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
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