Script Library: 1238 scripts


Rebol [ title: "Title Bar - Windows API" date: 1-july-2008 file: %title-bar.r author: Nick Antonaccio purpose: { This example demonstrates how to use the Windows API to adjust the title bar in your Rebol programs. Just include this code in your script if you need to eliminate the default 'Rebol - ' text at the top of your GUI programs. Taken from the tutorial at } ] ; first define the Windows API functions you'll need: user32.dll: load/library %user32.dll get-focus: make routine! [return: [int]] user32.dll "GetFocus" set-caption: make routine! [hwnd [int] a [string!] return: [int]] user32.dll "SetWindowTextA" ; next, create your GUI - be sure to use 'view/new', so that it doesn't appear immediately ; (start the GUI later with 'do-events', after you've changed the title bar below): view/new center-face layout [ size 360x240 backcolor white text bold "Notice that there's no 'Rebol - ' in the title bar above." across at 110x100 btn "Change Title" [ ; these functions change the text in the title bar: hwnd-set-title: get-focus set-caption hwnd-set-title "Tada!" ] btn "Exit" [ ; be sure to close the dll when you're done: free user32.dll quit ] ] ; once you've created your GUI, run the Dll functions to replace the default text in the title bar: hwnd-set-title: get-focus set-caption hwnd-set-title "My Title" ; finally, start your GUI: do-events NOTES: { Not needed for this example, but this is another useful function you'll run into when manipulating Rebol windows. You'll often see a value needed for "hwnd". Here's one way to get it: find-window-by-class: make routine! [ClassName [string!] WindowName [integer!] return: [integer!]] user32.dll "FindWindowA" hwnd: find-window-by-class "REBOLWind" 0 Have fun playing with the Windows API! }
halt ;; to terminate script if DO'ne from webpage