Hi,
The suggested change is done and committed to the SVN.
Actually the use of the flag ILC_MASK should be a copy&paste from some
sample code. I don't know for sure why we used it. In IupTree we don't use
it.
Thanks for the fix.
BTW, just that solves your transparency problem?
Best,
Scuri
On Fri, Feb 20, 2015 at 8:09 AM, Nodir Temirkhodjaev <[email protected]>
wrote:
> Hello,
>
> I'm trying to use 32bpp bitmap for tab in Lua by:
> tabimage = "image.bmpx"
> It shows the image, but it's not transparent (white bg).
>
> Bitmap file saved from Paint.Net with BMPX plugin.
>
> As described in [1]:
> "
> - Export your PNG data as a 32x16 32bpp bitmap file containing
> pre-multiplied alpha channel data.
> - Create the imagelist using the ILC_COLOR32 value.
> - LoadImage() with LR_CREATEDIBSECTION to load the bitmap as a 32bpp dib
> section.
> - Add the image using ImageList_Add()
> "
>
> Please consider to change following lines in "src\win\iupwin_tabs.c", line
> 359:
> ===
> image_list = (HIMAGELIST)SendMessage(ih->handle, TCM_GETIMAGELIST, 0, 0);
> if (!image_list)
> {
> UINT flags = ILC_COLOR32|ILC_MASK;
>
> /* must use this info, since image can be a driver image loaded from
> resources */
> iupdrvImageGetInfo(bmp, &width, &height, &bpp);
>
> /* create the image list if does not exist */
> image_list = ImageList_Create(width, height, flags, 0, 50);
> SendMessage(ih->handle, TCM_SETIMAGELIST, 0, (LPARAM)image_list);
> }
> else
> iupdrvImageGetInfo(bmp, &width, &height, &bpp);
> ===
>
> to:
> ===
> /* must use this info, since image can be a driver image loaded from
> resources */
> iupdrvImageGetInfo(bmp, &width, &height, &bpp);
>
> image_list = (HIMAGELIST)SendMessage(ih->handle, TCM_GETIMAGELIST, 0, 0);
> if (!image_list)
> {
> UINT flags = ILC_COLOR32|(bpp == 8 ? ILC_MASK : 0);
>
> /* create the image list if does not exist */
> image_list = ImageList_Create(width, height, flags, 0, 50);
> SendMessage(ih->handle, TCM_SETIMAGELIST, 0, (LPARAM)image_list);
> }
> ===
>
> [1]
> http://stackoverflow.com/questions/632622/imagelist-transparency-on-listviews
>
> -- Nodir
>
>
>
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