by Mohammad Dindoost (1 Submission)
Category: Windows API Call/Explanation
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Fri 24th May 2002
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
This code calls setpixel & getpixel api functions.(just for beginners!)
API Declarations
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function GetWindowDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function SetPixel Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal crColor As Long) As Long
Private Declare Function GetPixel Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long
VBcoders
Private Sub Timer1_Timer()
Dim dc As Long
Dim screenarray(0 To 100, 0 To 100) As Long
dc = GetWindowDC(GetDesktopWindow())
Form1.WindowState = vbMinimized
Randomize
x = Rnd * 800
y = Rnd * 800
For i = 0 To 100
For j = 0 To 100
screenarray(i, j) = GetPixel(dc, x + i, y + j)
Next j
Next i
Randomize
X1 = Rnd * 800
Y1 = Rnd * 800
For i = 0 To 100
For j = 0 To 100
a = SetPixel(dc, X1 + i, Y1 + j, screenarray(i, j))
Next j
Next i
End Sub
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