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Hey guys, I need help. Here is the problem: I put a ListView and a ImageList on a form, need to add add dropped file icon to listview, and encounter some problems...(Thanks in advance)...

canadiantire(轮胎-M.I.N.K.)

Here is what i did:

Approach 1:
1. Add one icon to the ImageList
2. Set ListView.Icons to ImageList
3. Set ListView.OLEDropMode to 1
4. In ListView.OleDragDrop Event, add ...
___a) check if GetFormat(15) is true
___b) use SHGetFileInfo() to get drop file name
___c) Get Icon handle
___d) API Call: ImageList_ReplaceIcon(hImageList, -1, hIcon), and return value is valid (2)
___e) call ListView.ListItems.Add() to add new Item, failed, index of out of bound
___f) check ImageList.ListImages.Count, it is one, which means no new icon is added

Approach Two:
1. Add one icon to the ImageList
2. SendMessage(hListView, 0x1003, 0, hImageList), failed, return is not valid (0), which mean cannot associate the Imagelist with ListView.

Any suggestion?

(#2152455@0)
Last Updated: 2005-3-1
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工作学习 / IT技术讨论 / Hey guys, I need help. Here is the problem: I put a ListView and a ImageList on a form, need to add add dropped file icon to listview, and encounter some problems...(Thanks in advance)... -canadiantire(轮胎-M.I.N.K.); 2005-3-1 {782} (#2152455@0)
Here is what i did:

Approach 1:
1. Add one icon to the ImageList
2. Set ListView.Icons to ImageList
3. Set ListView.OLEDropMode to 1
4. In ListView.OleDragDrop Event, add ...
___a) check if GetFormat(15) is true
___b) use SHGetFileInfo() to get drop file name
___c) Get Icon handle
___d) API Call: ImageList_ReplaceIcon(hImageList, -1, hIcon), and return value is valid (2)
___e) call ListView.ListItems.Add() to add new Item, failed, index of out of bound
___f) check ImageList.ListImages.Count, it is one, which means no new icon is added

Approach Two:
1. Add one icon to the ImageList
2. SendMessage(hListView, 0x1003, 0, hImageList), failed, return is not valid (0), which mean cannot associate the Imagelist with ListView.

Any suggestion?

up -canadiantire(轮胎-M.I.N.K.); 2005-3-1 (#2152490@0)
/. -canadiantire(轮胎-M.I.N.K.); 2005-3-1 (#2152513@0)
救不了你。几年前我做过半年Delphi程序员，和这些冬冬打过交道，现在已经忘光了。 -thisunreal(饭得志); 2005-3-1 (#2152528@0)

谢谢。 -canadiantire(轮胎-M.I.N.K.); 2005-3-1 (#2152529@0)

try this control. You can do what ever you want. Very powerful. I did some very complex treeview/listview application base on that. It is very fast. -nealzhao(neal); 2005-3-1 (#2152534@0)

Thank you too, I might consider it if there is no workaround of the #$%^ ListView -canadiantire(轮胎-M.I.N.K.); 2005-3-1 (#2152542@0)

自己解决了。。 -canadiantire(轮胎-M.I.N.K.); 2005-3-2 {301} (#2154047@0)
1. Plain API call 得到的Image Count 与调用COM 接口得到的并不一样。
2. MSDN 上说ImageList_ReplaceIcon() 中的第二个参数index 设置成-1表示把Image add to Imagelist, 这个没有错。但是新加入的Image通过COM接口访问不到。
3. 解决办法：预先将Icon加入到ImageList。在OLEDragDrop 方法中用新hIcon的替换现有的icon,

@Calgary

Hey guys, I need help. Here is the problem: I put a ListView and a ImageList on a form, need to add add dropped file icon to listview, and encounter some problems...(Thanks in advance)...

Replies, comments and Discussions:

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