image lists, icons and treeviews

[bennyandthejets]

i want to learn the basics of images in win32. id just like to add a standard Windows icon to an image list and then use that image list with my treeview control. can someone help? no mfc please.

[bennyandthejets]

i tried it on my own while waiting for some gracious soul to reply to this post(which hasn't happened), and i had troubles setting the image list to the tree view control. code:

HBITMAP hBit;
HIMAGELIST hList;
			
hBit=(HBITMAP)LoadImage(NULL,"icon.ico",IMAGE_ICON,0,0,LR_LOADFROMFILE);
hList=ImageList_Create(16,16,ILC_COLOR,1,0);
ImageList_Add(hList,hBit,NULL);

TreeView_SetImageList(hwndTree,hList,TVSIL_NORMAL);

the last line of code returns NULL. what have i done wrong?

[bennyandthejets]

i found out some more stuff. i can load in a bitmap, but not an icon. ie, not a .ico file. heres the icon code that doesn't work.

HBITMAP hBit;
HIMAGELIST hList;

hBit=(HBITMAP)LoadImage(NULL,"gta3.ico",IMAGE_ICON,32,32,LR_LOADFROMFILE);
hList=ImageList_Create(32,32,ILC_COLOR,1,1);
ImageList_Add(hList,hBit,(HBITMAP)NULL);

after that code, i check the image count in the list, and there's nothing there, but it works fine with a normal bitmap. does that help anyone to help me?

[dizolve]

I'm not experienced with image lists but try LoadIcon

[bennyandthejets]

loadicon is for loading resources. i want to load directly from an .ico file. someone must know how to do it.

[bennyandthejets]

oops i posted twice. the second one is updated.

[bennyandthejets]

ok, i gave in and made the icon a resource. now i cant work out how to load the resource. i loaded it successfully with loadicon when i made it the hIcon of the window class, but i couldn't get loadicon OR loadimage to work when i tried to add it to an image list.

HBITMAP hBit;
HIMAGELIST hList;
		
hBit=(HBITMAP)LoadImage(hInst,(LPCTSTR)IDI_APP,IMAGE_ICON,16,16,NULL);
hList=ImageList_Create(16,16,ILC_COLOR,1,1);
ImageList_Add(hList,hBit,(HBITMAP)NULL);

No image is added to the list.
???

[Cheeze-It]

What about ImageList_AddIcon()?

ImageList_AddIcon(HIMAGELIST himl, HICON hicon);

[bennyandthejets]

yeah that turned out to be the one. i looked through my win32 reference, and surprise surprise, addicon appears. i feel like real jerk .