regions

**Pirate** · Oct 19th, 2002, 06:27 PM

HI guys

how can I manipulate this :
1-When I click the yellow cube the yellow window comes out ,and clicking the red cube makes the red window do the same .

2-after ,for example, the red window come out & clicking the button that makes the red cube white one!
(plz download the attch.)

I think it's clear now .

thanx in advance
Pirate

**MrPolite** · Oct 19th, 2002, 06:45 PM

no it's not clear

are those supposed to be buttons?
what's the problem? drawing them as regions? or just doing what you said?

**Pirate** · Oct 19th, 2002, 07:18 PM

nope . let's say it's imported image and i want to change the color of any cube .Anyway , it's something has to do with mouse position (I got this function but the rest is so hard to).

Pirate : clear ?

MrPolite : yes clear Pirate
Pirate :

**Edneeis** · Oct 19th, 2002, 07:30 PM

What? You want to dynamically change an imported image? And know what certain boundaries are like the cubes?

**Pirate** · Oct 19th, 2002, 07:50 PM

Briefly , I want to change the color of the yellow cube to white one. Can I ?

**Pirate** · Oct 19th, 2002, 07:56 PM

I pretend I know the boundaries of the Yellow cube!

**MrPolite** · Oct 19th, 2002, 08:13 PM

hmm you could use the floodFill API, but I cant find a way to do this in .NET

should be a very easy way

**Pirate** · Oct 19th, 2002, 08:40 PM

I didn't find such API .What about this function :

Code:

Declare Function FillRgn Lib "gdi32" Alias "FillRgn" (ByVal hdc As Long, ByVal hRgn As Long, ByVal hBrush As Long) As Long

I'll give it a shot now .

**MrPolite** · Oct 19th, 2002, 08:58 PM

Here's a VB6 example, see if it helps (probably not

)

Declare Function FloodFill Lib "gdi32" Alias "FloodFill" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal crColor As Long) As Long

VB Code:

Const PS_DOT = 2
Const PS_SOLID = 0
Const RGN_AND = 1
Const RGN_COPY = 5
Const RGN_OR = 2
Const RGN_XOR = 3
Const RGN_DIFF = 4
Const HS_DIAGCROSS = 5
Private Type POINTAPI
    x As Long
    y As Long
End Type
Private Type RECT
    Left As Long
    Top As Long
    Right As Long
    Bottom As Long
End Type
Private Type LOGPEN
    lopnStyle As Long
    lopnWidth As POINTAPI
    lopnColor As Long
End Type
Private Declare Function CreateHatchBrush Lib "gdi32" (ByVal nIndex As Long, ByVal crColor As Long) As Long
Private Declare Function CreatePen Lib "gdi32" (ByVal nPenStyle As Long, ByVal nWidth As Long, ByVal crColor As Long) As Long
Private Declare Function CreatePenIndirect Lib "gdi32" (lpLogPen As LOGPEN) As Long
Private Declare Function CreateRectRgnIndirect Lib "gdi32" (lpRect As RECT) As Long
Private Declare Function CreateRoundRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function ExtractIconEx Lib "shell32.dll" Alias "ExtractIconExA" (ByVal lpszFile As String, ByVal nIconIndex As Long, phiconLarge As Long, phiconSmall As Long, ByVal nIcons As Long) As Long
Private Declare Function FloodFill Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal crColor As Long) As Long
Private Declare Function FrameRect Lib "user32" (ByVal hdc As Long, lpRect As RECT, ByVal hBrush As Long) As Long
Private Declare Function FrameRgn Lib "gdi32" (ByVal hdc As Long, ByVal hRgn As Long, ByVal hBrush As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long
Private Declare Function InvertRgn Lib "gdi32" (ByVal hdc As Long, ByVal hRgn As Long) As Long
Private Declare Function OffsetRgn Lib "gdi32" (ByVal hRgn As Long, ByVal x As Long, ByVal y As Long) As Long
Private Declare Function Pie Lib "gdi32" (ByVal hdc As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long, ByVal X4 As Long, ByVal Y4 As Long) As Long
Private Declare Function Rectangle Lib "gdi32" (ByVal hdc As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function RoundRect Lib "gdi32" (ByVal hdc As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
Private Declare Function SetRect Lib "user32" (lpRect As RECT, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Function CreateSolidBrush Lib "gdi32" (ByVal crColor As Long) As Long
Private Declare Function DrawIcon Lib "user32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal hIcon As Long) As Long
Private Declare Function DestroyIcon Lib "user32" (ByVal hIcon As Long) As Long
Private Sub Form_Load()
    'KPD-Team 1998
    'URL: [url]http://www.allapi.net/[/url]
    'E-Mail: [email][email protected][/email]
    Me.ScaleMode = vbPixels
End Sub
Private Sub Form_Paint()
    Dim hHBr As Long, R As RECT, hFRgn As Long, hRRgn As Long, hRPen As Long, LP As LOGPEN
    Dim hFFBrush As Long, mIcon As Long, Cnt As Long
    'Clear the form
    Me.Cls
    'Set the rectangle's values
    SetRect R, 0, 0, Me.ScaleWidth, Me.ScaleHeight
    'Create a new brush
    hHBr = CreateHatchBrush(HS_DIAGCROSS, vbRed)
    'Draw a frame
    FrameRect Me.hdc, R, hHBr
    'Draw a rounded rectangle
    hFRgn = CreateRoundRectRgn(0, 0, Me.ScaleWidth, Me.ScaleHeight, (Me.ScaleWidth / 3) * 2, (Me.ScaleHeight / 3) * 5)
    'Draw a frame
    FrameRgn Me.hdc, hFRgn, hHBr, Me.ScaleWidth, Me.ScaleHeight
    'Invert a region
    InvertRgn Me.hdc, hFRgn
    'Move our region
    OffsetRgn hFRgn, 10, 10
    'Create a new region
    hRRgn = CreateRectRgnIndirect(R)
    'Combine our two regions
    CombineRgn hRRgn, hFRgn, hRRgn, RGN_XOR
    'Draw a frame
    FrameRgn Me.hdc, hRRgn, hHBr, Me.ScaleWidth, Me.ScaleHeight
    'Crete a new pen
    hRPen = CreatePen(PS_SOLID, 5, vbBlue)
    'Select our pen into the form's device context and delete the old pen
    DeleteObject SelectObject(Me.hdc, hRPen)
    'Draw a rectangle
    Rectangle Me.hdc, Me.ScaleWidth / 2 - 25, Me.ScaleHeight / 2 - 25, Me.ScaleWidth / 2 + 25, Me.ScaleHeight / 2 + 25
    'Delete our pen
    DeleteObject hRPen
    LP.lopnStyle = PS_DOT
    LP.lopnColor = vbGreen
    'Create a new pen
    hRPen = CreatePenIndirect(LP)
    'Select our pen into the form's device context
    SelectObject Me.hdc, hRPen
    'Draw a rounded rectangle
    RoundRect Me.hdc, Me.ScaleWidth / 2 - 25, Me.ScaleHeight / 2 - 25, Me.ScaleWidth / 2 + 25, Me.ScaleHeight / 2 + 25, 50, 50
    'Create a new solid brush
    hFFBrush = CreateSolidBrush(vbYellow)
    'Select this brush into our form's device context
    SelectObject Me.hdc, hFFBrush
    'Floodfill our form
    FloodFill Me.hdc, Me.ScaleWidth / 2, Me.ScaleHeight / 2, vbBlue
    'Delete our brush
    DeleteObject hFFBrush
    'Create a new solid brush
    hFFBrush = CreateSolidBrush(vbMagenta)
    'Select our solid brush into our form's device context
    SelectObject Me.hdc, hFFBrush
    'Draw a Pie
    Pie Me.hdc, Me.ScaleWidth / 2 - 15, Me.ScaleHeight / 2 - 15, Me.ScaleWidth / 2 + 15, Me.ScaleHeight / 2 + 15, 20, 20, 20, 20
    'Extract icons from 'shell32.dll' and draw them on the form
    For Cnt = 0 To Me.ScaleWidth / 32
        ExtractIconEx "shell32.dll", Cnt, mIcon, ByVal 0&, 1
        DrawIcon Me.hdc, 32 * Cnt, 0, mIcon
        DestroyIcon mIcon
    Next Cnt
    'Clean up
    DeleteObject hFFBrush
    DeleteObject hRPen
    DeleteObject hRRgn
    DeleteObject hFRgn
    DeleteObject hHBr
End Sub
Private Sub Form_Resize()
    Form_Paint
End Sub

**Pirate** · Oct 19th, 2002, 09:21 PM

right now

**Pirate** · Oct 19th, 2002, 09:31 PM

thanx for your replay MrPolite.I am changing some values to get my wish .
another question :

how can i get the dimensions of any of these cubes (in attach file).?

thanx

**MrPolite** · Oct 19th, 2002, 09:38 PM

with my knowledge, you cant

dunno, should be had to get the demention, why do you want it anyways?

**Pirate** · Oct 19th, 2002, 09:42 PM

If get the dimensions of that cube , i would be Bill Gates lol.
Well , I guess this is the fist step for solving the prob.
thanx

**Pirate** · Oct 20th, 2002, 01:15 AM

Still Unresolved

. Any help

**Pirate** · Oct 20th, 2002, 12:15 PM

guys , code in vb6 also acceptable .

**MrPolite** · Oct 20th, 2002, 03:11 PM

again, I dont think you would be able to get the dementions of a colored area just by knowing the fact that it exists, at least no easily.

**Pirate** · Oct 20th, 2002, 03:27 PM

I believe VB.Net can do more than that !!

**MrPolite** · Oct 20th, 2002, 03:35 PM

It's a lie! It's a lie!

eeh, I'm not helping at all, I should stop posting

**Pirate** · Oct 20th, 2002, 04:36 PM

I swear it can be done .by vb.

Thread: regions

Thread Tools

Display

regions

Posting Permissions