Add a value to an encoder parameter list
#include <GDIPlus.au3>
_GDIPlus_ParamAdd ( ByRef $tParams, $sGUID, $iNbOfValues, $iType, $pValues )
| $tParams | $tagGDIPENCODERPARAMS structure returned from _GDIPlus_ParamInit() |
| $sGUID | Encoder parameter GUID. Can be one of the following: $GDIP_EPGCHROMINANCETABLE - Chrominance table settings $GDIP_EPGCOLORDEPTH - Color depth settings $GDIP_EPGCOMPRESSION - Compression settings $GDIP_EPGLUMINANCETABLE - Luminance table settings $GDIP_EPGQUALITY - Quality settings $GDIP_EPGRENDERMETHOD - Render method settings $GDIP_EPGSAVEFLAG - Save flag settings $GDIP_EPGSCANMETHOD - Scan mode settings $GDIP_EPGTRANSFORMATION - Transformation settings $GDIP_EPGVERSION - Software version settings |
| $iNbOfValues | Number of elements in the $pValues array |
| $iType | Encoder parameter value type. Can be one of the following: $GDIP_EPTBYTE - 8 bit unsigned integer $GDIP_EPTASCII - Null terminated character string $GDIP_EPTSHORT - 16 bit unsigned integer $GDIP_EPTLONG - 32 bit unsigned integer $GDIP_EPTRATIONAL - Two longs (numerator, denominator) $GDIP_EPTLONGRANGE - Two longs (low, high) $GDIP_EPTUNDEFINED - Array of bytes of any type $GDIP_EPTRATIONALRANGE - Two longs (low, high) |
| $pValues | Pointer to an array of values. Each value has the type specified by the $iType data member. |
$tagGDIPENCODERPARAMS, _GDIPlus_ParamInit
#include <GDIPlus.au3>
#include <ScreenCapture.au3>
Example()
Func Example()
Local $hImage, $sCLSID, $tData, $tParams
; Capture screen
_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)
; Shut down GDI+ library
_GDIPlus_Shutdown()
ShellExecute(@MyDocumentsDir & "\GDIPlus_Image2.jpg")
EndFunc ;==>Example