Gets the starting color and ending color of a linear gradient brush
#include <GDIPlus.au3>
_GDIPlus_LineBrushGetColors ( $hLineGradientBrush )
| $hLineGradientBrush | Pointer to a LinearGradientBrush object |
| Success: | an array containing the starting and ending colors of the LinearGradientBrush: [0] - Starting color [1] - Ending color |
| Failure: | sets the @error flag to non-zero, @extended may contain GPSTATUS error code error code ($GPIP_ERR* see GPIPlusConstants.au3). |
Search GdipGetLineColors in MSDN Library.
#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <MsgBoxConstants.au3>
Example()
Func Example()
_GDIPlus_Startup() ;initialize GDI+
Local Const $fWidth = 600, $fHeight = 600, $iBgColor = 0x303030 ;$fBGColor format RRGGBB
Local $hGUI = GUICreate("GDI+ Example (" & @ScriptName & ")", $fWidth, $fHeight) ;create a test GUI
GUISetBkColor($iBgColor, $hGUI) ;set GUI background color
GUISetState(@SW_SHOW)
Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;create a graphics object from a window handle
_GDIPlus_GraphicsSetSmoothingMode($hGraphics, $GDIP_SMOOTHINGMODE_HIGHQUALITY) ;sets the graphics object rendering quality (antialiasing)
Local $hBrush = _GDIPlus_LineBrushCreate(0, 0, 150, 0, 0xFF000000 + Random(0x111111, 0xFFFFFF, 1), 0xFF000000 + Random(0x111111, 0xFFFFFF, 1), 1) ;create linear gradient flipped brush
_GDIPlus_GraphicsClear($hGraphics, 0xFF000000 + $iBgColor) ;clear bitmap
_GDIPlus_GraphicsFillRect($hGraphics, 100, 50, 380, 500, $hBrush) ;draw the egg again
Local $aColors = _GDIPlus_LineBrushGetColors($hBrush)
MsgBox($MB_SYSTEMMODAL, "", "Starting hex color: " & Hex($aColors[0], 8) & @CRLF & "End hex color: " & Hex($aColors[1], 8))
Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE
;cleanup GDI+ resources
_GDIPlus_BrushDispose($hBrush)
_GDIPlus_GraphicsDispose($hGraphics)
_GDIPlus_Shutdown()
GUIDelete($hGUI)
EndFunc ;==>Example