Hi there!<br><br>I'm a new programmer in Windows API, and I don't know, how I can use trackbars (or: "sliders", dunno how they're usually called here). I've created my resource, and now, I want to open the dialog via "DialogBox(...)", but the function returns any error (return value is -1). I don't know, why that is, if I remove the trackbar from my resource, all works great, the dialog opens.<br><br>Thanks for help<br><br>Neals<br>