` Extracting hight and low order values (Larry Sand) - Icetips Article
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Windows API: Extracting hight and low order values
2002-03-06 -- Larry Sand
 
Newsgroups: comp.lang.clarion,softvelocity.products.c55ee Robert, If you have this prototype: ScWndProc PROCEDURE(UNSIGNED hWnd, | UNSIGNED uMsg, | UNSIGNED wParam, | LONG lParam)!,LONG,PASCAL As Edward notes, the word order of an Intel 32 bit integer is reversed, so define this structure over the wParam to get the low order word containing the scroll bar value. wP GROUP,OVER(wParam) low USHORT high USHORT END Then you can do some thing like: CASE wP.low OF SB_LEFT !handle the upper left scroll .... END Cheers, Larry Sand "Robert Rodgers" wrote in message news:3c86c6cc$1@news.softvelocity.com... | Hi All, | | I need to capture the horizontal scrolling events for a clarion list box. I | am using a call back. I am getting the WM_HSCROLL alright but I am not able | to determine what the event is. Apparently the request is in the low-order | word of the wparam. I haven't stumbled onto the magic to make this work | yet. |

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