Function Reference

_GDIPlus_ImageLoadFromFile

Create an image object based on a file

#include <GDIPlus.au3>
_GDIPlus_ImageLoadFromFile ( $sFileName )

Parameters

$sFileName Fully qualified image file name

Return Value

Success: a handle to the new image object.
Failure: 0 and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GDIP_ERR* see GPIPlusConstants.au3).

Related

_GDIPlus_ImageSaveToFile, _GDIPlus_ImageSaveToFileEx

See Also

Search GdipLoadImageFromFile in MSDN Library.

Example

Example 1

#include <GDIPlus.au3>
#include <ScreenCapture.au3>

Example()

Func Example()
    Local $hImage, $sCLSID, $tData, $tParams

    ; Screen Capture
    _ScreenCapture_Capture(@MyDocumentsDir & "\GDIPlus_Image.jpg")

    ; Initialize GDI+ library
    _GDIPlus_Startup()

    ; Load image
    $hImage = _GDIPlus_ImageLoadFromFile(@MyDocumentsDir & "\GDIPlus_Image.jpg")

    ; Get JPEG encoder CLSID
    $sCLSID = _GDIPlus_EncodersGetCLSID("JPG")

    ; Set up parameters for 90 degree rotation
    $tData = DllStructCreate("int Data")
    DllStructSetData($tData, "Data", $GDIP_EVTTRANSFORMROTATE90)
    $tParams = _GDIPlus_ParamInit(1)
    _GDIPlus_ParamAdd($tParams, $GDIP_EPGTRANSFORMATION, 1, $GDIP_EPTLONG, DllStructGetPtr($tData, "Data"))

    ; Save image with rotation
    _GDIPlus_ImageSaveToFileEx($hImage, @MyDocumentsDir & "\GDIPlus_Image2.jpg", $sCLSID, $tParams)

    ; Clean up resources
    _GDIPlus_ImageDispose($hImage)

    ; Shut down GDI+ library
    _GDIPlus_Shutdown()

    ShellExecute(@MyDocumentsDir & "\GDIPlus_Image2.jpg")
EndFunc   ;==>Example

Example 2

; PNG work around by Zedna

#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <WinAPIGdi.au3>
#include <WindowsNotifsConstants.au3>

; Create GUI
Global $g_hGUI = GUICreate("Show PNG", 250, 250)

; Load PNG image
_GDIPlus_Startup()
Global $g_hImage = _GDIPlus_ImageLoadFromFile("..\GUI\Torus.png")
Global $g_hGraphic = _GDIPlus_GraphicsCreateFromHWND($g_hGUI)

GUIRegisterMsg($WM_PAINT, "MY_WM_PAINT")
GUISetState(@SW_SHOW)

; Loop until the user exits.
While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            ExitLoop

    EndSwitch
WEnd

; Clean up resources
_GDIPlus_GraphicsDispose($g_hGraphic)
_GDIPlus_ImageDispose($g_hImage)
_GDIPlus_Shutdown()

; Draw PNG image
Func MY_WM_PAINT($hWnd, $iMsg, $wParam, $lParam)
    #forceref $hWnd, $iMsg, $wParam, $lParam
    _WinAPI_RedrawWindow($g_hGUI, 0, 0, $RDW_UPDATENOW)
    _GDIPlus_GraphicsDrawImage($g_hGraphic, $g_hImage, 0, 0)
    _WinAPI_RedrawWindow($g_hGUI, 0, 0, $RDW_VALIDATE)
    Return $GUI_RUNDEFMSG
EndFunc   ;==>MY_WM_PAINT