[es] - problem sa iscrtavanjem slova u formi

crnjak1
Radivoj Crnjak
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problem sa iscrtavanjem slova u formi

^{18.11.2012. u 01:14 - pre 146 meseci}

Kao sto naslov kaze problem je sledeci kada npr se klikne na button1 on ispise na nekim koordinatama forme recimo slovo A to je ok ali kada hocu da kliknem na button2 i da ispise slovo B na tim istim koordinatama on uradi ali ostane slovo A ispod.
Nemam ideju a plus sam totalni pocetnik pa stoga POMOC!!!!!
evo i primer koda:

Code (vbnet):

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        My.Computer.Audio.Play(My.Resources.zvono, AudioPlayMode.Background)

        'Initiate graphics. Command below draws text on the main form 'Me'. If you want to draw on top of a panel, groupbox etc: use groupbox1.CreateGraphics()

        Dim g As Graphics = Me.CreateGraphics()

        'Call sub. Specify x and y coordinates (in this case 10 and 50) and the text to draw 

        markInvalid(New System.Windows.Forms.PaintEventArgs(g, New Rectangle(0, 0, Me.Width, Me.Height)), 1450, 550, "A")

    End Sub

    'This sub does the actual drawing

    Private Sub markInvalid(ByVal e As System.Windows.Forms.PaintEventArgs, ByVal xco As Single, ByVal yco As Single, ByVal drawString As String)

        'Specify text parameters, like font, size, color and location

        Dim drawFont As New Font("Comic Sans MS", 300)

        Dim drawBrush As New SolidBrush(Color.White)

        Dim drawPoint As New PointF(xco, yco)

        'Execute DrawString

        e.Graphics.DrawString(drawString, drawFont, drawBrush, drawPoint)

    End Sub

 Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

        My.Computer.Audio.Play(My.Resources.zvono, AudioPlayMode.Background)

        Dim g As Graphics = Me.CreateGraphics()

        markInvalid(New System.Windows.Forms.PaintEventArgs(g, New Rectangle(0, 0, Me.Width, Me.Height)), 1450, 550, "B")

    End Sub

_{[Ovu poruku je menjao Shadowed dana 18.11.2012. u 16:18 GMT+1]}

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crnjak1
Radivoj Crnjak
BP

Član broj: 113662
Poruke: 91
*.dynamic.isp.telekom.rs.

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Re: problem sa iscrtavanjem slova u formi

^{18.11.2012. u 09:33 - pre 146 meseci}

uradio sam sa refresh() ispred svakog klika radi ali blica ekran dok vrsi refresh
jel zna neko kako da uradim refresh samo tog dela???

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mish_ns
Miloš Krstin

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Re: problem sa iscrtavanjem slova u formi

^{18.11.2012. u 10:38 - pre 146 meseci}

Uradi refresh() u markinvalid() proceduri i to odmah na početku.
Pozdrav,
Miloš

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crnjak1
Radivoj Crnjak
BP

Član broj: 113662
Poruke: 91
*.dynamic.isp.telekom.rs.

+2 Profil

Re: problem sa iscrtavanjem slova u formi

^{18.11.2012. u 10:46 - pre 146 meseci}

tako sam i uradio jedino mi nije jasno zasto vlica ekran na svaku izmenu jel postoji neka optimizacija ako postavljam background image koju sam napravio u PS-u i snimljana je kao JPG?
inace je sve OK kada nema pozadinske slike jedino kada se stavi pozadina tada blica zasto?

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mish_ns
Miloš Krstin

Član broj: 159930
Poruke: 1105
212.178.224.*

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Re: problem sa iscrtavanjem slova u formi

^{18.11.2012. u 10:56 - pre 146 meseci}

Code:
'Call sub. Specify x and y coordinates (in this case 10 and 50) and the text to draw
markInvalid(New System.Windows.Forms.PaintEventArgs(g, New Rectangle(0, 0, Me.Width, Me.Height)), 1450, 550, "A")
End Sub
'This sub does the actual drawing
Private Sub markInvalid(ByVal e As System.Windows.Forms.PaintEventArgs, ByVal xco As Single, ByVal yco As Single, ByVal drawString As String)

'Specify text parameters, like font, size, color and location
Dim drawFont As New Font("Comic Sans MS", 300)
Dim drawBrush As New SolidBrush(Color.White)
Dim drawPoint As New PointF(xco, yco)

Refresh()

'Execute DrawString
e.Graphics.DrawString(drawString, drawFont, drawBrush, drawPoint)

End Sub

Ovako si uradio? Kod mene ne blica ni sa slikom ni bez.
okači ceo solution pa da vidimo...

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crnjak1
Radivoj Crnjak
BP

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*.dynamic.isp.telekom.rs.

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Re: problem sa iscrtavanjem slova u formi

^{18.11.2012. u 11:07 - pre 146 meseci}

'Call sub. Specify x and y coordinates (in this case 10 and 50) and the text to draw
markInvalid(New System.Windows.Forms.PaintEventArgs(g, New Rectangle(0, 0, Me.Width, Me.Height)), 1450, 550, "A")
End Sub
'This sub does the actual drawing
Private Sub markInvalid(ByVal e As System.Windows.Forms.PaintEventArgs, ByVal xco As Single, ByVal yco As Single, ByVal drawString As String)

'Specify text parameters, like font, size, color and location
Dim drawFont As New Font("Comic Sans MS", 300)
Dim drawBrush As New SolidBrush(Color.White)
Dim drawPoint As New PointF(xco, yco)

'Execute DrawString
Refresh()
e.Graphics.DrawString(drawString, drawFont, drawBrush, drawPoint)

End Sub

ovako ali to je isto, resio sam sve je sada OK
ovako u pitanju Fullscreen 1920x1080 (FullHD) aplikacija koja iscrtava na skolskoj tabli neka slova
da bi resio blicanje sacuvao sam pozadinsku sliku kao BMP u 24-bitnoj paleti i u propertisu od forme cekirao DoubleBuffer na "True" problem resen i ne da radi nego vrh :)
hvala na smernicama u svakom slucaju.

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crnjak1
Radivoj Crnjak
BP

Član broj: 113662
Poruke: 91
*.dynamic.isp.telekom.rs.

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Re: problem sa iscrtavanjem slova u formi

^{18.11.2012. u 11:45 - pre 146 meseci}

:) novo pitanje jel ima sanse da postavim custom kursor prilikom ucitavanja forme?
probao sam ovako ali bas nesto neradi:

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim cursor As String
cursor = "C:\kursor.cur"
Me.Cursor = New Cursor(cursor)
End Sub

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crnjak1
Radivoj Crnjak
BP

Član broj: 113662
Poruke: 91
*.dynamic.isp.telekom.rs.

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Re: problem sa iscrtavanjem slova u formi

^{19.11.2012. u 11:32 - pre 146 meseci}

resio sam problem na onaj nacin

Dim kursor As New Cursor(Me.Icon.Handle)
Me.Cursor = kursor

ako nekome bude trebalo
ucita se pointer u vidu ikonice i samo gore kod koji kaze da umesto pointera koristi ikonicu i radi :)

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crnjak1
Radivoj Crnjak
BP

Član broj: 113662
Poruke: 91
*.dynamic.isp.telekom.rs.

+2 Profil

Re: problem sa iscrtavanjem slova u formi

^{19.11.2012. u 19:54 - pre 146 meseci}

E sada dobio nove instrukcije pa kontam nesto ali mi ne pada nista na pamet
treba da se na klik misa moze crtati po formi slobodnom rukom kao u paintu jel ima ko ideju????

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