Color under cursor ???

[dARKO]

How can I know who color is under cursor (mouse) ???


Thanx !

[NOMADMAN]

Declare Function GetPixel Lib "gdi32" Alias "GetPixel" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long

Simple as that... Just add this API to your project and call with the appropraite varibles to recieve your RGB in long form.

Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Label1.Caption = GetPixel(Form1.hdc, X / 15, Y / 15)
End Sub

The 15 is the twips per pixel on my form. Screen.TwipsPerPixelX (Y) ...

Hope that this helps

NOMAD

[NOMADMAN]

If you don't want to "bother" with API you can just use the point function for Picture box or Form... This will only work when you are over a form or picture box... I think, I haven't tested it just remember looking into it.

NOMAD

[Sastraxi]

To get it for the entirety of the screen, use this snippet that I've written.

Private Declare Function GetCursorPos Lib "user32" Alias "GetCursorPos" (lpPoint As POINTAPI) As Long
Private Declare Function GetDC Lib "user32" Alias "GetDC" (ByVal hwnd As Long) As Long
Private Declare Function GetDesktopWindow Lib "user32" Alias "GetDesktopWindow" () As Long
Private Declare Function GetPixel Lib "gdi32" Alias "GetPixel" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long
Private Type POINTAPI
        x As Long
        y As Long
End Type
 
Function ColourUnderCursor() As Long
Dim lPoint As POINTAPI
    GetCursorPos lPoint
    ColourUnderCursor = GetPixel(GetDc(GetDesktopWindow), lPoint.x, lPoint.y)
End Function

It requires the declaration of GetCursorPos, GetDesktopWindow, GetDc, and GetPixel. It also requires the PointAPI Type, all of which are included above the function.

[dARKO]

OK thanx fo this !! but i have a prblem !
I have 2 Picture box ( Picture1 and Picture 2) ..I need when i move mouse in Picture1 ...then Picture2.BackColor = ColourUnderCursor !!!!


How can I do this .... Thanx

[Sastraxi]

Make a timer control and set it's refresh to, say, 50ms (the Interval property). In the timer subroutine, add this code:

Picture2.BackColor = ColourUnderCursor

It's as simple as that!