Graphics

[coolcat]

I have entered values into a Flexgrid - How can i draw a line between 2 points in the Flexgrid???

You need a little bit of API. Use the DrawPoint function as shown below.

Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function MoveToEx Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, lpPoint As POINTAPI) As Long
Private Declare Function LineTo Lib "gdi32" (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

Private Sub DrawPoint(fromX, fromY, toX, toY)
    Dim hDC_Grid As Long
    Dim PT As POINTAPI
    
    hDC_Grid = GetDC(MSFlexGrid1.hwnd)
    MoveToEx hDC_Grid, fromX, fromY, PT
    LineTo hDC_Grid, toX, toY
End Sub

Private Sub Command1_Click()
    'Draw a line from (5,5) to (100,100)
    DrawPoint 5, 5, 100, 100
End Sub

[coolcat]

Originally posted by Megatron
You need a little bit of API. Use the DrawPoint function as shown below.

Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function MoveToEx Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, lpPoint As POINTAPI) As Long
Private Declare Function LineTo Lib "gdi32" (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

Private Sub DrawPoint(fromX, fromY, toX, toY)
    Dim hDC_Grid As Long
    Dim PT As POINTAPI
    
    hDC_Grid = GetDC(MSFlexGrid1.hwnd)
    MoveToEx hDC_Grid, fromX, fromY, PT
    LineTo hDC_Grid, toX, toY
End Sub

Private Sub Command1_Click()
    'Draw a line from (5,5) to (100,100)
    DrawPoint 5, 5, 100, 100
End Sub

Thank you!!
Another Question!
Data is entered into the Flexgrid Directly, at runtime. i have assigned the x-coordinates to the variable cat and the y-coodinates to the variable dog- how can i draw a line between these two variables???

[coolcat]

Mistake!!!!!
we have entered the variables into the flexgrid and into an array. How do we then plot these variables from the array/flexgrid???
Any help is much appreciated.
coolcat