vkrisz81 Posted February 18, 2016 Share Posted February 18, 2016 hello so i tried but i cant find out WHY not i wanted to draw a single rectangle to an existing image file to test gdi. but nothing happens maybe i use wrong that gdi i dont know, but i could not find a simple example for it.. $bitmap=_GDIPlus_ImageLoadFromFile(@ScriptDir&"\image1.jpg") $bitmap_w=_GDIPlus_ImageGetWidth($bitmap) $hBrush = _GDIPlus_BrushCreateSolid(0x7F00007F) _GDIPlus_GraphicsFillRect($bitmap,2,2,100,123,$hBrush) _GDIPlus_ImageSaveToFile($bitmap,@ScriptDir&"\image1_b.jpg") _GDIPlus_ImageDispose($bitmap) so maybe miss something? i cant understand really its logic.. Link to comment Share on other sites More sharing options...
InunoTaishou Posted February 18, 2016 Share Posted February 18, 2016 Looks like you're just trying to draw a rectangle and save it, not draw it. You can draw on bitmaps and you can draw on graphics objects, you cannot draw directly on images loaded from file. Of course I'm sure some GDI+ guru knows how to do it, just not me. _GDIPlus_Startup() ; Load the image from the file Local $hWnd_image = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\image1.png") ; Create a bitmap based on the width and height of the image Local $hWnd_bitmap = _GDIPlus_BitmapCreateFromScan0(_GDIPlus_ImageGetWidth($hWnd_image), _GDIPlus_ImageGetHeight($hWnd_image)) ; create a graphics object from the bitmap Local $hWnd_graphics = _GDIPlus_ImageGetGraphicsContext($hWnd_bitmap) ; draw the image onto the graphic _GDIPlus_GraphicsDrawImage($hWnd_graphics, $hWnd_image, 0, 0) ; draw a filled rectangle _GDIPlus_GraphicsFillRect($hWnd_graphics, 2, 2, 100, 123) ; save the bitmap that was used to create the graphic _GDIPlus_ImageSaveToFile($hWnd_bitmap, @ScriptDir & "\image1_b.jpg") ; clean up resources _GDIPlus_ImageDispose($hWnd_image) _GDIPlus_ImageDispose($hWnd_bitmap) _GDIPlus_GraphicsDispose($hWnd_graphics) _GDIPlus_Shutdown() Link to comment Share on other sites More sharing options...
vkrisz81 Posted February 19, 2016 Author Share Posted February 19, 2016 yes i wanted to modify directly an image because as if i would like to make watermark, put my logo to photos on my directory, but at first i wish only to be able to draw a rectangle and after it to be able to write some letters to my rectanlge to a given image. i test your script ty Link to comment Share on other sites More sharing options...
vkrisz81 Posted February 19, 2016 Author Share Posted February 19, 2016 so i tried your script but nothing happens :S there is no the new file. i dont know if this is problem, but you start with a PNG file but i have JPG source. i think gdi should handle it so maybe other problem.. Link to comment Share on other sites More sharing options...
UEZ Posted February 19, 2016 Share Posted February 19, 2016 The _GDIPlus_Graphics* draw/fill functions need a graphic handle not an image handle. You have to create a wrapper handle using _GDIPlus_ImageGetGraphicsContext to be able to draw to the image, Try this: #include <GDIPlus.au3> _GDIPlus_Startup() $bitmap=_GDIPlus_ImageLoadFromFile(@ScriptDir&"\image1.jpg") $hGfx=_GDIPlus_ImageGetGraphicsContext($bitmap) $bitmap_w=_GDIPlus_ImageGetWidth($bitmap) $hBrush=_GDIPlus_BrushCreateSolid(0x7F00007F) _GDIPlus_GraphicsFillRect($hGfx,2,2,100,123,$hBrush) _GDIPlus_ImageSaveToFile($bitmap,@ScriptDir&"\image1_b.jpg") _GDIPlus_GraphicsDispose($hGfx) _GDIPlus_ImageDispose($bitmap) _GDIPlus_BrushDispose($hBrush) _GDIPlus_Shutdown() Please don't send me any personal message and ask for support! I will not reply! Selection of finest graphical examples at Codepen.io The own fart smells best! ✌Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!¯\_(ツ)_/¯ ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ Link to comment Share on other sites More sharing options...
vkrisz81 Posted February 19, 2016 Author Share Posted February 19, 2016 (edited) does happen every! finally just could do it ty uez, now i can start seeking the world of gdi functions.. so it works! now i can step forward to be able to type to the picture Edited February 19, 2016 by vkrisz81 Link to comment Share on other sites More sharing options...
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