Takes a string expression argument and returns the same string, allowing you to paint inside a DataWindow object in a way that respect the position and z-order of other DataWindow objects.
Paint ( expr )
Argument |
Description |
|---|---|
expr |
Any valid DataWindow expression. It should contain a function call to a drawing global function with rendering logic. If expr is a string expression and the value is not null, the computed field will render the evaluated string expression. |
String. The Paint expression function takes a string expression argument and returns the same string.
This example instantiates the drawing functions and, if the drawing function returns false, the text “No Pie” displays.
Paint
(
MyDrawPieSlice
(
GetPaintDC()
GetPaintRectX()
GetPaintRectY()
GetPaintRectWidth()
GetPaintRectHeight()
GetRow()*100/RowCount()
)
)
Paint
(
MyDrawPieSlice
(
GetPaintDC(),
GetRow()*100/RowCount()
)
)
Paint
(
if MyDrawPieSlice(GetPaintDC()),"","No Pie")
)
