19/04/2012, 20:24
bunu Access ile yapmak mümkün mü
aşağıda ki kod delphi için
bu olabilir mi acaba
bu ne işe yarıyor olabilir acab bu konu ile mi ilgili
aşağıda ki kod delphi için
Kod:
procedure TForm1.Button2Click(Sender: TObject);
var
point:TPoint; // kursor'un bulundugu yer
pikselrengi:TColor;
ScreenDC: HDC;
begin
getcursorpos(point); // kursor'un bulundugu yerin kordinatlarini oku
if (form1.Canvas.Pixels[point.x,point.y]=clBlack) then
begin
ShowMessage('siyah');
end else ShowMessage('değil');
end;
bu olabilir mi acaba
Kod:
Private Sub MainPage_MouseLeftButtonDown(ByVal sender As Object, ByVal e As System.Windows.Input.MouseButtonEventArgs) Handles Me.MouseLeftButtonDown
Dim wb = New WriteableBitmap(MyImage, Nothing)
Dim xa As Integer = e.GetPosition(MyImage).X
Dim ya As Integer = e.GetPosition(MyImage).Y
Label1.Content = wb.Pixels(ya * wb.PixelWidth + xa)
End Sub
Kod:
PixelGetColor, OutputVar, X, Y [, Alt|Slow|RGB]
bu ne işe yarıyor olabilir acab bu konu ile mi ilgili
Kod:
Option Compare Database
Declare Sub GetCursorPos Lib "user32" (lpPoint As typPOINTAPI)
Type typPOINTAPI
x As Long
Y As Long
End Type
Declare Function apiGetWindowRect Lib "user32" Alias "GetWindowRect" (ByVal hwnd As Long, lpRect As RECT_Type) As Long
Declare Function apiGetDC Lib "user32" Alias "GetDC" (ByVal hwnd As Long) As Long
Declare Function apiReleaseDC Lib "user32" Alias "ReleaseDC" (ByVal hwnd As Long, ByVal hdc As Long) As Long
Declare Function apiGetDeviceCaps Lib "gdi32" Alias "GetDeviceCaps" (ByVal hdc As Long, ByVal nIndex As Long) As Long
Declare Function apiGetActiveWindow Lib "user32" Alias "GetActiveWindow" () As Long
Declare Function apiGetParent Lib "user32" Alias "GetParent" (ByVal hwnd As Long) As Long
Declare Function apiGetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassname As String, ByVal nMaxCount As Long) As Long
Global Const TWIPSPERINCH = 1440
Sub ConvertPixelsToTwisps(l As Long, t As Long, x As Long, Y As Long)
On Error GoTo myErr
Dim hdc As Long, hwnd As Long, RetVal As Long, XPIXELSPERINCH, YPIXELSPERINCH
Const LOGPIXELSX = 88
Const LOGPIXELSY = 90
'get the current number of pixels per inch, which is
resolution -dependent:
hdc = apiGetDC(0)
XPIXELSPERINCH = apiGetDeviceCaps(hdc, LOGPIXELSX)
YPIXELSPERINCH = apiGetDeviceCaps(hdc, LOGPIXELSY)
RetVal = apiReleaseDC(0, hdc)
'compute and return the measurements in twips:
If l > 0 Then l = (l / XPIXELSPERINCH) * TWIPSPERINCH '>left
If t > 0 Then t = (t / XPIXELSPERINCH) * TWIPSPERINCH '>top
x = (x / XPIXELSPERINCH) * TWIPSPERINCH '>width
Y = (Y / YPIXELSPERINCH) * TWIPSPERINCH '>height
myExit:
Exit Sub
myErr:
MsgBox Err.Number & " " & Err.Description
Resume myExit
End Sub
'In the module opening your form paste the following:
Function OpenMyForm(myFrm As String)
'myFrm is the name of your form to open to your current mouse pointer location
Dim TipPoint As typPOINTAPI, myvar1 As Long, myvar2 As Long, myFrm As String, myStatusFile As String
'get the current mouse position:
GetCursorPos TipPoint
myvar1 = (TipPoint.x)
myvar2 = (TipPoint.Y)
Call ConvertPixelsToTwisps(myvar1, myvar2, 0, 0)
DoCmd.OpenForm myFrm
'>position the form
DoCmd.MoveSize myvar1, myvar2
End Function