Mike,

Simple enough to make it not crash. You defined

Function: LBItemFromPt ( hLB pPoint bAutoScroll -- item# )

based on reading the api definition

int LBItemFromPt(

    HWND hLB,
    POINT pt,
    BOOL bAutoScroll
   );

This is one of the *really* misleading features in the api.
Note the second parameter of type POINT -- this is a structure
passed in the stack frame, which occupies two paramter entries.
So the correct definition of the api call is

Function: LBItemFromPt ( hLB px py bAutoScroll -- item# )

Hope this helps.

Rick VanNorman

*********** REPLY SEPARATOR ***********

On 11/5/2000 at 5:50 PM Mike Ghan wrote:

>Has anyone been successful implementing "Drag List Boxes" inside
>of a dialog? It appears to be fairly straight forward but after
>a full day of trying, I can't get past a page fault in Kernel.dll
>when I attempt to execute LBItemFromPt in the definition
>DRAGGER (about half way down). File attached is about 100 lines.
Received on Mon Nov 06 2000 - 07:50:14 PST