Rotating text on picture, and maximum size of picture

[Peterson]

I changed a font on my picture object (and form) on which I was successfully rotating text, and now the text won't rotate. Are there only certain fonts that will rotate?

What the max size of a picture? I need to make one that's about 10 inches wide, and 100 inches tall.

-lp

[kedaman]

The max size of a picturebox is always the screen resolution.

maxx = ScaleX(Screen.Height, vbTwips, vbInches)
maxy = ScaleY(Screen.Width, vbTwips, vbInches)

Now with screen object they are specified with twips so you convert to inches with scaleX and scaley methods.

You can't rotate the text with the standard vb methods and objects, you would have to get an activeX control or something to do that

[Mad Compie]

Sure you can rotate fonts:

use the CreateFont API

This is some sample found on the net:

Use a Form with: AutoRedraw = True, BackColor = &H0&, ForeColor = &HFF& and ScaleMode = vbPixels


'Rotating Text Sample
'Author: Søren Christensen
'Date: 13-01-99

Option Explicit
'API's used in this sample
Private Declare Function CreateFont Lib "gdi32" Alias "CreateFontA" (ByVal H As Long, ByVal W As Long, ByVal E As Long, ByVal O As Long, ByVal W As Long, ByVal I As Long, ByVal U As Long, ByVal S As Long, ByVal C As Long, ByVal OP As Long, ByVal CP As Long, ByVal Q As Long, ByVal PAF As Long, ByVal F As String) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
Private Declare Function GetTickCount Lib "kernel32" () As Long

'Constant text to draw
Const TEXTOUTPUT As String = "www.vbexplorer.com"
Const PI As Single = 3.141593

'API constants
Const ANSI_CHARSET As Long = 0
Const FF_DONTCARE As Long = 0
Const CLIP_LH_ANGLES As Long = &H10
Const CLIP_DEFAULT_PRECIS As Long = 0
Const OUT_TT_ONLY_PRECIS As Long = 7
Const PROOF_QUALITY As Long = 2
Const TRUETYPE_FONTTYPE As Long = &H4
Const p_WIDTH As Long = 12
Const p_HEIGHT As Long = 12


'Center coordinates
Dim pXCenter As Long
Dim pYCenter As Long

'LookUp table with relative coordinates
Dim LookUp(1 To 2, 1 To 36) As Long
Dim pRadius As Long
'ending flag
Dim TimeToEnd As Boolean

'Main animation procedure
Private Sub RunMain()
Const FrameInterval As Long = 35
Dim LastFrameTime As Long
Dim Angle As Long

'Show the form
Me.Show

Angle = 1800
Do
'check to see if we have to end
If TimeToEnd Then Exit Do


If GetTickCount() - LastFrameTime > FrameInterval Then 'Time to update

'update angle
Angle = (Angle Mod 3600) - 100
'clear the form
Me.Cls

DrawRotatedText Angle

LastFrameTime = GetTickCount()

End If

DoEvents

Loop


End Sub
'Draws the rotated text
Private Sub DrawRotatedText(Angle As Long)
Dim NewFont As Long
Dim OldFont As Long
Static I As Long

'creat the font
NewFont = CreateFont(p_HEIGHT, p_WIDTH, Angle, 0, FF_DONTCARE, 0, 0, 0, ANSI_CHARSET, OUT_TT_ONLY_PRECIS, CLIP_LH_ANGLES Or CLIP_DEFAULT_PRECIS, PROOF_QUALITY, TRUETYPE_FONTTYPE, "Arial")

'set the new font
OldFont = SelectObject(Me.hdc, NewFont)

I = (I Mod 36) + 1

CurrentX = pXCenter + LookUp(1, I)
CurrentY = pYCenter + LookUp(2, I)

Print TEXTOUTPUT

'set the old font back
NewFont = SelectObject(Me.hdc, OldFont)

'Clean up
DeleteObject NewFont

End Sub

Private Sub Form_Load()

pRadius = ((Len(TEXTOUTPUT) * p_WIDTH) / 2)

BuildLookupTable
RunMain

End Sub

Private Sub Form_Resize()
'calculate center
pXCenter = Me.ScaleWidth / 2
pYCenter = Me.ScaleHeight / 2
End Sub

Private Sub Form_Unload(Cancel As Integer)
'flag the end
TimeToEnd = True
End Sub

'Builds the lookup table with the circle coordinates
Private Sub BuildLookupTable()
Dim I As Long
Dim Angle As Long
Const XIndex As Long = 1
Const YIndex As Long = 2

For I = LBound(LookUp, 2) To UBound(LookUp, 2)
LookUp(XIndex, I) = CLng(Cos((Angle * PI / 180)) * pRadius)
LookUp(YIndex, I) = CLng(Sin((Angle * PI / 180)) * pRadius)
Angle = (Angle Mod 360) + 10
Next I

End Sub