PNG to BMP

[Matteo]

Hi, i've a problem (i think this topic is alredy exist,but i don't find it),so:can i convert a image PNG to a BMP?please help me.

[Zedna]

Search for GDI+

It's in Auto3Library or in latest beta UDF.

[smashly]

Example as Zedna said using AutoIt (beta) v3.2.9.14

#Include <GDIPlus.au3>

_GDIPlus_Startup()
$hImage = _GDIPlus_ImageLoadFromFile(@SystemDir & "\DirectX\Dinput\act_rs.png")
$sCLSID = _GDIPlus_EncodersGetCLSID("BMP")
_GDIPlus_ImageSaveToFileEx($hImage, @ScriptDir & "\act_rs.bmp", $sCLSID)
_GDIPlus_ShutDown()

Cheers

Edit: Changed output from jpg to bmp.

Edited November 23, 2007 by smashly

[Matteo]

I try it, but it say:

C:\Programmi\AutoIt3\Include\GDIPlus.au3 (2026) : ==> Subscript used with non-Array variable.: 
Return SetError($aResult[0], 0, $aResult[2]) 
Return SetError($aResult^ ERROR
->15:02:22 AutoIT3.exe ended.rc:1
+>15:02:23 AutoIt3Wrapper Finished
>Exit code: 1   Time: 17.064

[Zedna]

I try it, but it say:

C:\Programmi\AutoIt3\Include\GDIPlus.au3 (2026) : ==> Subscript used with non-Array variable.: 
Return SetError($aResult[0], 0, $aResult[2]) 
Return SetError($aResult^ ERROR
->15:02:22 AutoIT3.exe ended.rc:1
+>15:02:23 AutoIt3Wrapper Finished
>Exit code: 1    Time: 17.064

Use latest beta.

It works fine with 3.2.9.14 on my WINXP

[martin]

Use latest beta.

It works fine with 3.2.9.14 on my WINXP

I think yo are wrong Zedna. See this example of one of the functions in GDIPlus.au3

Func _GDIPlus_ImageLoadFromFile($sFileName)
    Local $aResult

    $aResult = DllCall($ghGDIPDll, "int", "GdipLoadImageFromFile", "wstr", $sFileName, "int*", 0)
    Return SetError($aResult[0], 0, $aResult[2])
EndFunc  ;==>_GDIPlus_ImageLoadFromFile

If there is an error in a dllcall then @error is set to 1 or 2 or 3 and the return result is not an array as assumed. I think the functions need to be corrected.

[Zedna]

I think yo are wrong Zedna. See this example of one of the functions in GDIPlus.au3

Func _GDIPlus_ImageLoadFromFile($sFileName)
    Local $aResult

    $aResult = DllCall($ghGDIPDll, "int", "GdipLoadImageFromFile", "wstr", $sFileName, "int*", 0)
    Return SetError($aResult[0], 0, $aResult[2])
EndFunc  ;==>_GDIPlus_ImageLoadFromFile

If there is an error in a dllcall then @error is set to 1 or 2 or 3 and the return result is not an array as assumed. I think the functions need to be corrected.

You are right.

There is weak error checking.

But it should work OK as it is if no error occurs - for example not existing image or not installed GDI+ on WIN9x

EDIT: now I tested it also on my WIN98 and it works OK too

Edited November 25, 2007 by Zedna

[Greenhorn]

Hi, i've a problem (i think this topic is alredy exist,but i don't find it),so:can i convert a image PNG to a BMP?please help me.

Do you wanna do it with AutoIt or just generally how to convert a PNG to BMP !?

Greetz

Greenhorn