nanogui: Button problem.
Subject:
Re: Re: Button problem.
From:
debit ####@####.####
Date:
31 Aug 2000 02:12:11 -0000
Message-Id:
Hello,Greg Haerr.
>This is probably complicated. Are you
>running in Win32 or Nano-X API? The problem is
>likely that the server doesn't pass the button the UP
>event after the mouse has moved away from the
>button. In the Win32 API, you have to capture the mouse
>when the button is down.
>
>Which demo are you running? Is this problem with
>the BUTTON control or with the scrollbar buttons?
>
I'm running the application in Win32,using the linux os.
The application has some buttons
I use the following method to create BUTTON control:
CreateWindowEx(0L, "BUTTON", "Click me",
BS_PUSHBUTTON| WS_CHILD | WS_VISIBLE,
10, 50, 60, 20,
hwnd, (HMENU)EVENTBTN, NULL, NULL);
In the and catch the button event when it receive WM_COMMAND message:
case WM_COMMAND:
switch(LOWORD(wParam)) {
case EVENTBTN :
if( HIWORD(wParam) == BN_CLICKED)
SetWindowText( hwnd_txt, (LPSTR)" Hello World!");
break;
....
}
....
I find out when this happens, the "break;" line has been executed.
In other word,it has already returned by the event CALLBACK function.
Best regard.
debit
####@####.####
