Cetak Ke Printer Via LPT Port Menggunakan VB6

Di bawah ini merupakan contoh cara mencetak ke printer via LPT Port menggunakan Visual Basic 6 - Adapun kodenya adalah sebagai berikut:

Public Function PrintToLPTPort(ByVal port As String, ByVal text As String) As Boolean 
On Error GoTo ErrHandler 
     Dim l As Long 
     l = FreeFile
     Open port For Output As #l
         Print #F, text 
     Close #l 
     PrintToLPTPort = True 
    Exit Function 
ErrHandler: 
     PrintToLPTPort = False 
End Function 

Contoh penggunaan cetak ke printer via LPT Port:

Private Sub Command1_Click() 
    PrintToLPTPort "LPT1", "Test Print" 
End Sub 

READ MORE - Cetak Ke Printer Via LPT Port Menggunakan VB6

Web Color Spy - Mendeteksi Warna Standar Web

Di bawah ini merupakan project VB6 sederhana untuk mendeteksi warna standar web. Bagaimana kode project web color spy untuk mendeteksi warna standar web, bisa lihat di bawah ini:

'simpan kode di bawah pada module 
Option Explicit 
 
Public Declare Function CreateDC& Lib "gdi32" Alias "CreateDCA" (ByVal lpDriverName As String, ByVal lpDeviceName As String, ByVal lpOutput As String, lpInitData As Any) 
Public Declare Function DeleteDC& Lib "gdi32" (ByVal hdc As Long) 
Public Declare Function GetPixel Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal Y As Long) As Long 
 
Type POINTAPI 
    X As Long 
    Y As Long
End Type 
 
Public Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long 

'simpan kode di bawah pada form 
'Timer.Interval = 1 
'Picture1.AutoRedraw = True 
 
Option Explicit 
 
Dim pt As POINTAPI

Private Sub Picture1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) 
    Timer1.Enabled = True 
    Picture1.MousePointer = vbCrosshair
End Sub 
 
Private Sub Picture1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) 
    Timer1.Enabled = False 
    Picture1.MousePointer = vbDefault
End Sub 
 
Private Sub Timer1_Timer() 
    Dim screendc As Long 
    GetCursorPos pt
    screendc = CreateDC("DISPLAY", "", "", 0&)
    Picture1.BackColor = GetPixel(screendc, pt.X, pt.Y) 
    Text1.Text = "#" & Hex(GetPixel(screendc, pt.X, pt.Y)) 
    DeleteDC (screendc) 
End Sub 

READ MORE - Web Color Spy - Mendeteksi Warna Standar Web