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Guia 4 de ejercicios
Profesor : Manuel Diaz
Ayudante : Pedro Silva
Bajar Codigo Fuente de la guia
1) Implementar un programa que dibuje un circulo, cuadrado o rectangulo.
La forma se deberá escojer de un ListBox y las opciones serán determinadas en tiempo de diseño
El color (verde, amarillo, rojo ) se debera seleccionar desde tres OptionButton
SOLUCION
Begin VB.Form Form1
Caption = "Formulario de Dibujo"
ClientHeight = 2940
ClientLeft = 60
ClientTop = 450
ClientWidth = 7740
LinkTopic = "Form1"
ScaleHeight = 2940
ScaleWidth = 7740
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton cmdDibujar
Caption = "Dibujar"
Height = 495
Left = 1800
TabIndex = 5
Top = 1920
Width = 1575
End
Begin VB.OptionButton optRojo
Caption = "Rojo"
Height = 255
Left = 360
TabIndex = 4
Top = 2400
Width = 975
End
Begin VB.OptionButton optAmarillo
Caption = "Amarillo"
Height = 255
Left = 360
TabIndex = 3
Top = 2040
Width = 975
End
Begin VB.OptionButton optVerde
Caption = "Verde"
Height = 255
Left = 360
TabIndex = 2
Top = 1680
Value = -1 'True
Width = 975
End
Begin VB.ListBox ListForma
Height = 645
ItemData = "frmDibujo.frx":0000
Left = 360
List = "Cuadrado","Rectangulo","Circulo"
TabIndex = 1
Top = 720
Width = 1815
End
Begin VB.Label lblDibujo
Caption = "DIBUJO"
BeginProperty Font
Name = "MS Sans Serif"
Size = 13.5
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 5160
TabIndex = 0
Top = 240
Width = 1215
End
Begin VB.Shape ShapeDibujo
FillStyle = 0 'Solid
Height = 1215
Left = 4680
Top = 1080
Width = 1935
End
End
Private Sub cmdDibujar_Click()
If Me.ListForma.ListIndex = -1 Then
MsgBox "No hay forma seleccionada"
Else
Select Case Me.ListForma.ListIndex
Case 0
Me.ShapeDibujo.Shape = vbShapeSquare
Case 1
Me.ShapeDibujo.Shape = vbShapeRectangle
Case 2
Me.ShapeDibujo.Shape = vbShapeCircle
End Select
If Me.optVerde.Value = True Then
Me.ShapeDibujo.FillColor = vbGreen
End If
If Me.optAmarillo.Value = True Then
Me.ShapeDibujo.FillColor = vbYellow
End If
If Me.optRojo.Value = True Then
Me.ShapeDibujo.FillColor = vbRed
End If
End If
End Sub
2) Implementar un formulario, que asigne aleatoriamente números aleatorios [ 0..1] cada cierto intervalo de tiempo (modificable), a dos TextBox.
También, se tiene que incluir un textbox que muestre la multiplicación de los dos factores.
Si cualquiera de los factores, es mayor o igual a 0.5, debe ser mostrado con color verde. En caso contrario, con color Rojo.
Finalmente, debe incluir un ScrollBar y un Timer para sincronizar, el intervalo de tiempo requerido para generar una nueva combinación de números aleatorios.
Begin VB.Form Form1
Caption = "Formulario de activacion aleatoria"
ClientHeight = 2865
ClientLeft = 60
ClientTop = 450
ClientWidth = 10260
LinkTopic = "Form1"
ScaleHeight = 2865
ScaleWidth = 10260
StartUpPosition = 3 'Windows Default
Begin VB.HScrollBar HScroll1
Height = 255
LargeChange = 10
Left = 960
Max = 1000
Min = 50
SmallChange = 10
TabIndex = 8
Top = 2040
Value = 500
Width = 2295
End
Begin VB.CommandButton cmdContinuar
Caption = "Continuar"
Enabled = 0 'False
Height = 495
Left = 7800
TabIndex = 4
Top = 1920
Width = 1575
End
Begin VB.CommandButton cmdDetener
Caption = "Detener"
Height = 495
Left = 5760
TabIndex = 3
Top = 1920
Width = 1695
End
Begin VB.Timer Timer1
Interval = 450
Left = 4200
Top = 1440
End
Begin VB.Label Label4
Caption = "Intervalo de tiempo en ms"
Height = 255
Left = 1080
TabIndex = 10
Top = 1800
Width = 2295
End
Begin VB.Label lblintervalo
Caption = "Intervalo de tiempo"
Height = 255
Left = 3480
TabIndex = 9
Top = 2040
Width = 1215
End
Begin VB.Label Label3
Caption = "X * Y"
Height = 255
Left = 5880
TabIndex = 7
Top = 240
Width = 1935
End
Begin VB.Label Label2
Caption = "Y"
Height = 255
Left = 360
TabIndex = 6
Top = 1080
Width = 255
End
Begin VB.Label Label1
Caption = "X"
Height = 255
Left = 360
TabIndex = 5
Top = 480
Width = 255
End
Begin VB.Label LabelZ
BackColor = &H00000000&
BorderStyle = 1 'Fixed Single
Caption = "Z"
BeginProperty Font
Name = "MS Sans Serif"
Size = 12
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 615
Left = 5760
TabIndex = 2
Top = 600
Width = 4095
End
Begin VB.Line Line2
X1 = 3240
X2 = 5640
Y1 = 600
Y2 = 720
End
Begin VB.Line Line1
X1 = 3240
X2 = 5640
Y1 = 1200
Y2 = 960
End
Begin VB.Label LabelY
BackColor = &H00404040&
BorderStyle = 1 'Fixed Single
Caption = "Y"
BeginProperty Font
Name = "MS Sans Serif"
Size = 12
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Left = 840
TabIndex = 1
Top = 960
Width = 2295
End
Begin VB.Label LabelX
BackColor = &H00404040&
BorderStyle = 1 'Fixed Single
Caption = "X"
BeginProperty Font
Name = "MS Sans Serif"
Size = 12
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Left = 840
TabIndex = 0
Top = 360
Width = 2295
End
End
Dim x As Double, y As Double, z As Double
Private Sub cmdContinuar_Click()
Timer1.Enabled = True
Me.cmdDetener.Enabled = True
Me.cmdContinuar.Enabled = False
End Sub
Private Sub cmdDetener_Click()
Timer1.Enabled = False
Me.cmdContinuar.Enabled = True
Me.cmdDetener.Enabled = False
End Sub
Private Sub Form_Load()
Randomize
Me.lblintervalo.Caption = Me.HScroll1.Value
Me.Timer1.Interval = Me.HScroll1.Value
End Sub
Private Sub HScroll1_Change()
Me.Timer1.Interval = Me.HScroll1.Value
Me.lblintervalo = Me.HScroll1.Value
End Sub
Private Sub Timer1_Timer()
x = Round(Rnd, 5)
y = Round(Rnd, 5)
z = Round(x * y, 5)
Me.LabelX = Format(x, "#0.#####")
Me.LabelY = Format(y, "#0.#####")
If CDbl(LabelX.Caption) < 0.5 Then
Me.LabelX.ForeColor = vbRed
Else
Me.LabelX.ForeColor = vbGreen
End If
If CDbl(LabelY.Caption) < 0.5 Then
Me.LabelY.ForeColor = vbRed
Else
Me.LabelY.ForeColor = vbGreen
End If
If z < 0.5 Then
Me.LabelZ.ForeColor = vbRed
Else
Me.LabelZ.ForeColor = vbGreen
End If
If z < 0.5 Then
Me.LabelZ.Caption = "DESACTIVADO : "
Else
Me.LabelZ.Caption = "ACTIVADO : "
End If
Me.LabelZ.Caption = Me.LabelZ.Caption & Format(z, "#0.#####")
End Sub
3) Implementar un tabla de 3 x 3 entradas numericas con el control MSFlexgrid, en donde se asigne aleatoriamente números enteros en un intervalo de [-10,10], para
calcular las sumas por fila y por columna.
Cada asignación aleatoria por fila, será activada por un Reloj, usando el control Timer.
Si la suma por fila y columna es igual, se activará un circulo de color verde
Si la suma es diferente, se activará un circulo de color rojo, y además se desactivarán los relojes
También se debe implementar un botón de comando, para hacer pausa en los relojes
Object = "{5E9E78A0-531B-11CF-91F6-C2863C385E30}#1.0#0"; "MSFLXGRD.OCX"
Begin VB.Form Form1
Caption = "Form1"
ClientHeight = 3285
ClientLeft = 60
ClientTop = 345
ClientWidth = 7905
LinkTopic = "Form1"
ScaleHeight = 3285
ScaleWidth = 7905
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton cmdDetener
Caption = "Pausa"
BeginProperty Font
Name = "MS Sans Serif"
Size = 12
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 615
Left = 2520
TabIndex = 1
Top = 2040
Width = 2175
End
Begin VB.Timer Reloj
Index = 2
Left = 360
Top = 1440
End
Begin VB.Timer Reloj
Index = 1
Left = 360
Top = 960
End
Begin VB.Timer Reloj
Index = 0
Left = 360
Top = 480
End
Begin MSFlexGridLib.MSFlexGrid MSFlexGrid1
Height = 1455
Left = 1080
TabIndex = 0
Top = 360
Width = 5055
_ExtentX = 8916
_ExtentY = 2566
_Version = 393216
Rows = 5
Cols = 5
AllowUserResizing = 1
FormatString = ""
End
Begin VB.Shape Figura
FillColor = &H000000FF&
FillStyle = 0 'Solid
Height = 975
Left = 6480
Shape = 3 'Circle
Top = 480
Width = 1095
End
End
Private Sub Form_Load()
Dim i As Integer, j As Integer
With Me.MSFlexGrid1
.TextMatrix(0, 1) = "col 1"
.TextMatrix(0, 2) = "col 2"
.TextMatrix(0, 3) = "col 3"
.TextMatrix(0, 4) = "TOTAL"
.TextMatrix(1, 0) = "fil 1"
.TextMatrix(2, 0) = "fil 2"
.TextMatrix(3, 0) = "fil 3"
.TextMatrix(4, 0) = "TOTAL"
For i = 1 To 3
For j = 1 To 3
.TextMatrix(i, j) = "0"
Next j
Next i
End With
' un reloj por cada fila
Reloj(0).Interval = 50
Reloj(1).Interval = 150
Reloj(2).Interval = 500
End Sub
Private Function generarNumAleatorio(ByVal limInf As Integer, ByVal limSup As Integer) As Integer
Dim generado As Boolean, num As Integer
Dim cont As Integer
cont = 0
generado = False
Randomize
Do While Not generado
num = limInf + Rnd * Abs(limSup * 2 - limInf)
If (num >= limInf And num <= limSup) Then
generado = True
End If
cont = cont + 1
If cont > 100 Then ' en caso que despues de 100 iteraciones no
num = limInf ' se haya generado un numero en el tramo
generado = True
End If
Loop
generarNumAleatorio = num
End Function
Private Sub cmdDetener_Click()
Call DetenerRelojes
End Sub
Private Sub Reloj_Timer(Index As Integer)
Dim num As Integer
Dim columna As Integer
Dim sum As Integer
columna = generarNumAleatorio(1, 3)
num = generarNumAleatorio(-10, 10)
Me.MSFlexGrid1.TextMatrix(Index + 1, columna) = Str(num)
sum = calcularSumas
If (sum <> -1) Then
Me.Figura.FillColor = vbGreen
Me.MSFlexGrid1.TextMatrix(4, 4) = Str(sum)
Else
Call DetenerRelojes
Me.Figura.FillColor = vbRed
Me.MSFlexGrid1.TextMatrix(4, 4) = "SUM DIF"
End If
End Sub
Private Function calcularSumas() As Integer
Dim sumFila(1 To 3) As Integer
Dim sumCol(1 To 3) As Integer
Dim i As Integer, j As Integer
Dim sc As Integer, sf As Integer
For i = 1 To 3
sumFila(i) = 0
For j = 1 To 3
sumFila(i) = sumFila(i) + CInt(Me.MSFlexGrid1.TextMatrix(i, j))
Next j
Next i
For j = 1 To 3
sumCol(j) = 0
For i = 1 To 3
sumCol(j) = sumCol(j) + CInt(Me.MSFlexGrid1.TextMatrix(i, j))
Next i
Next j
For i = 1 To 3
Me.MSFlexGrid1.TextMatrix(4, i) = Str(sumCol(i))
sf = sf + sumFila(i)
Me.MSFlexGrid1.TextMatrix(i, 4) = Str(sumFila(i))
sc = sc + sumCol(i)
Next i
If sc <> sf Then
calcularSumas = -1
Else
calcularSumas = sf
End If
End Function
Private Sub DetenerRelojes()
Dim i As Integer
For i = 0 To 2
Me.Reloj(i).Enabled = Not Me.Reloj(i).Enabled
Next i
End Sub
4) Implementar un programa que permita asociar en una tabla, Continentes, paises y capitales. usando MSFlexGrid y ComboBox.
Los elementos del ComboBox, deben ser cargados desde los archivos de texto Continentes.txt y PaisCapital.txt.
Object = "{5E9E78A0-531B-11CF-91F6-C2863C385E30}#1.0#0"; "MSFLXGRD.OCX"
Begin VB.Form Form1
Caption = "Formulario de asociacion "
ClientHeight = 4410
ClientLeft = 60
ClientTop = 345
ClientWidth = 8295
LinkTopic = "Form1"
ScaleHeight = 4410
ScaleWidth = 8295
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton cmdAsociar
Caption = "Asociar"
BeginProperty Font
Name = "MS Sans Serif"
Size = 12
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 495
Left = 720
TabIndex = 4
Top = 3480
Width = 2415
End
Begin MSFlexGridLib.MSFlexGrid MSFlexGrid1
Height = 3255
Left = 3840
TabIndex = 3
Top = 360
Width = 4095
_ExtentX = 7223
_ExtentY = 5741
_Version = 393216
Rows = 10
Cols = 4
MergeCells = 1
AllowUserResizing= 1
FormatString = ""
End
Begin VB.ComboBox Continente
Height = 315
Left = 720
Sorted = -1 'True
Style = 2 'Dropdown List
TabIndex = 2
Top = 600
Width = 2775
End
Begin VB.ComboBox Capital
Height = 315
Left = 720
Sorted = -1 'True
Style = 2 'Dropdown List
TabIndex = 1
Top = 2640
Width = 2775
End
Begin VB.ComboBox Pais
Height = 315
Left = 720
Sorted = -1 'True
Style = 2 'Dropdown List
TabIndex = 0
Top = 1680
Width = 2775
End
Begin VB.Label lblEntidad
Caption = "Capital"
Height = 255
Index = 2
Left = 720
TabIndex = 7
Top = 2400
Width = 2295
End
Begin VB.Label lblEntidad
Caption = "Pais"
Height = 255
Index = 1
Left = 720
TabIndex = 6
Top = 1440
Width = 2295
End
Begin VB.Label lblEntidad
Caption = "Continente"
Height = 255
Index = 0
Left = 720
TabIndex = 5
Top = 360
Width = 2295
End
End
Private Sub cmdAsociar_Click()
With Me.MSFlexGrid1
.TextMatrix(.Row, 1) = Continente.Text
.TextMatrix(.Row, 2) = Pais.Text
.TextMatrix(.Row, 3) = Capital.Text
If .Rows > .Row + 1 Then
.Row = .Row + 1
Else
MsgBox "Ahora solo se pueden realizar asociaciones sobre una fila existente" & _
vbCrLf & "Para ello seleccione la fila con el mouse"
End If
End With
End Sub
Private Sub Form_Load()
Call CargarContinentes
Call cargarPaisCapital
Me.MSFlexGrid1.TextMatrix(0, 1) = "Continente"
Me.MSFlexGrid1.TextMatrix(0, 2) = "Pais"
Me.MSFlexGrid1.TextMatrix(0, 3) = "Capital"
End Sub
Private Sub CargarContinentes()
Dim elemento As String
On Error GoTo Manejador_Error
Open "Continentes.txt" For Input As #1
Do Until EOF(1)
Line Input #1, elemento
Continente.AddItem elemento
Loop
Close #1
Continente.ListIndex = 0
Exit Sub
Manejador_Error:
MsgBox "No se pudo cargar los datos a la lista continente"
End Sub
Private Sub cargarPaisCapital()
Dim elemento As String
On Error GoTo Manejador_Error
Open "PaisCapital.txt" For Input As #1
Do Until EOF(1)
Line Input #1, elemento
Pais.AddItem elemento
Line Input #1, elemento
Capital.AddItem elemento
Loop
Close #1
Pais.ListIndex = 0
Capital.ListIndex = 0
Exit Sub
Manejador_Error:
MsgBox "No se pudo cargar los datos a la lista continente"
End Sub
