kind of works? reading multiple mice: any c programmers want to look at this?
#23
(09-08-2022, 07:27 PM)Spriggsy Wrote: You don't have to put the headers in the same folder as the other includes. All you have to do is either have it with QB64 or just put it into a subfolder and use the relative path. I typically just keep headers and bas files in the QB64 parent directory. Or I make a subfolder and reference them using the relative paths. For instance, if I have a header in a folder called "Headers" and that folder is in the QB64 parent directory, the declare can look like this:
DECLARE LIBRARY ".\Headers\headername". Also, since you put the headers in the other header folders, you shouldn't use the absolute paths anyways. Just get rid of everything in the path up until the first subfolder of the QB64 parent directory.
For instance:
DECLARE LIBRARY ".\internal\c\c_compiler\x86_64-w64-mingw32\include\headername"

However, I always recommend keeping bas and header files with QB64. Not everyone likes that. I prefer it that way.

Got it, thanks. 

Now for the fun part! 
The code flow seems to be set up like the C program, which is event-driven. 
I see around line 211 there is a DrawText to write the mousemessage to the screen (inside Function MainWndProc). 

How might this be restructured to work like a regular QB64 program that uses a more straightforward linear flow? 

Specifically, how would we merge your mouse magic into the below program, to make option 4 work with it? 

Option 4 calls Sub MouseRawInputTest at line 104, which reads the mice to move some text characters around the screen. 

That routine can be left alone, but we would need to alter these 3 routines to work with your API functions:

At line 290: Function GetRawMouseCount% ()

At line 304: Sub GetRawMouseIDs (arrRawMouseID( 8) As Long)

At line 340: Sub ReadRawMouse (MouseID&, x%, y%, left%, middle%, right%, wheel%, wheelmin%, wheelmax%)

Any thoughts? 

Code: (Select All)
' #############################################################################
' MULTIMOUSE
' ----------
' A proof of concept / experiment to try to get the computer to read
' 2 or mice plugged into the computer, as separate devices,
' to control 2 or more cursors on the screen (for multiplayer games, etc.)
'
' This lets you try 3 different methods:
' 1. _MOUSEX, _MOUSEY, etc.
' 2. _DEVICE commands
' 3. RawInput API
'
' #############################################################################

' CONSTANTS
Const FALSE = 0
Const TRUE = Not FALSE

' UDT TO HOLD THE INFO FOR EACH MOUSE
Type InfoType
    c As String ' cursor character
    x As Integer ' screen x position
    y As Integer ' screen y position
    wheel As Integer ' mouse wheel value
    LeftDown As Integer ' tracks left mouse button state, TRUE=down
    MiddleDown As Integer ' tracks middle mouse button state, TRUE=down
    RightDown As Integer ' tracks right mouse button state, TRUE=down
    LeftCount As Integer ' counts left clicks
    MiddleCount As Integer ' counts middle clicks
    RightCount As Integer ' counts right clicks
End Type ' InfoType

' BASIC PROGRAM METADATA
Dim Shared m_ProgramPath$: m_ProgramPath$ = Left$(Command$(0), _InStrRev(Command$(0), "\"))
Dim Shared m_ProgramName$: m_ProgramName$ = Mid$(Command$(0), _InStrRev(Command$(0), "\") + 1)

' TRY THE MOUSE
main

' FINISH
System ' return control to the operating system
Print m_ProgramName$ + " finished."
End

' =============================================================================
' BEGIN DATA

' MOUSE CURSORS (JUST SOME LETTERS)
CData:
Data A,b,C,D,E,f,G,H

' DEFAULT/INTIAL X COORDINATE OF EACH CURSOR ON SCREEN
XData:
Data 5,15,25,35,45,55,65,75

' DEFAULT/INTIAL Y COORDINATE OF EACH CURSOR ON SCREEN
YData:
Data 17,17,19,19,21,21,23,23

' DEFAULT/INITIAL VALUE OF EACH SCROLL WHEEL
WData:
Data 224,192,160,128,96,64,32,0

' END DATA
' =============================================================================

' /////////////////////////////////////////////////////////////////////////////

Sub main
    Dim in$: in$ = ""
    Do
        Cls
        Print m_ProgramName$
        Print
        Print "How can we get separate input from 2 or more USB mice "
        Print "plugged into one computer?"
        Print
        Print "1. Test using _MOUSEX, _MOUSEY, etc."
        Print
        Print "2. Test using _DEVICE commands"
        Print
        Print "3. Enumerate devices with _DEVICES to try and detect >1 mouse"
        Print
        Print "4. Test using RawInput API"
        Print
        Print "What to do ('q' to exit)"

        Input in$: in$ = LCase$(Left$(in$, 1))
        If in$ = "1" Then
            MouseInputTest in$
        ElseIf in$ = "2" Then
            MouseInputTest in$
        ElseIf in$ = "3" Then
            EnumerateDevices: _KeyClear: '_DELAY 1
        ElseIf in$ = "4" Then
            MouseRawInputTest
        End If
    Loop Until in$ = "q"
End Sub ' main

' /////////////////////////////////////////////////////////////////////////////
' Gets mouse input using RawInput API

Sub MouseRawInputTest
    ' MIN/MAX VALUES
    Const cMinX = 2
    Const cMaxX = 79
    Const cMinY = 16
    Const cMaxY = 24
    Const cMinWheel = 0
    Const cMaxWheel = 255

    ' MAIN VARIABLES
    Dim iCount As Integer ' # OF MICE ATTACHED
    Dim arrRawMouseID(8) As Integer ' device IDs for mice connected to system (guessing this would be a string, dunno)
    Dim arrInfo(8) As InfoType ' STORES INFO FOR EACH MOUSE
    Dim left%, middle%, right% ' temp mouse variables
    Dim iLoop As Integer
    Dim iIndex As Integer

    ' TEMP VARIABLES FOR DISPLAYING FORMATTED VALUES TO SCREEN
    Dim iLen As Integer
    Dim sCount As String
    Dim sX As String
    Dim sY As String
    Dim sWheel As String
    Dim sLeftDown As String
    Dim sMiddleDown As String
    Dim sRightDown As String
    Dim sLeftCount As String
    Dim sMiddleCount As String
    Dim sRightCount As String

    ' COUNT # OF MICE CONNECTED + GET DEVICE IDs
    iCount = GetRawMouseCount% ' THIS FUNCTION WOULD ENUMERATE MICE, SHOULD RETURN 0 FOR NONE
    If (iCount > 8) Then iCount = 8: ' FOR NOW ONLY SUPPORT UPTO 8 MICE
    GetRawMouseIDs arrRawMouseID() ' GET MOUSE IDs
   
    ' INITIALIZE CURSORS, MOUSE STATE, ETC.
    Restore CData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).c
        ' INITIALIZED BELOW: arrInfo(iIndex).x = 0
        ' INITIALIZED BELOW: arrInfo(iIndex).y = 0
        ' INITIALIZED BELOW: arrInfo(iIndex).wheel = 127
        arrInfo(iIndex).LeftDown = FALSE
        arrInfo(iIndex).MiddleDown = FALSE
        arrInfo(iIndex).RightDown = FALSE
        arrInfo(iIndex).LeftCount = 0
        arrInfo(iIndex).MiddleCount = 0
        arrInfo(iIndex).RightCount = 0
    Next iLoop
   
    ' INITIALIZE X COORDINATES
    Restore XData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).x
    Next iLoop
   
    ' INITIALIZE Y COORDINATES
    Restore YData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).y
    Next iLoop
   
    ' INITIALIZE SCROLL WHEEL
    Restore WData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).wheel
    Next iLoop
   
    ' DRAW PLAYING FIELD
    _ScreenMove _Middle
    Cls ' clear screen
    Locate 1, 1: Print "1. PLUG 1-8 MICE INTO THE COMPUTER"
    Locate 2, 1: Print "2. USE MICE TO POSITION LETTERS ON SCREEN"
    Locate 3, 1: Print "3. PRESS <ESC> TO QUIT"
    Locate 4, 1: Print "--------------------------------------------------------------------------------";
    Locate 5, 1: Print "#  X  Y  Wheel LeftDown MiddleDown RightDown LeftCount MiddleCount RightCount   "
    Locate 6, 1: Print "--------------------------------------------------------------------------------";
   
    ' NOTE: LEAVE THE NEXT 8 LINES FREE (ROWS 8-15)
    '       TO DISPLAY TEST VALUES FOR UPTO 8 MICE
   
    ' DRAW BORDER AROUND PLAYING FIELD
    DrawTextLine cMinX - 1, cMinY - 1, cMinX - 1, cMaxY + 1, "#"
    DrawTextLine cMinX - 1, cMinY - 1, cMaxX + 1, cMinY - 1, "#"
    DrawTextLine cMaxX + 1, cMaxY + 1, cMaxX + 1, cMinY - 1, "#"
    DrawTextLine cMaxX + 1, cMaxY + 1, cMinX - 1, cMaxY + 1, "#"
   
    ' GET INPUT AND MOVE PLAYERS
    Do
        iIndex = LBound(arrInfo) - 1
        For iLoop = 1 To iCount
            iIndex = iIndex + 1
           
            ' ERASE CURSORS AT CURRENT POSITION
            Locate arrInfo(iIndex).y, arrInfo(iIndex).x: Print " ";
           
            ' GET NEXT MOUSE INPUT
            ReadRawMouse arrRawMouseID(iIndex), x%, y%, left%, middle%, right%, wheel%, wheelmin%, wheelmax%
           
            ' HANDLE LEFT MOUSE BUTTON
            If left% Then
                If arrInfo(iIndex).LeftDown = FALSE Then
                    ' BUTTON DOWN EVENT
                    arrInfo(iIndex).LeftDown = TRUE
                    arrInfo(iIndex).LeftCount = arrInfo(iIndex).LeftCount + 1
                End If
            Else
                If arrInfo(iIndex).LeftDown = TRUE Then
                    ' BUTTON UP EVENT
                    arrInfo(iIndex).LeftDown = FALSE
                End If
            End If
           
            ' HANDLE MIDDLE MOUSE BUTTON (SCROLL WHEEL BUTTON)
            If middle% Then
                If arrInfo(iIndex).MiddleDown = FALSE Then
                    ' BUTTON DOWN EVENT
                    arrInfo(iIndex).MiddleDown = TRUE
                    arrInfo(iIndex).MiddleCount = arrInfo(iIndex).MiddleCount + 1
                End If
            Else
                If arrInfo(iIndex).MiddleDown = TRUE Then
                    ' BUTTON UP EVENT
                    arrInfo(iIndex).MiddleDown = FALSE
                End If
            End If
           
            ' HANDLE RIGHT MOUSE BUTTON
            If right% Then
                If arrInfo(iIndex).RightDown = FALSE Then
                    ' BUTTON DOWN EVENT
                    arrInfo(iIndex).RightDown = TRUE
                    arrInfo(iIndex).RightCount = arrInfo(iIndex).RightCount + 1
                End If
            Else
                If arrInfo(iIndex).RightDown = TRUE Then
                    ' BUTTON UP EVENT
                    arrInfo(iIndex).RightDown = FALSE
                End If
            End If
           
            ' CHECK BOUNDARIES
            If arrInfo(iIndex).x < cMinX Then arrInfo(iIndex).x = cMinX
            If arrInfo(iIndex).x > cMaxX Then arrInfo(iIndex).x = cMaxX
            If arrInfo(iIndex).y < cMinY Then arrInfo(iIndex).y = cMinY
            If arrInfo(iIndex).y > cMaxY Then arrInfo(iIndex).y = cMaxY
           
            ' PLOT CURSOR
            Locate arrInfo(iIndex).y, arrInfo(iIndex).x: Print arrInfo(iIndex).c;
           
            ' DISPLAY VARIABLES
            iLen = 3: sCount = Left$(LTrim$(RTrim$(Str$(iLoop))) + String$(iLen, " "), iLen)
            iLen = 3: sX = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).x))) + String$(iLen, " "), iLen)
            iLen = 3: sY = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).y))) + String$(iLen, " "), iLen)
            iLen = 6: sWheel = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).wheel))) + String$(iLen, " "), iLen)
            iLen = 9: sLeftDown = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).LeftDown))) + String$(iLen, " "), iLen)
            iLen = 11: sMiddleDown = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).MiddleDown))) + String$(iLen, " "), iLen)
            iLen = 10: sRightDown = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).RightDown))) + String$(iLen, " "), iLen)
            iLen = 10: sLeftCount = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).LeftCount))) + String$(iLen, " "), iLen)
            iLen = 12: sMiddleCount = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).MiddleCount))) + String$(iLen, " "), iLen)
            iLen = 11: sRightCount = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).RightCount))) + String$(iLen, " "), iLen)
           
            'LOCATE 5,       1: PRINT "#  X  Y  Wheel LeftDown MiddleDown RightDown LeftCount MiddleCount RightCount   "
            Locate 6 + iLoop, 1: Print sCount + sX + sY + sWheel + sLeftDown + sMiddleDown + sRightDown + sLeftCount + sMiddleCount + sRightCount
        Next iLoop
       
        _Limit 100 ' keep loop at 100 frames per second
    Loop Until _KeyDown(27) ' escape key exit
    _KeyClear: '_DELAY 1
End Sub ' MouseRawInputTest

' /////////////////////////////////////////////////////////////////////////////
' Returns a count of # of RawInput mouse devices connected to the system

' *****************************************************************************
' TODO: GET COUNT FROM RawInput API
' For now, hardcoded to 1 until we figure out how to do this.
' *****************************************************************************
Function GetRawMouseCount% ()
    GetRawMouseCount% = 1
End Function ' GetRawMouseCount%

' /////////////////////////////////////////////////////////////////////////////
' Gets ID (really just the index)
' of each RawInput mouse device connected to the system (for now upto 8)
' and returns the IDs in an array of LONG
' If no mouse found, the ID will just be 0.

' *****************************************************************************
' TODO: GET THIS FROM RawInput API
' For now, hardcoded arrRawMouseID(1) to 1, and the rest 0, until we figure out how to do this.
' *****************************************************************************
Sub GetRawMouseIDs (arrRawMouseID( 8) As Integer)
    Dim iLoop As Integer

    ' CLEAR OUT IDs
    For iLoop = 1 To 8
        arrRawMouseID(iLoop) = 0
    Next iLoop

    ' GET IDs
    'TODO: get this from RawInput API
    arrRawMouseID(1) = 1 ' for now just fudge it!
   
End Sub ' GetRawMouseIDs

' /////////////////////////////////////////////////////////////////////////////
' Read mouse using RawInput API

' Gets input from mouse, MouseID% = which mouse

' NOTE: click events (mouse up/mouse down) are handled by the calling sub,
'       this routine just sends back
'       TRUE if the given button is currently down or FALSE if it is up.

' Parameters (input only):
' MouseID% = which mouse to return input for
' wheelmin% = minimum value to allow wheel% to be decremented to
' wheelmax% = maximum value to allow wheel% to be incremened to

' Parameters (values returned):
' x% = mouse x position
' y% = mouse y position
' left% = current state of left mouse button (up or down)
' middle% = current state of middle mouse button / scroll wheel button (up or down)
' right% = current state of right mouse button (up or down)
' wheel% = value of mouse scroll wheel (passed in and incremented/decremented by 1 if wheel move detected)

Sub ReadRawMouse (MouseID%, x%, y%, left%, middle%, right%, wheel%, wheelmin%, wheelmax%)
    Dim scrollAmount%
    Dim dx%
    Dim dy%
   
    ' =============================================================================
    ' BEGIN READ MOUSE THE NEW RawInput WAY:
   
    ' read scroll wheel
    'TODO: get this from RawInput API
   
    ' determine mouse x position
    'TODO: get this from RawInput API
    dx% = 0 ' = getMouseDx(MouseID%)
    x% = x% + dx% ' adjust mouse value by dx
   
    ' determine mouse y position
    'TODO: get this from RawInput API
    dy% = 0 ' = getMouseDy(MouseID%)
    y% = y% + dy% ' adjust mouse value by dx
   
    ' read mouse buttons
    'TODO: get this from RawInput API
    left% = FALSE
    middle% = FALSE
    right% = FALSE
   
    ' END READ MOUSE THE NEW RawInput WAY:
    ' =============================================================================
   
    ' =============================================================================
    ' BEGIN READ MOUSE THE OLD QB64 WAY:
    '
    '' read scroll wheel
    'WHILE _MOUSEINPUT ' get latest mouse information
    '    scrollAmount% = _MOUSEWHEEL ' (Returns -1 when scrolling up and 1 when scrolling down with 0 indicating no movement since last read.)
    '    IF (scrollAmount% = -1) AND (wheel% > wheelmin%) THEN
    '        wheel% = wheel% + scrollAmount%
    '    ELSEIF (scrollAmount% = 1) AND (wheel% < wheelmax%) THEN
    '        wheel% = wheel% + scrollAmount%
    '    END IF
    'WEND
    '
    '' determine mouse x position
    'x% = _MOUSEX
    '
    '' determine mouse y position
    'y% = _MOUSEY
    '
    '' read mouse buttons
    'left% = _MOUSEBUTTON(1)
    'middle% = _MOUSEBUTTON(3)
    'right% = _MOUSEBUTTON(2)
    '
    ' END READ MOUSE THE OLD QB64 WAY:
    ' =============================================================================
   
End Sub ' ReadRawMouse

' /////////////////////////////////////////////////////////////////////////////
' Gets mouse input using _MOUSEX, _MOUSEY, _MOUSEBUTTON commands.

Sub MouseInputTest (in$)
    ' MIN/MAX VALUES
    Const cMinX = 2
    Const cMaxX = 79
    Const cMinY = 16
    Const cMaxY = 24
    Const cMinWheel = 0
    Const cMaxWheel = 255

    ' MAIN VARIABLES
    Dim iCount As Integer ' # OF MICE ATTACHED
    Dim arrMouseID(8) As String ' device IDs for mice connected to system (guessing this would be a string, dunno)
    Dim arrInfo(8) As InfoType ' STORES INFO FOR EACH MOUSE
    Dim left%, middle%, right% ' temp mouse variables
    Dim iLoop As Integer
    Dim iIndex As Integer

    ' TEMP VARIABLES FOR DISPLAYING FORMATTED VALUES TO SCREEN
    Dim iLen As Integer
    Dim sCount As String
    Dim sX As String
    Dim sY As String
    Dim sWheel As String
    Dim sLeftDown As String
    Dim sMiddleDown As String
    Dim sRightDown As String
    Dim sLeftCount As String
    Dim sMiddleCount As String
    Dim sRightCount As String

    ' COUNT # OF MICE CONNECTED + GET DEVICE IDs
    iCount = GetMouseCount% ' THIS FUNCTION WOULD ENUMERATE MICE, SHOULD RETURN 1+
    If (iCount > 8) Then iCount = 8: ' FOR NOW ONLY SUPPORT UPTO 8 MICE
    GetMouseIDs arrMouseID() ' GET MOUSE IDs

    ' INITIALIZE CURSORS, MOUSE STATE, ETC.
    Restore CData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).c
        ' INITIALIZED BELOW: arrInfo(iIndex).x = 0
        ' INITIALIZED BELOW: arrInfo(iIndex).y = 0
        ' INITIALIZED BELOW: arrInfo(iIndex).wheel = 127
        arrInfo(iIndex).LeftDown = FALSE
        arrInfo(iIndex).MiddleDown = FALSE
        arrInfo(iIndex).RightDown = FALSE
        arrInfo(iIndex).LeftCount = 0
        arrInfo(iIndex).MiddleCount = 0
        arrInfo(iIndex).RightCount = 0
    Next iLoop

    ' INITIALIZE X COORDINATES
    Restore XData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).x
    Next iLoop

    ' INITIALIZE Y COORDINATES
    Restore YData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).y
    Next iLoop

    ' INITIALIZE SCROLL WHEEL
    Restore WData
    iIndex = LBound(arrInfo) - 1
    For iLoop = 1 To iCount
        iIndex = iIndex + 1
        Read arrInfo(iIndex).wheel
    Next iLoop

    ' DRAW PLAYING FIELD
    _ScreenMove _Middle
    Cls ' clear screen
    Locate 1, 1: Print "1. PLUG 1-8 MICE INTO THE COMPUTER"
    Locate 2, 1: Print "2. USE MICE TO POSITION LETTERS ON SCREEN"
    Locate 3, 1: Print "3. PRESS <ESC> TO QUIT"
    Locate 4, 1: Print "--------------------------------------------------------------------------------";
    Locate 5, 1: Print "#  X  Y  Wheel LeftDown MiddleDown RightDown LeftCount MiddleCount RightCount   "
    Locate 6, 1: Print "--------------------------------------------------------------------------------";

    ' NOTE: LEAVE THE NEXT 8 LINES FREE (ROWS 8-15)
    '       TO DISPLAY TEST VALUES FOR UPTO 8 MICE

    ' DRAW BORDER AROUND PLAYING FIELD
    DrawTextLine cMinX - 1, cMinY - 1, cMinX - 1, cMaxY + 1, "#"
    DrawTextLine cMinX - 1, cMinY - 1, cMaxX + 1, cMinY - 1, "#"
    DrawTextLine cMaxX + 1, cMaxY + 1, cMaxX + 1, cMinY - 1, "#"
    DrawTextLine cMaxX + 1, cMaxY + 1, cMinX - 1, cMaxY + 1, "#"

    ' GET INPUT AND MOVE PLAYERS
    Do
        iIndex = LBound(arrInfo) - 1
        For iLoop = 1 To iCount
            iIndex = iIndex + 1

            ' ERASE CURSORS AT CURRENT POSITION
            Locate arrInfo(iIndex).y, arrInfo(iIndex).x: Print " ";

            ' GET NEXT MOUSE INPUT
            If in$ = "1" Then
                ReadMouse1 arrMouseID(iIndex), arrInfo(iIndex).x, arrInfo(iIndex).y, left%, middle%, right%, arrInfo(iIndex).wheel, cMinWheel, cMaxWheel
            ElseIf in$ = "2" Then
                ReadMouse2 arrMouseID(iIndex), arrInfo(iIndex).x, arrInfo(iIndex).y, left%, middle%, right%, arrInfo(iIndex).wheel, cMinWheel, cMaxWheel
            End If

            ' HANDLE LEFT MOUSE BUTTON
            If left% Then
                If arrInfo(iIndex).LeftDown = FALSE Then
                    ' BUTTON DOWN EVENT
                    arrInfo(iIndex).LeftDown = TRUE
                    arrInfo(iIndex).LeftCount = arrInfo(iIndex).LeftCount + 1
                End If
            Else
                If arrInfo(iIndex).LeftDown = TRUE Then
                    ' BUTTON UP EVENT
                    arrInfo(iIndex).LeftDown = FALSE
                End If
            End If

            ' HANDLE MIDDLE MOUSE BUTTON (SCROLL WHEEL BUTTON)
            If middle% Then
                If arrInfo(iIndex).MiddleDown = FALSE Then
                    ' BUTTON DOWN EVENT
                    arrInfo(iIndex).MiddleDown = TRUE
                    arrInfo(iIndex).MiddleCount = arrInfo(iIndex).MiddleCount + 1
                End If
            Else
                If arrInfo(iIndex).MiddleDown = TRUE Then
                    ' BUTTON UP EVENT
                    arrInfo(iIndex).MiddleDown = FALSE
                End If
            End If

            ' HANDLE RIGHT MOUSE BUTTON
            If right% Then
                If arrInfo(iIndex).RightDown = FALSE Then
                    ' BUTTON DOWN EVENT
                    arrInfo(iIndex).RightDown = TRUE
                    arrInfo(iIndex).RightCount = arrInfo(iIndex).RightCount + 1
                End If
            Else
                If arrInfo(iIndex).RightDown = TRUE Then
                    ' BUTTON UP EVENT
                    arrInfo(iIndex).RightDown = FALSE
                End If
            End If

            ' CHECK BOUNDARIES
            If arrInfo(iIndex).x < cMinX Then arrInfo(iIndex).x = cMinX
            If arrInfo(iIndex).x > cMaxX Then arrInfo(iIndex).x = cMaxX
            If arrInfo(iIndex).y < cMinY Then arrInfo(iIndex).y = cMinY
            If arrInfo(iIndex).y > cMaxY Then arrInfo(iIndex).y = cMaxY

            ' PLOT CURSOR
            Locate arrInfo(iIndex).y, arrInfo(iIndex).x: Print arrInfo(iIndex).c;

            ' DISPLAY VARIABLES
            iLen = 3: sCount = Left$(LTrim$(RTrim$(Str$(iLoop))) + String$(iLen, " "), iLen)
            iLen = 3: sX = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).x))) + String$(iLen, " "), iLen)
            iLen = 3: sY = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).y))) + String$(iLen, " "), iLen)
            iLen = 6: sWheel = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).wheel))) + String$(iLen, " "), iLen)
            iLen = 9: sLeftDown = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).LeftDown))) + String$(iLen, " "), iLen)
            iLen = 11: sMiddleDown = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).MiddleDown))) + String$(iLen, " "), iLen)
            iLen = 10: sRightDown = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).RightDown))) + String$(iLen, " "), iLen)
            iLen = 10: sLeftCount = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).LeftCount))) + String$(iLen, " "), iLen)
            iLen = 12: sMiddleCount = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).MiddleCount))) + String$(iLen, " "), iLen)
            iLen = 11: sRightCount = Left$(LTrim$(RTrim$(Str$(arrInfo(iIndex).RightCount))) + String$(iLen, " "), iLen)

            'LOCATE 5,       1: PRINT "#  X  Y  Wheel LeftDown MiddleDown RightDown LeftCount MiddleCount RightCount   "
            Locate 6 + iLoop, 1: Print sCount + sX + sY + sWheel + sLeftDown + sMiddleDown + sRightDown + sLeftCount + sMiddleCount + sRightCount

        Next iLoop

        _Limit 100 ' keep loop at 100 frames per second
    Loop Until _KeyDown(27) ' escape key exit
    _KeyClear: '_DELAY 1
End Sub ' MouseInputTest

' /////////////////////////////////////////////////////////////////////////////
' Returns a count of # of mouse devices connected to the system

' *** Currently hardcoded to 1 until we figure out how to do this. ***

Function GetMouseCount% ()
    GetMouseCount% = 1
End Function ' GetMouseCount%

' /////////////////////////////////////////////////////////////////////////////
' Gets ID of each mouse device connected to the system (for now upto 8)
' and returns the IDs in an array of strings
' (assuming the ID is a string and not numeric?).
' If no mouse found, the ID will just be a blank string.

' *** Currently hardcoded to "1" until we figure out how to do this. ***

Sub GetMouseIDs (arrMouseID( 8) As String)
    Dim iLoop As Integer

    ' CLEAR OUT IDs
    For iLoop = 1 To 8
        arrMouseID(iLoop) = ""
    Next iLoop

    ' GET IDs
    arrMouseID(1) = "1" ' for now just fudge it!

End Sub ' GetMouseCount%

' /////////////////////////////////////////////////////////////////////////////
' Read mouse method #1, using _MOUSEX, _MOUSEY, etc.

' Gets input from mouse identified by deviceid$
' (or does that needs to be an ordinal position?)

' For version 1 we only return the input from the one mouse
' regardless of deviceid$.

' NOTE: click events (mouse up/mouse down) are handled by the calling sub,
'       this routine just sends back
'       TRUE if the given button is currently down or FALSE if it is up.

' Parameters (values returned):
' x% = x position of mouse pointer
' y% = y position of mouse pointer
' left% = current state of left mouse button (up or down)
' middle% = current state of middle mouse button / scroll wheel button (up or down)
' right% = current state of right mouse button (up or down)
' wheel% = value of mouse scroll wheel (passed in and incremented/decremented by 1 if wheel move detected)

' Parameters (input only):
' wheelmin% = minimum value to allow wheel% to be decremented to
' wheelmax% = maximum value to allow wheel% to be incremened to

Sub ReadMouse1 (deviceid$, x%, y%, left%, middle%, right%, wheel%, wheelmin%, wheelmax%)
    Dim scrollAmount%

    ' read scroll wheel
    While _MouseInput ' get latest mouse information
        scrollAmount% = _MouseWheel ' (Returns -1 when scrolling up and 1 when scrolling down with 0 indicating no movement since last read.)
        If (scrollAmount% = -1) And (wheel% > wheelmin%) Then
            wheel% = wheel% + scrollAmount%
        ElseIf (scrollAmount% = 1) And (wheel% < wheelmax%) Then
            wheel% = wheel% + scrollAmount%
        End If
    Wend

    ' read x position
    x% = _MouseX

    ' read y position
    y% = _MouseY

    ' read mouse buttons
    left% = _MouseButton(1)
    middle% = _MouseButton(3)
    right% = _MouseButton(2)

End Sub ' ReadMouse1

' /////////////////////////////////////////////////////////////////////////////
' Read mouse method #2, using _DEVICE commands.

' Gets input from mouse identified by deviceid$
' (or does that needs to be an ordinal position?)

' For version 1 we only return the input from the one mouse
' regardless of deviceid$.

' NOTE: click events (mouse up/mouse down) are handled by the calling sub,
'       this routine just sends back
'       TRUE if the given button is currently down or FALSE if it is up.

' Parameters (values returned):
' x% = x position of mouse pointer
' y% = y position of mouse pointer
' left% = current state of left mouse button (up or down)
' middle% = current state of middle mouse button / scroll wheel button (up or down)
' right% = current state of right mouse button (up or down)
' wheel% = value of mouse scroll wheel (passed in and incremented/decremented by 1 if wheel move detected)

' Parameters (input only):
' wheelmin% = minimum value to allow wheel% to be decremented to
' wheelmax% = maximum value to allow wheel% to be incremened to

Sub ReadMouse2 (deviceid$, x%, y%, left%, middle%, right%, wheel%, wheelmin%, wheelmax%)
    Dim scrollAmount%
    Dim ScreenWidth% ' screen width
    Dim ScreenHeight% ' screen height

    ' read scroll wheel
    While _DeviceInput(2) ' clear and update the mouse buffer
        scrollAmount% = _Wheel(3)
        If (scrollAmount% = -1) And (wheel% > wheelmin%) Then
            wheel% = wheel% + scrollAmount%
        ElseIf (scrollAmount% = 1) And (wheel% < wheelmax%) Then
            wheel% = wheel% + scrollAmount%
        End If
    Wend ' clear and update the mouse buffer

    ' read x position
    ScreenWidth% = _Width \ 2
    x% = _Axis(1) * ScreenWidth% + ScreenWidth%

    ' read y position
    ScreenHeight% = _Height \ 2
    y% = _Axis(2) * ScreenHeight% + ScreenHeight%

    ' read mouse buttons
    left% = _Button(1)
    middle% = _Button(2)
    right% = _Button(3)

End Sub ' ReadMouse2

' /////////////////////////////////////////////////////////////////////////////
' ORIGINAL VERSION OF FUNCTION FOR READING MOUSE WITH _DEVICE:

' Gets mouse input using _DEVICE commands (part 2 of 2, subroutine)

' SOURCE : https://www.qb64.org/forum/index.php?topic=1087.0
' Subject: Mouse demo using _DEVICE commands
' From   : SMcNeill
' Date   : February 21, 2019, 06:15:28 AM »

Sub UpdateMouseInfo (MouseX As Integer, MouseY As Integer, MOUSEWHEEL As Integer, LeftMouse As Integer, RightMouse As Integer, MiddleMouse As Integer, ClickThreshold As Single)
    Dim SW As Integer, SH As Integer
    Dim LM As Integer, MM As Integer, RM As Integer

    Static leftdown As Single, middledown As Single, rightdown As Single

    While _DeviceInput(2): MOUSEWHEEL = MOUSEWHEEL + _Wheel(3): Wend 'clear and update the mouse buffer

    SW = _Width \ 2: SH = _Height \ 2
    MouseX = _Axis(1) * SW + SW: MouseY = _Axis(2) * SH + SH



    LM = _Button(1): MM = _Button(2): RM = _Button(3)

    If leftdown Then 'if it was down
        If LM = 0 Then 'and is now up
            If Timer - leftdown < ClickThreshold Then
                LeftMouse = 2 'clicked
            Else 'if it's still down
                LeftMouse = 0 'the mouse was just released
            End If
            leftdown = 0 'timer is cleared either way
        Else
            LeftMouse = 1 'the left mouse is down , timer should have already been set
        End If
    Else
        If LM Then
            leftdown = Timer 'set the timer to see if we have click or hold events
            LeftMouse = 1 'the left mouse is down
        Else
            LeftMouse = 0
        End If
    End If

    If middledown Then 'if it was down
        If MM = 0 Then 'and is now up
            If Timer - middledown < ClickThreshold Then
                MiddleMouse = 2 'clicked
            Else 'if it's still down
                MiddleMouse = 0 'the mouse was just released
            End If
            middledown = 0 'timer is cleared either way
        Else
            MiddleMouse = 1 'the middle mouse is down , timer should have already been set
        End If
    Else
        If MM Then
            middledown = Timer 'set the timer to see if we have click or hold events
            MiddleMouse = 1 'the middle mouse is down
        Else
            MiddleMouse = 0
        End If
    End If

    If rightdown Then 'if it was down
        If RM = 0 Then 'and is now up
            If Timer - rightdown < ClickThreshold Then
                RightMouse = 2 'clicked
            Else 'if it's still down
                RightMouse = 0 'the mouse was just released
            End If
            rightdown = 0 'timer is cleared either way
        Else
            RightMouse = 1 'the right mouse is down , timer should have already been set
        End If
    Else
        If RM Then
            rightdown = Timer 'set the timer to see if we have click or hold events
            RightMouse = 1 'the right mouse is down
        Else
            RightMouse = 0
        End If
    End If


End Sub ' UpdateMouseInfo

' /////////////////////////////////////////////////////////////////////////////
' Example: Checking for the system's input devices.

' _DEVICES FUNCTION (QB64 REFERENCE)
' http://www.qb64.net/wiki/index_title_DEVICES/
'
' The _DEVICES function returns the number of INPUT devices on your computer
' including keyboard, mouse and game devices.
'
' Syntax:
'
' device_count% = _DEVICES
'
' Returns the number of devices that can be listed separately with the _DEVICE$
' function by the device number.
' Devices include keyboard, mouse, joysticks, game pads and multiple stick game
' controllers.
' Note: This function MUST be read before trying to use the _DEVICE$,
' _DEVICEINPUT or _LAST control functions!

' Note: The STRIG/STICK commands won't read from the keyboard
'       or mouse device the above example lists.

Sub EnumerateDevices
    Dim devices%
    Dim iLoop%
    Dim sCount$
    Dim iLen As Integer

    devices% = _Devices ' MUST be read in order for other 2 device functions to work!

    Cls
    Print "Total devices found: "; Str$(devices%)
    For iLoop% = 1 To devices%
        iLen = 4
        sCount$ = Left$(LTrim$(RTrim$(Str$(iLoop%))) + String$(iLen, " "), iLen)
        Print sCount$ + _Device$(iLoop%) + " (" + LTrim$(RTrim$(Str$(_LastButton(iLoop%)))) + " buttons)"
    Next iLoop%
    Print
    Print "PRESS <ESC> TO CONTINUE"
    Do: Loop Until _KeyDown(27) ' leave loop when ESC key pressed
    _KeyClear: '_DELAY 1

End Sub ' EnumerateDevices

' /////////////////////////////////////////////////////////////////////////////
' based on code from:
' Qbasic Programs - Download free bas source code
' http://www.thedubber.altervista.org/qbsrc.htm

Sub DrawTextLine (y%, x%, y2%, x2%, c$)
    'bError% = FALSE
    'LOCATE 2, 2: PRINT "(" + STR$(x%) + "," + STR$(y%) + ") to (" + STR$(x2%) + "," + STR$(y2%) + ") of " + CHR$(34) + c$ + CHR$(34);

    i% = 0: steep% = 0: e% = 0
    If (x2% - x%) > 0 Then sx% = 1: Else sx% = -1
    dx% = Abs(x2% - x%)
    If (y2% - y%) > 0 Then sy% = 1: Else sy% = -1
    dy% = Abs(y2% - y%)
    If (dy% > dx%) Then
        steep% = 1
        Swap x%, y%
        Swap dx%, dy%
        Swap sx%, sy%
    End If
    e% = 2 * dy% - dx%
    For i% = 0 To dx% - 1
        If steep% = 1 Then
            'PSET (y%, x%), c%:
            Locate y%, x%
            Print c$;
        Else
            'PSET (x%, y%), c%
            Locate x%, y%
            Print c$;
        End If

        While e% >= 0
            y% = y% + sy%: e% = e% - 2 * dx%
        Wend
        x% = x% + sx%: e% = e% + 2 * dy%
    Next
    'PSET (x2%, y2%), c%
    Locate x2%, y2%
    Print c$;

End Sub ' DrawTextLine

' ################################################################################################################################################################
' #REFERENCE

' =============================================================================
' SOME USEFUL STUFF FOR REFERENCE:

' Type Name               Type suffix symbol   Minimum value                  Maximum value                Size in Bytes
' ---------------------   ------------------   ----------------------------   --------------------------   -------------
' _BIT                    `                    -1                             0                            1/8
' _BIT * n                `n                   -128                           127                          n/8
' _UNSIGNED _BIT          ~`                   0                              1                            1/8
' _BYTE                   %%                   -128                           127                          1
' _UNSIGNED _BYTE         ~%%                  0                              255                          1
' INTEGER                 %                    -32,768                        32,767                       2
' _UNSIGNED INTEGER       ~%                   0                              65,535                       2
' LONG                    &                    -2,147,483,648                 2,147,483,647                4
' _UNSIGNED LONG          ~&                   0                              4,294,967,295                4
' _INTEGER64              &&                   -9,223,372,036,854,775,808     9,223,372,036,854,775,807    8
' _UNSIGNED _INTEGER64    ~&&                  0                              18,446,744,073,709,551,615   8
' SINGLE                  ! or none            -2.802597E-45                  +3.402823E+38                4
' DOUBLE                  #                    -4.490656458412465E-324        +1.797693134862310E+308      8
' _FLOAT                  ##                   -1.18E-4932                    +1.18E+4932                  32(10 used)
' _OFFSET                 %&                   -9,223,372,036,854,775,808     9,223,372,036,854,775,807    Use LEN
' _UNSIGNED _OFFSET       ~%&                  0                              18,446,744,073,709,551,615   Use LEN
' _MEM                    none                 combined memory variable type  N/A                          Use LEN

' div: int1% = num1% \ den1%
' mod: rem1% = num1% MOD den1%

' @END
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Messages In This Thread
RE: kind of works? reading multiple mice: any c programmers want to look at this? - by madscijr - 09-08-2022, 08:43 PM



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