Visual C++ :: Change Item Height In CListBox / CListCtrl
Jul 1, 2014
I need a ownerdraw CListBox where I can change the item height during working with the list. The msdn says that I can specify the height in OnMeasureItem when the listbox will be created (ownerdrawfixed) or when an item will be inserted (ownerdrawvariable).
How to change the height e.g. when I click a button?
I made also some tests with CListCtrl. There I can change the height. But there is only one height for all items. How to set individual heights for the items?
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Mar 4, 2013
I m trying to load a png image by giving the dimension of my own.
CImage Image;
Image.Load (L"D:ImagesPNG_ImagesImage7.png");
But here what happens is that I m not able to give my own dimensions.My code requires constant changing of dimensions of the image.
I tried using libpng.lib in my code.But I dono the keywords for loading the png image after including the lib.
I m using Visual Studio 2010. I m developing in vc++.
How do I load and change the height and width of a png image?
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Feb 7, 2014
I have problems to show a tooltip for a ClistCtrl.
I searched for some solutions in the web.
I found only solution where derived classes are used.
Is it no possible to use tooltips in ClistCtrl without a derivate ClistCtrl?
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Aug 22, 2014
I have a ListCtrl on my dailog. It has a report view. In my case I have selected first row with left click of mouse and entire row is displayed in blue color as selection (as per expected) and when I right click the second row of the listctrl it displays the menu which I have added to it and the selection remains with the first row.(as expected). I have already overridden the ListCtrl class.
I want that on the right click of second row the selection should remain with the first row but this second row also should be displayed with dotted line border.
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Jul 29, 2013
I'm working on an app which monitors user selected data sets from various devices, and I'd like to display the data in a CListCtrl. This would be very convenient, but I'm just a little concerned about (1) just how fast can a CListCtrl be populated, and (2) how can i reduce or eliminate screen flicker. To be specific...
1. There will likely be upwards of 100 rows of data, maybe more (probably 5 or 6 columns), and I'm going to have to refresh it all as quickly as possible, perhaps as fast as once per second. I can play games and only refresh a visible rectangle, but how responsive the control would be, having all that data deleted and refreshed continually?
2. You can see why I'd be worried about screen flicker, and I thought I'd likely have to make two identical overlapped controls so I could double buffer as I would with a graphic animation, switching the visibility of one or another control after its updated to give the appearance of sudden complete updates. BUT... I see there is an extended style you can set called "LVS_EX_DOUBLEBUFFER"
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Jul 8, 2013
I am using a CEdit control as a child in a CListCtrl for purpose of making each column editable. The application is a dialog based app. My problem is... I have overwritten OnOK and OnCancel in the main dialog so the edit control never receives notifications for Escape or Enter whether in OnChar or PreTranslateMessage and I would like to delete the CEdit control after updating the CListCtrl on Enter. What can I do? I have rewritten this code many many times over the past 4 days and nothing is working.
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Jan 15, 2014
i can write a mfc program to make a Thumbnail view with image but can not this when change image with CDialogBox.
Thumbnail view with image(chart) like this:
for (int i=0;i<10;i++) {
CChartContainer *cc = new CChartContainer();
if(cc->m_frmWin->Create(_T(""),
WS_CHILD|WS_VISIBLE|SS_BITMAP, rc,
this,idDyn)) {
}
}
how can i write mfc program to make a Thumbnail view of CDialogBoxs?
do i can use CListCtrl for show multiple DialogBoxs?
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Sep 15, 2014
I have two menu items. When item 1 is disabled, I want item 2 to be disabled as well. In the OnUpdate handler of menu item 1, I have tried to use "t_pMenu = pCmdUI->m_pMenu;", "t_pMenu = pCmdUI->m_pSubMenu;" and "t_pMenu = pCmdUI->m_pParentMenu;" but I always get NULL t_pMenu. How can I achieve this purpose?
Code:
void CDummyView::OnUpdateMenuItem1(CCmdUI* pCmdUI)
{
if(m_bShowMenuItem1) {
pCmdUI->Enable(TRUE);
[Code]....
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Dec 30, 2013
how to adjust the combo box height?
I can adjust the combo box width and also the dropdown list height but not the combo box height.
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Sep 5, 2013
If I get a bitmap from the clipboard with:
hBitmap=(HBITMAP)GetClipboardData(CF_BITMAP);
...how do I get the width and height ? Can I get at the BITMAPINFO ?
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Jan 28, 2014
In a MDI-app with some toolbars and statusbar I created also a controlbar which can be docked to the left side. My problem now: how do I get the exact height of the controlbar?
In CalcDynamicLayout I set the height for the docked state to the height of the mainframe. This value is too big, but it will work basically.
But how can I get the exact height of the controlbar?
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Mar 20, 2014
my problem:I have a text (singleline) and a fix width for the whole text.
How do I find the correct font (height) for this text?
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Aug 6, 2014
I'm using this tutorial for making an owner draw menu. [URL] ...
When I go into the .rc file and remove all of the MENUITEM SEPARATORs all the menu options are squished to the left of the menu as in the screenshot. As long as there is just one MENU SEPARATOR anywhere the menu is fine. If I could make the application without MENU SEPARATORs that would be awesome.
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Mar 27, 2013
If we work with a ListView,and want implement some functions like OnLBDblClick(), we only have a CPoint, but not the column and row that this point suppose. How can i Know that, is there another type of functions that gave us the row and column?
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Jan 29, 2013
How do I get the path for a selected item in a list control?
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Feb 21, 2015
I quite often use an ide written in assembler: RadAsm3[URL] .....
It has a menu item to explore current path. I have used other ide's that have a similar feature but:
The one in RadAsm3 will activate a current Explorer window if the current path is the same as the one requested.
All others open a new Explorer window.
I would like to implement the RadAsm3 approach using Visual Studio 2013 Community c++ as my host compiler for testing.
I tried to get the title of current windows but it appears ShellExecute "explore" does not produce a conventional window???
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Jan 5, 2014
What my purpose here is to use a template to append an item of type T to a node of a ptree (boost)
Code:
template<typename T>
ptree& stick(ptree& tree, char *location, T const & t) {
return tree.add(location, t);
}
Here I can't compile
Code:
struct hdr {
WORD weights_per_vertex;
WORD weights_per_face;
WORD num_bones;
[Code] ....
Doesn't the type of T includes the type struct hdr?
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Jan 16, 2014
May I know how to change a button colour using visual C++ ? Currently using visual studio 2010.
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Mar 6, 2013
I am trying to change the text hue in this gump, i have made most the changes but cant figure out these two errors?
Errors
virtuestatusgump.cs:cs1002: line 75, column 32) ; expected
virtuestatusgump.cs:cs1002: line 75, column 32) identifier expected
Code:
case 1: {
m_Beholder.SendGump String.Format( new VirtueInfoGump( m_Beholder, "Humility", "Humility is perceiving one's place in the world, not according to one's own accomplishments, but according to the intrinsic value of all individuals. One gains Humility through supporting young players.", m_Beholder.Virtues.Humility ) );
break;
}
And here is the full script.
Code:
using System;
using Server;
using Server.Gumps;
using Server.Network;
namespace Server {
public class VirtueStatusGump : Gump
[Code] ....
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Jan 5, 2015
Here is what I did,
Code:
oldHook = ::SetWindowsHookEx(WH_CALLWNDPROCRET, CallWndRetProc, NULL, ::GetCurrentThreadId());
MessageBox(...);
UnhookWindowsHookEx(oldHook);
Then within the callback function CallWndRetProc, I tried to change the background color of the dialog,
Code:
PAINTSTRUCT ps;
HDC hdc = BeginPaint(msg->hwnd, &ps);
::SetBkColor(hdc, RGB(255, 0, 0));
EndPaint(msg->hwnd, &ps);
But it doesn't change the background color of the dialog. I wonder what is the right way to do that?
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May 1, 2014
Visual Studio 2013. C++.
Created a blank, SDI MFC app.
I added a new CMFCToolBar (by hand, didn't use a wizard)
It docks OK. The commands work OK. It renders OK. No problems there.
In the code, attempting to set the window text of this toolbar has no effect. The title bar text is always "Standard". I triple triple triple checked to make sure I don't have any resource ID conflicts. In a small app as this, it was pretty easy to verify this.
The toolbar also does not show in the menu illustrated in the screenshot. (The bottom, undocked toolbar should be titled "My Page Bar" and I think it should show up in the popup menu.)
I know I'm probably missing a simple step somewhere, but I haven't seen it. It looks like its getting mixed up with the Standard Toolbar resource ID somewhere but I could see nothing in the .rc or resource.h files.
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Apr 2, 2013
I know how to change the back color of text in th ListView for all the View, but if I only want to change the back color of one cell i don`t find any way. Is it possible?
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Feb 23, 2015
how to change the mouse tracking icon during runtime. I wish to emulate the Microsoft Paint app behavior with respect, for example, to click on a toolbar button such as the 'Fill With Color' bucket and have the mouse pointer icon change to a little bucket. I wish to do this in an MFC SDI app.
Here's a bit of code that does nothing that I can tell, although it compiles and runs. (m_hIcon2 is a member HANDLE, IDI_FLOODFILL is an existing icon in the app resources). I have come across numerous other examples that do not work and/or will not compile using VS 2010 Win7(64).
Code:
void CMainFrame::SetNewIcon() {
m_hIcon2 = LoadIcon(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDI_FLOODFILL));
SetIcon(m_hIcon2, FALSE);
[Code].....
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Nov 26, 2014
I have a derived CComboBox class, where I tried to change text and background of edit from CComboBox, just like this:
Code:
HBRUSH CMyComboBox::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) {
HBRUSH hbr = CComboBox::OnCtlColor(pDC, pWnd, nCtlColor);
// TODO: Change any attributes of the DC here
//if(CTLCOLOR_EDIT == nCtlColor || CTLCOLOR_MSGBOX == nCtlColor) {
[Code] ......
but is not working if CComboBox has CBS_DROPDOWNLIST style ... is working only for CBS_DROPDOWN style ... why ?
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Feb 20, 2013
I am writing a GUI application with C++ Visual component Libraries and Win32API under windows OS.
As part of this app, I have to change color of the MS Windows button control depending on the external state.
I understood, Win32 will not support changing button control color directly as it will not support for this.
how to change the button color?
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Jun 6, 2013
I have created an exam environment for our schools, it comprises of 3 files; a .kix file that says if they are in the examination group run a .vbs file. The .vbs file kills the explorer.exe task so they don't have any taskbar or desktop shortcuts and then opens a .hta file.
The .hta file is a user interface that has icons for apps like Win Word that executes the application when you click on it. There is also a log off button.
Looking for some code that stops the students from being able to close, minimise and resize the window. Looking for code that can lock this down so they literally can't do anything except click the icons inside the window.
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