imagelist

问题 Just wondering if there is a way to populate an ImageList from a Resource file. I have looked around on the web, but everything seems to have been from back in 2003/2005. Any advice would be appreciated thanks in advance. 回答1: Here is an example of reading all images in a resource into an ImageList. var dynamicImageList = new ImageList(); var resourceSet = MyResourceClass.ResourceManager.GetResourceSet(CultureInfo.InvariantCulture, true, false); if (resourceSet != null) { foreach

问题 D2009 introduces PNG support for Images and Imagelists. However... I have an imagelist containing png images with alpha. I want to place one of these on a form using a TImage. How do I do this and get the image nicely composited? As an example of the problem I'm facing the code below fails to work correctly, and produces the effect shown: ImageList.GetBitmap(index, Image1.Picture.Bitmap); (source: clip2net.com) To explain a bit more: Drop a Timage on a form, and at design time, load a PNG

问题 D2009 introduces PNG support for Images and Imagelists. However... I have an imagelist containing png images with alpha. I want to place one of these on a form using a TImage. How do I do this and get the image nicely composited? As an example of the problem I'm facing the code below fails to work correctly, and produces the effect shown: ImageList.GetBitmap(index, Image1.Picture.Bitmap); (source: clip2net.com) To explain a bit more: Drop a Timage on a form, and at design time, load a PNG

问题 I have some images that i added to imageList Cotrol manually. Now i need remove thart images from imageList depending on the key index and set as panel backgroud. How should i do it 回答1: Images that you added in Image list are added to the ImageList.ImageCollection, so it is collection type then you can use most of the collection methods. Use the Images property to add, remove and access the image to display in background of panel. Add(key,image) Remove() RemoveAt() RemoveByKey() Check the

问题 In Visual C++, I have a CMFCOutlookBarTabCtrl that has been created with: CMFCOutlookBarTabCtrl* pOutlookBar = (CMFCOutlookBarTabCtrl*) m_wndContextBar.GetUnderlyingWindow(); where wndContextBar is a CMyOutlookBar that is a class I derived from CMFCOutlookBar I also have the 3 CMFCOutlookBarPanes I create within the if below: DWORD dwPaneStyle = AFX_DEFAULT_TOOLBAR_STYLE | CBRS_FLOAT_MULTI; // can float, can autohide, can resize, CAN NOT CLOSE DWORD dwStyle = AFX_CBRS_FLOAT | AFX_CBRS

问题 Is it possible to align the image icon from on a TabControl's ImageList to the right of the text? Right now, the image icon gets put on the left, and the text is to the right of that. I would prefer the text to be on the left, and the icon to the right of that. Is this possible? 回答1: You can not do that unless you Draw the TabPage yourself. To do that you need to set the DrawMode property of the TabControl to OwnerDrawFixed and then handle the DrawItem Event. This is a very simple example to

问题 I have a TImageList which contains transparent icons (32bit, with alpha channel). What I want to do is to save individual icons based on image index as PNG file(s), while preserving alpha channel transparency. Using RAD Studio 2010 so it has TPngImage support, no need for third party libraries. Images are loaded into TImageList from PNG "sprite" image using the method here - Add a png image to a imagelist in runtime using Delphi XE - so the transparency is preserved upon loading. Now I need

问题 I am using this code to add a toolbar to the window with one button having a custom image: HWND hToolbar = CreateWindow(TOOLBARCLASSNAME, NULL,WS_CHILD | TBSTYLE_FLAT|TBSTYLE_AUTOSIZE |TBSTYLE_LIST|CCS_BOTTOM, 0, 0, 0, 0, hwnd, NULL, ghInstance, NULL); //create the toolbar SendMessage(hToolbar, WM_SETFONT, (WPARAM)hFontBold, static_cast<LPARAM>(MAKELONG(TRUE, 0))); //set the font. there cannot be the problem //↓↓↓↓↓**ILC_COLOR32 is specificied here but 32bit bmp is still not showing**// auto

问题 I am using a ListView to load and display thumbnails for image files. The "Name" or key that I'm using for each ListViewItem is the fully-qualified file name. I have also created an ImageList which loads thumbnails of those files using the same key. I've assigned this ImageList as the "SmallImageList" property of the ListView. When I add and remove files, I add and remove them by key from both the ListView.Items and the ImageList.Images collections. All of this works fine when loading many

问题 I have an image list in a list view where previously the only images displayed were pdf's. This meant that that i could handle the double click event effectively to open pdf's. Now i have a different requirement to display some place holder thumbnails for other files in a folder. Is there a way in the listView_DoubleClick event to determine what picture was clicked in the image list, that way i can determine how to handle the event? Thanks for your time 回答1: Determine what item was clicked,