SendMessage() doesnt work

[anne03]

Hi to everyone i just have this one question, if this function

SendMessage(hwndP, WM_HSCROLL,  SB_LINERIGHT, 0);

doesnt work, what would be the reason?
and is there an alternative way or other functions that do the same?

THANK U VERY MUCH!

[iPromise]

// Double check hwndP, make sure the message is not sent by the scroll bar, or else add the handle of the scroll bar to the lparam.

SendMessage(hwndP, WM_HSCROLL, LOWORD(SB_LINERIGHT), NULL);

[anne03]

i read and tried you code still the scrollbar and the page didnt move, the only difference is you used LOWORD it will just retrieves the low-order word and NULL or 0 is OK...

// Double check hwndP, make sure the message is not sent by the scroll bar, or else add the handle of the scroll bar to the lparam.

what do you mean ADD THE HANDLE OF THE SCROLLBAR TO THE LPARAM?

note: the hwndP is the handle itself to the scrollbar.

THANK U VERY MUCH!