ROTATE / FLIP IMAGES WITH VFP9 AND GDI+

Rotating and / or flipping images is a simple task for gdi+. to see the different results possible, change the constant value in the parameter "rotateflip" in the code below.

*-- rotatefliptype constants
#define rotatenoneflipnone 0
#define rotate90flipnone   1
#define rotate180flipnone  2
#define rotate270flipnone  3

#define rotatenoneflipx    4
#define rotate90flipx      5
#define rotate180flipx     6
#define rotate270flipx     7

local lcsource, lcdestination

lcsource = getpict("jpg;gif;bmp")

local loimage as gpimage of ffc/_gdiplus.vcx
loimage = newobject("gpimage",home()+"ffc/_gdiplus.vcx")
loimage.createfromfile(lcsource)

loimage.rotateflip(Rotate180FlipNone) && try changing using the constants above
loimage.savetofile("flipped.png","image/png")

run /n explorer.exe flipped.png



RotateNoneFlipNone 0 

Rotate90FlipNone   1 

Rotate180FlipNone  2 

Rotate270FlipNone  3 

RotateNoneFlipX    4 

Rotate90FlipX      5 

Rotate180FlipX     6 

Rotate270FlipX     7 



See also this blog post:

Use encoder parameters to save your images with gdi+