graphics = Graphics.FromImage(img)
            Cursors.Default.Draw(gr, New Rectangle(Point.Empty, Cursors.Default.Size))
            gr.DrawImage(img2, New Point(img.Width - 32, img.Height - 32))
            Me.Cursor = create.CreateCursor(img, 10, 10)
        End Sub
    End Class
    create.vb
    Code:
    Imports System.Windows.Forms
    Imports System.Runtime.InteropServices
    Imports System.Drawing
    Friend Class create
    #Region "CreateIconIndirect"
        Private Structure IconInfo
            Public fIcon As Boolean
            Public xHotspot As Int32
            Public yHotspot As Int32
            Public hbmMask As IntPtr
            Public hbmColor As IntPtr
        End Structure
        <DllImport("user32.dll", EntryPoint:="CreateIconIndirect")> Private Shared Function CreateIconIndirect(ByVal iconInfo As IntPtr) As IntPtr
        End Function
        <DllImport("user32.dll", CharSet:=CharSet.Auto)> Public Shared Function DestroyIcon(ByVal handle As IntPtr) As Boolean
        End Function
        <DllImport("gdi32.dll")> Public Shared Function DeleteObject(ByVal hObject As IntPtr) As Boolean
        End Function
        Public Shared Function CreateCursor(ByVal bmp As Bitmap, ByVal xHotspot As Integer, ByVal yHotspot As Integer) As Windows.Forms.Cursor
            Dim tmp As New IconInfo
            tmp.xHotspot = xHotspot
            tmp.yHotspot = yHotspot
            tmp.fIcon = False
            tmp.hbmMask = bmp.GetHbitmap()
            tmp.hbmColor = bmp.GetHbitmap()
            Dim pnt As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(tmp))
            Marshal.StructureToPtr(tmp, pnt, True)
            Dim curPtr As IntPtr = CreateIconIndirect(pnt)
            DestroyIcon(pnt)
            DeleteObject(tmp.hbmMask)
            DeleteObject(tmp.hbmColor)
            Return New Windows.Forms.Cursor(curPtr)
        End Function
    #End Region
    End Class
    Resources
    Name:  1.png
Views: 299
Size:  1.6 KB 1.png




    I tried to attach my project as .rar but it gave error (no problem).
    Random question: How do you add that text in the end of all your posts?
    I think that's all for now, I will try to continue with the project wich, by the way, I had the idea from this cool video: https://www.youtube.com/watch?v=GW_fdXHOWp4
    Thank you very much and see you soon.
    Hint: The next time you see me will be probably a question related to mouse on/off desktop...

  18. #18
    eXtreme Programmer .paul.'s Avatar
    Join Date
    May 2007
    Location
    Chelmsford UK
    Posts
    22,472

    Re: Change cursor with code, by pressing keys, to the respective document.cur

    I'd just use it to create and save some cursors. No need to incorporate it into your project...

  19. #19

    Thread Starter
    Member
    Join Date
    Jan 2016
    Posts
    51

    Re: Change cursor with code, by pressing keys, to the respective document.cur

    I'm trying to understand how to incorporate it on my project because of the hotspot (and because the other way makes the image scretch out for no obvious reason).
    Well, I think I can figure this out. The only thing missing is make so that the created cursor isn't only activated on the form Me.Cursor = create.CreateCursor(img, 10, 10) and a lot of work to put that code creating 9 cursors, put it on the cases statments, test it and purify the code...
    EDIT: Gonna try to create my cursors smaller so that I can use the first methot (I found out that the problem with the hotspot and the scretched image was because the max size is 32x32pixels and the image was 44x32pixels). And I found this helpfull site to create cursors and change the hotspot easly: http://www.cursor.cc/
    [RESOLVED] Thread!
    Last edited by rdrmdr; Jan 29th, 2016 at 09:22 PM.

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