كيف اعرف مكان لون فى ........

ممكن أنك تقوم بأخذ صورة للشاشة ثم بعد ذلك تجعل البرنامج يبحث في هذه الصورة عن اللون

ويعيد لك إحداثيات هذا اللون

ولكن أظن أنه هناك مشكلة وهي إفرض وجود أكثر من لون ماذا ستفعل حينها إي الإحداثيات سوف تأخذها بالحسبان ....

عموماً كود أخذ صورة للشاشة هذا هو :

قم بوضع أداة Picture1 وزر Command1 وأداة مربع الحوار CommonDialog1

ثم انسخ الكود التالي إلى نافذة الكود لتحصل على برنامج يقوم بلقط صورة لسطح المكتب ومن ثم حفظها في ملف.

مثل زر Print Screen

Option Base 0

Private Type PALETTEENTRY
peRed As Byte
peGreen As Byte
peBlue As Byte
peFlags As Byte
End Type

Private Type LOGPALETTE
palVersion As Integer
palNumEntries As Integer
palPalEntry(255) As PALETTEENTRY
End Type

Private Type GUID
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(7) As Byte
End Type

Private Const RASTERCAPS As Long = 38
Private Const RC_PALETTE As Long = &H100
Private Const SIZEPALETTE As Long = 104

Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type

Private Declare Function CreateCompatibleDC Lib "GDI32" (ByVal hDC As Long) As Long
Private Declare Function CreateCompatibleBitmap Lib "GDI32" (ByVal hDC As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long
Private Declare Function GetDeviceCaps Lib "GDI32" (ByVal hDC As Long, ByVal iCapabilitiy As Long) As Long
Private Declare Function GetSystemPaletteEntries Lib "GDI32" (ByVal hDC As Long, ByVal wStartIndex As Long, ByVal wNumEntries As Long, lpPaletteEntries As PALETTEENTRY) As Long
Private Declare Function CreatePalette Lib "GDI32" (lpLogPalette As LOGPALETTE) As Long
Private Declare Function SelectObject Lib "GDI32" (ByVal hDC As Long, ByVal hObject As Long) As Long
Private Declare Function BitBlt Lib "GDI32" (ByVal hDCDest As Long, ByVal XDest As Long, ByVal YDest As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hDCSrc As Long, ByVal XSrc As Long, ByVal YSrc As Long, ByVal dwRop As Long) As Long
Private Declare Function DeleteDC Lib "GDI32" (ByVal hDC As Long) As Long
Private Declare Function GetForegroundWindow Lib "USER32" () As Long
Private Declare Function SelectPalette Lib "GDI32" (ByVal hDC As Long, ByVal hPalette As Long, ByVal bForceBackground As Long) As Long
Private Declare Function RealizePalette Lib "GDI32" (ByVal hDC As Long) As Long
Private Declare Function GetWindowDC Lib "USER32" (ByVal hWnd As Long) As Long
Private Declare Function GetDC Lib "USER32" (ByVal hWnd As Long) As Long
Private Declare Function GetWindowRect Lib "USER32" (ByVal hWnd As Long, lpRect As RECT) As Long
Private Declare Function ReleaseDC Lib "USER32" (ByVal hWnd As Long, ByVal hDC As Long) As Long
Private Declare Function GetDesktopWindow Lib "USER32" () As Long

Private Type PicBmp
Size As Long
Type As Long
hBmp As Long
hPal As Long
Reserved As Long
End Type

Private Declare Function OleCreatePictureIndirect Lib "olepro32.dll" (PicDesc As PicBmp, RefIID As GUID, ByVal fPictureOwnsHandle As Long, IPic As IPicture) As Long







Public Function CreateBitmapPicture(ByVal hBmp As Long, ByVal hPal As Long) As Picture
Dim r As Long

Dim Pic As PicBmp

Dim IPic As IPicture
Dim IID_IDispatch As GUID


With IID_IDispatch
.Data1 = &H20400
.Data4(0) = &HC0
.Data4(7) = &H46
End With


With Pic
.Size = Len(Pic)
.Type = vbPicTypeBitmap
.hBmp = hBmp
.hPal = hPal
End With


r = OleCreatePictureIndirect(Pic, IID_IDispatch, 1, IPic)


Set CreateBitmapPicture = IPic
End Function



Public Function CaptureWindow(ByVal hWndSrc As Long, ByVal Client As Boolean, ByVal LeftSrc As Long, ByVal TopSrc As Long, ByVal WidthSrc As Long, ByVal HeightSrc As Long) As Picture

Dim hDCMemory As Long
Dim hBmp As Long
Dim hBmpPrev As Long
Dim r As Long
Dim hDCSrc As Long
Dim hPal As Long
Dim hPalPrev As Long
Dim RasterCapsScrn As Long
Dim HasPaletteScrn As Long
Dim PaletteSizeScrn As Long
Dim LogPal As LOGPALETTE


If Client Then
hDCSrc = GetDC(hWndSrc)
Else
hDCSrc = GetWindowDC(hWndSrc)

End If


hDCMemory = CreateCompatibleDC(hDCSrc)

hBmp = CreateCompatibleBitmap(hDCSrc, WidthSrc, HeightSrc)
hBmpPrev = SelectObject(hDCMemory, hBmp)


RasterCapsScrn = GetDeviceCaps(hDCSrc, RASTERCAPS)

HasPaletteScrn = RasterCapsScrn And RC_PALETTE

PaletteSizeScrn = GetDeviceCaps(hDCSrc, SIZEPALETTE)



If HasPaletteScrn And (PaletteSizeScrn = 256) Then

LogPal.palVersion = &H300
LogPal.palNumEntries = 256
r = GetSystemPaletteEntries(hDCSrc, 0, 256, LogPal.palPalEntry(0))
hPal = CreatePalette(LogPal)

hPalPrev = SelectPalette(hDCMemory, hPal, 0)
r = RealizePalette(hDCMemory)
End If


r = BitBlt(hDCMemory, 0, 0, WidthSrc, HeightSrc, hDCSrc, LeftSrc, TopSrc, vbSrcCopy)


hBmp = SelectObject(hDCMemory, hBmpPrev)


If HasPaletteScrn And (PaletteSizeScrn = 256) Then
hPal = SelectPalette(hDCMemory, hPalPrev, 0)
End If


r = DeleteDC(hDCMemory)
r = ReleaseDC(hWndSrc, hDCSrc)


Set CaptureWindow = CreateBitmapPicture(hBmp, hPal)
End Function



Public Function CaptureScreen() As Picture
Dim hWndScreen As Long


hWndScreen = GetDesktopWindow()

Set CaptureScreen = CaptureWindow(hWndScreen, False, 0, 0, Screen.Width \ Screen.TwipsPerPixelX, Screen.Height \ Screen.TwipsPerPixelY)
End Function

Public Function CaptureForm(frmSrc As Form) As Picture

Set CaptureForm = CaptureWindow(frmSrc.hWnd, False, 0, 0, frmSrc.ScaleX(frmSrc.Width, vbTwips, vbPixels), frmSrc.ScaleY(frmSrc.Height, vbTwips, vbPixels))
End Function

Public Function CaptureClient(frmSrc As Form) As Picture

Set CaptureClient = CaptureWindow(frmSrc.hWnd, True, 0, 0, frmSrc.ScaleX(frmSrc.ScaleWidth, frmSrc.ScaleMode, vbPixels), frmSrc.ScaleY(frmSrc.ScaleHeight, frmSrc.ScaleMode, vbPixels))
End Function
Public Function CaptureActiveWindow() As Picture

Dim hWndActive As Long
Dim r As Long

Dim RectActive As RECT


hWndActive = GetForegroundWindow()


r = GetWindowRect(hWndActive, RectActive)


Set CaptureActiveWindow = CaptureWindow(hWndActive, False, 0, 0, RectActive.Right - RectActive.Left, RectActive.Bottom - RectActive.Top)
End Function

Public Sub PrintPictureToFitPage(Prn As Printer, Pic As Picture)

Const vbHiMetric As Integer = 8
Dim PicRatio As Double
Dim PrnWidth As Double
Dim PrnHeight As Double
Dim PrnRatio As Double
Dim PrnPicWidth As Double
Dim PrnPicHeight As Double


If Pic.Height >= Pic.Width Then
Prn.Orientation = vbPRORPortrait
Else
Prn.Orientation = vbPRORLandscape
End If


PicRatio = Pic.Width / Pic.Height


PrnWidth = Prn.ScaleX(Prn.ScaleWidth, Prn.ScaleMode, vbHiMetric)
PrnHeight = Prn.ScaleY(Prn.ScaleHeight, Prn.ScaleMode, vbHiMetric)

PrnRatio = PrnWidth / PrnHeight


If PicRatio >= PrnRatio Then

PrnPicWidth = Prn.ScaleX(PrnWidth, vbHiMetric, Prn.ScaleMode)
PrnPicHeight = Prn.ScaleY(PrnWidth / PicRatio, vbHiMetric, Prn.ScaleMode)
Else

PrnPicHeight = Prn.ScaleY(PrnHeight, vbHiMetric, Prn.ScaleMode)
PrnPicWidth = Prn.ScaleX(PrnHeight * PicRatio, vbHiMetric, Prn.ScaleMode)
End If


Prn.PaintPicture Pic, 0, 0, PrnPicWidth, PrnPicHeight
End Sub
'-------------------------------------------------------------------


Private Sub Command1_Click()

CommonDialog1.DefaultExt = ".BMP"
CommonDialog1.Filter = "Bitmap Image (*.bmp)|*.bmp"
CommonDialog1.ShowSave
If CommonDialog1.FileName <> "" Then
SavePicture Picture1.Picture, CommonDialog1.FileName
End If

End Sub


Private Sub Form_Load()
Set Picture1.Picture = CaptureScreen()
Form1.WindowState = 1
End Sub

بعد أن تحفظ الصورة ابحث عن اللون فيها وفقط ....

ممشكور اخى على اهتمامك ....

لكن المشكله عندى هى كود البحث عن البكسل الدى يحتوى على اللون المطلوب وانا اعرف رقم اللون واريد فقط ان يقوم البرنامج بالبحث فى الصوره ثم يعطينى اماكن البكسلات التى تحتنوى على اللون باحداثيات x y ......

lمشكور اخى على الاهتمام .....