Zoom out /in on a bitmap

[darth vader]

Can anyone guide me how can i upon loading a bitmap incorporate a zoom in .out feature on the map of JPEG


wat are the steps i have to do , any ref to follow thanks

[Luke schreur]

Can't help you on loading a JPEG directly maybe you want to checkout Intel's site, they've got a realy good JPEG library. You can find it over here: http://www.intel.com/software/produc.../ijl/index.htm

After you've loaded your bitmap and selected it into a DC you can use StretchBlt to zoom in or out on the bitmap when bltting it to your window DC. Pretty simple....

Cheers

[darth vader]

i am able to resolve the jpeg with my custom load class but i have problem of zooming in /out


has been cracking my head ??? is there any ref or exampl to understand the logic

[Luke schreur]

Have you by now checked the MSDN on the StretchBlt API function? All you answers are there...

Good luck!

[Winni]

Hi,

also have a look at GDI+ from MS. Its a new GDI library used in XP, that supports loading and displaying various file formats with zooming, stretching, rotating...

cu,

Winni

[darth vader]

would appreciate u can direct me to the ref or example in detail a bit behind schedule. Thanks