ImageButton 1.43 - Changelog

Changelog

fix: the handle to the theme was not set to NULL after release, so even if the theme handle pointed to nothing it wasn't recreated on subsequent calls to ImageButton_Create

add: function to add more than one button at a time
fix: wrong button appearance when the button was pressed and disabled before the button was depressed (eg if you disable it while you're handling its notification message)
fix: non-client area not being redrawn when the button was disabled after being hovered
fix: button state not being changed when the parent window is disabled.

fix: ImageButton was releasing the uxtheme dll handle for an erroneous check and after it was no longer able to reload it. This was causing the button XP visual style to not be drawn at all, and (most of the time) a crash

add: you can now set a disabled image
add: slightly changed the way bitmaps are set and handled
add: changed the way images are drawn. If, on the button's current state, there's no appropriate image to be drawn, the text is centered (like there is no image)
add: you can now set a grayed image as disabled image and a lighter image as hover, starting from the normal image
fix: in the WM_DRAWITEM handler, before searching the imagebuttons vector for the window handle, i now check if the window to be ownerdrawn is a button
fix: changed the way the buttons are displayed under windows < XP. Now they look the same as the other buttons
fix: changed the way bitmaps are drawn. DrawState is used instead of a memoryDC + Stretch Blt
fix: restored the ability to set a button without images
fix: the UNICODE version now works fine
fix: moved the WM_THEMECHANGED notification handler from the button proc to the parent button proc
fix: moved the code where i check whether or not to free the uxtheme instance from the parent button proc to the button proc (since the imagebutton vector can't be empty before destroying the buttons)
fix: the demo executable was calling DestroyWindow && PostQuitMessage but the dialog was modal

fix: the create functions no longer require the button text. The button text is obtained with GetWindowText when drawing.
fix: avoid setting the default cursor if the cursor handle is NULL
fix: when setting an image from IDs, if an error occur the image are now freed before the function returns
fix: removed the unneeded function comments in the source file
fix: namespace to avoid name collision
fix: removed the hard-coded path for the output in the demo's Codeblock project

fix: the ImageButton source file was erroneously saved as a C file (but i was already using new/delete, overloading, etc.) and if you tried to compile it on the Microsoft compiler, you'd get a bunch of errors. Now it's a .cpp file.
fix: the number of buttons is no longer fixed but dynamic, thanks to the use of the std::vector.
fix: the button's caption is now stored in a std::string. Just easier to handle.
add: the extension now supports Unicode.
fix: the handles to the images were not destroyed before being substituted.
fix: thanks to the use of vector, and the removal of useless repetitive code, the ImageButton source file has been reduced by 200 lines!

add: the image now stick to text, whatever is the lenght of the text. No longer fixed position: if there's no text, the image will be centered. The longer the text, the more the image will move to the left until it reaches the border.
add: The default behavior of the button is now complete: when you click on the button and, holding down the mouse button, you move the mouse outside the client area of the button and reenter it, the button will switch from pressed to normal state.
fix: fixed the flickering of the button when the mouse is moved outside the client area
fix: the text will now be allocated on the heap and not on the stack (dynamically and not statically) and it's no longer a copy of pointers. Infact, in the old version it was impossible to assign an array to the button.
fix: fixed some GDI resource leak

add: now you can load images from DLL/EXEs
add: now you can load icons with any dimension you want
fix: the code has been shorten and improved
add: now you can create an owner draw button without specifying images
fix: fixed bug where the prop of some buttons were not moved a structure down when a button was destroyed
fix: fixed bug where the theme library would be released before all the buttons were destroyed

This page was last modified 39 months, 2 weeks, 4 days and 8 hours ago