Hello, I am new to VB6 and am trying to get throught Jonathan S. Harbours book Game Programing For Teens. I am trying to load a bitmap image onto the screen and like I think make a program so I can use this code in the future..... I think.... but I Keep getting error messages on my code can someone please help.
Private Sub DrawTile( _
ByRef source As Direct3DSurface8, _
ByVal sourcex As Long, _
ByVal sourcey As Long, _
ByVal width As Long, _
ByVal height As Long, _
ByVal destx As Long, _
ByVal desty As Long)
'create a RECT to describe the source image
Dim sourceRect As DxVBLibA.RECT
'set the upper left corner of the source image
sourceRect.Left = sourcex
sourceRect.Top = sourcey
'set the bottom right corner of the source image
sourceRect.Right = sourcex + width
sourceRect.bottom = sourcey + height
'create a POINT to define the destination
Dim point1 As DxVBLibA.Point
'set the upper left corner of where to draw the image
point1.x = destx
point1.y = desty
'draw the source bitmap tile image
d3ddev.CopyRects source, sourceRect, 1, backbuffer, point1
End Sub
'make sure every variable is declared
Option Explicit
'make all arrays start with 0 instead of 1
Option Base 0
'customize the program here
Const SCREENWIDTH As Long = 800
Const SCREENHEIGHT As Long = 600
Const FULLSCREEN As Boolean = False
Const C_BLACK As Long = &H0
Const C_RED As Long = &HFF0000
'the DirectX objects
Dim dx As DirectX8
Dim d3d As Direct3D8
Dim d3dx As New D3DX8
Dim dispmode As D3DDISPLAYMODE
Dim d3dpp As D3DPRESENT_PARAMETERS
Dim d3ddev As Direct3DDevice8
'some surfaces
Dim backbuffer As Direct3DSurface8
Dim castle As Direct3DSurface8
Private Sub Form_Load()
'set up the main form
Form1.Caption = "DrawTile"
Form1.AutoRedraw = False
Form1.BorderStyle = 1
Form1.ClipControls = False
Form1.ScaleMode = 3
Form1.width = Screen.TwipsPerPixelX * (SCREENWIDTH + 12)
Form1.height = Screen.TwipsPerPixelY * (SCREENHEIGHT + 30)
Form1.Show
'initialize Direct3D
InitDirect3D Me.hwnd, SCREENWIDTH, SCREENHEIGHT, FULLSCREEN
'get reference to the back buffer
Set backbuffer = d3ddev.GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO)
'load the bitmap file--castle.bmp is 1024x1024
Set castle = LoadSurface(App.Path & "\castle.bmp", 1024, 1024)
End Sub
Public Sub InitDirect3D( _
ByVal hwnd As Long, _
ByVal lWidth As Long, _
ByVal lHeight As Long, _
ByVal bFullscreen As Boolean)
'catch any errors here
On Local Error GoTo fatal_error
'create the DirectX object
Set dx = New DirectX8
'create the Direct3D object
Set dx = New DirectX8
'create the DirectX object
Set dx = New DirectX8
'create the Direct3D object
Set d3d = dx.Direct3DCreate()
If d3d Is Nothing Then
MsgBox "Error initializing Direct3D!"
Shutdown
End If
'tell D3D to use the current color depth
d3d.GetAdapterDisplayMode D3DADAPTER_DEFAULT, dispmode
'set the display settings used to create the device
Dim d3dpp As D3DPRESENT_PARAMETERS
d3dpp.hDeviceWindow = hwnd
d3dpp.BackBufferCount = 1
d3dpp.BackBufferWidth = lWidth
d3dpp.BackBufferHeight = lHeight
d3dpp.SwapEffect = D3DSWAPEFFECT_COPY_VSYNC
d3dpp.BackBufferFormat = dispmode.Format
'set windowed or fullscreen mode
If bFullscreen Then
d3dpp.Windowed = 0
Else
d3dpp.Windowed = 1
End If
'chapter 9
d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE
d3dpp.AutoDepthStencilFormat = D3DMULTISAMPLE_NONE
d3dpp.AutoDepthStencilFormat = D3DFMT_D32
'create the D3D primary device
Set d3ddev = d3d.CreeateDevice( _
D3DADAPTER_DEFAULT, _
D3DDEVTYPE_HAL, _
hwnd, _
D3DCREATE_SOFTWARE_VERTEXPROCESSING, _
d3dpp)
If d3ddev Is Nothing Then
MsgBox "Error creating the Direct3D device!"
Shutdown
End Sub
Private Sub Form_Paint()
'clear the background of the screen
d3ddeb.Clear 0, ByVal 0, D3DCLEAR_TARGET, C_BLACK, 1, 0
'draw the castle bitmap "tile" image
DrawTile castle, 0, 0, 511, 511, 25, 25
'send the back buffer to the screen
d3ddev.Present ByVal 0, ByVal 0, 0, ByVal 0
End Sub
Private Sub FormKeyDown(KeyCode As Integer, Shift As Integer)
If KeyCode = 27 Then Shutdown
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
Shutdown
End Sub
Private Sub Shutdown()
Set castle = Nothing
Set d3ddev = Nothing
Set d3d = Nothing
Set dx = Nothing
End
End Sub
Private Function LoadSurface( _
ByVal filename As String, _
ByVal width As Long, _
ByVal height As Long) _
As Direct3DSurface8
On Local Error GoTo fatal_error
Dim surf As Direct3DSurface8
'return error by default
Set LoadSurface = Nothing
'create the new surface
Set surf = d3ddev.CreateImageSurface(width, height, dispmode.Format)
If surf Is Nothing Then
MsgBox "Error creating surface!"
Exit Function
End If
'load surface from file
d3dx.LoadSurfaceFromFile _
surf, _
ByVal 0, _
ByVal 0, _
filename, _
ByVal 0, _
D3DX_DEFAULT, _
0, _
ByVal 0
If surf Is Nothing Then
MsgBox "Error loading " & filename & "!"
Exit Function
End If
'return the new surface
Set LoadSurface = surf
fatal_error:
Exit Function
End Function
The first error im getting is in bold if i can fix this i will post the rest but its in bold above and says Compile Error only user-difine types define in public object modules can be coerced to or from a variant or passed to late-bound funtions And it is hilighted not red but hilighted.
Thanks
Oh ya and since i dont know any basic VB commands where can i learn them I have a book Visual Basic 6 Crash course but the code in it simply doesnt work. I dont want to halve to spend a month learnign basic commands cause i was iching to get into this other book i have and its so far not a real problem but i cant like read the code or understand all of it. I get some,,,, a little some of it and the book explains it well but it goes over my head does that matter or will i learn as i make the rpg the book teaches how to make???? how long did it take you guys to be able to like read code???