Visual C++ :: Dynamic Icons On CMFC Ribbon StatusBar Pane
May 6, 2013
The goal is to change the status bar (CMFCRibbonStatusBar) icons based on some events. (The old CMFCStatusBar class had the SetPaneIcon() member that easily solves the problem.)
The "improved" CMFCRibbonStatusBarPane has no members to set the icon, other then the constructor. Being a subclass of CMFCRibbonButton, it has SetImageIndex() that sets the icon index in the image list. The MS online support does not mention how and where to set that "list of images". My understanding is that the list belongs to the Button's parent; in this case it is the CMFCRibbonStatusBar, which has no methods to set any image list. How and where am I supposed to set that list of images for the status bar?
Second related question: I have tried to set the pane icon with the CMFCRibbonStatusBarPane() constructor by loading it from an icon resource. The icon appears shortly and then it is replaced by a gray patch. (for tests I also used one of the icons given by the MFC wizard, with the same result)
The code is:
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) {
..........
if (!m_wndStatusBar.Create(this)) {
TRACE0("Failed to create status bar
");
[Code] ....
This code was placed within a program created by the MFC wizard that does nothing else. I absolutely do not "touch" the status bar after it is created here in CMainFrame::OnCreate().
Apparently the icon is "erased" after OnCreate() exits. Where, how? I have made HICON icon; a member of my CMainFrame class, with the same result.
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.
I have a dialog window with a CTabCtrl. The following code is successful in showing an icon along with the text name on each of 16 tabs. The icons are 16x16 pixel squares, 4-bit, that I made with Visual Studio 2008's resource editor.
The icons to have transparent pixels (the first pixel of the color map), so that I can "shape" them to be circles, etc., instead of squares.
However, the transparency works ONLY IF I use ILC_COLOR8 instead of ILC_COLOR4, and use LR_LOADMAP3DCOLORS. (Neither of these are documented as being related.) If I don't have LR_LOADMAP3DCOLORS, or if I use ILC_COLOR4, the "transparent" parts of the icon are colored white instead.
My code now works....
// Configure the Tab control. CTabCtrl* ptab = (CTabCtrl*) GetDlgItem( IDC_TAB1 ); static CImageList* pil = NULL; if ( ! pil ) { pil = new CImageList;
How can i change or add a cell to an array without knowing its length ? (I mean that I shouldn't know the length I need to make the length dynamic so i can add a cell)we just learned Dynamic assignment(I hope this is the correct name) and Pointers.
We're designing a new software and we want it to be customizable without code. That, for us, mean we can change the software behaviour without re-writing code. All will be developed using C and .NET.
One of our goals is to have what we are calling "dynamic tables". This means that these database tables may have different fields depending on the customization. We got to know it using high-level ERPs like SAP or CRM's system like VTIGER or even SalesForce. Let me give an example:
CUSTOMER TABLE:
FIELDS: ID, NAME, ADDRESS, PHONE.
This would be the standard Customer Table.
Now, a new customer needs to add FINANCE SCORE and RANKING to the database. We them would like to go to our application (not the database itself) and adding these new fields. After that, all of my input forms and reports would start to show and process these new fields.
We want to generate dynamic resource file for VC++ where the data will come from database (Oracle).
For an example, When a user log in the system, at that time if User is an English User, then some data in english language needs to be loaded in vc++ resource file. If the user is French then French data will be loaded into the resource file.
Right now all the data are hard-coded in the resource file but we want to load it dynamically from database, based on the login-user language.
How to do this dynamic implementation as I am not able to find any such concept in google.
I've created a dialog based MFC app which input from user to create that many dynamic controls(Used checkbox to be created dynamically).
After user input that many checkboxes controls are created but if try to click again then not able to delete previous controls and again new no. of controls.
Code snippet to add controls on user input.
RECT rctA; rctA.top = 51; rctA.bottom = 80; CString temp; m_Edit.GetWindowText(temp); int noOfControls = _tstoi(temp);
I'm writing a program in which I have to use a matrix to represent a file in code. because it's a file, the size of the matrix is undefined, and therefore the matrix has to be dynamic. I found out that my compiler doesn't like dynamic multidimensional arrays, so I was thinking of this matrix as a dynamic (monodimensional) array of other dynamic (monodimensional) arrays. My program (and thus this example) uses unsigned chars.
i'm implementing a playerclass for a game.. in the game there are multiple player types, weapons ect.. i just wanted to turn my players weapons into a dynamically allocated c_str. once i added my: Destructor, Copy Constructor and Overloaded Assignment Operator. My initial values became corrupted and i cannot fix them.
I just wondering if there's a way in C++ to get classes dynamically which have the same base class? I mean, instead of creating switch statement to create multiple classes, I would like to use a single line to create any of these classes.
//Instead of: switch(class_type) { case type_1: SubClass_1 obj = new SubClass_1();
I am having troubles with dynamic arrays and pointers. All the errors are of that kind. I think when I am assigning malloc to an array we assign to its address.
Code: /*Create an array of genes of the large matrix*/ gene_t gene,gene1,gene2; gene=malloc(INITIAL*sizeof(gene2)); Code: while(...) { if (gene_num==current_size){
Code: Int** d = malloc( ROWS * sizeof(int*)); for (i = 0; i < ROWS; i++) d[i] = malloc(COLS * sizeof(int)); fx(d);
My question is, in a function declaration, why do I not have to specify the number of columns. How is this different than when I pass a static 2D array to a function, in which I must declare the function parameter with the number of columns.
Code: void fx(int d[][COLS]); VS. Code: void fx(int **d);
In our homework assignment it states to, "write a set of dynamic linked lists" and so on. Now, the problem I'm confusing myself is at the storage inside of each node. To my understanding, each node contains the prev and next nodes, but also a pointer to the data, in this case being a string. He has asked us to manage these strings as rows of chars such as
char[0] = c // first node being addressed here char[1] = a char[2] = t char[3] = char[4] = d // second node starting here char[5] = o char[6] = g char[7] =
I have written my code where each node is holding a string, not separated as shown above... my question is to how you can build your doubly linked list where each node is being address a set of chars.
I have declared a global variable as pointer. The program performs certain number of iterations. After every iteration, the size of memory required for the pointer changes and this pointer variable is to be accessed by different functions. Now, here is my doubt:If I allocate the memory for this global variable in a function, will the contents of the memory be lost once I exit that function. In my opinion, it should not be the case as the dynamic memory allocation takes place in "heap" and should not be affected by the call of functions.
So, this is the code i have problem with, as far as i can see, function form actually does the same thing that printf does.It probably puts all of the arguments sent to the function together into one string.
After i set the value in the first structure owners name, i set the cats name equal to it. but when i change the value in the first structure it doesn't change the value in the second structure.
So i need the dogs owners name to be equal to the cats owners name
So if i change the value of the dogs owner it also changes the value of the cats owner.
I am trying to come up with a way to make use of a "multilevel dynamic" container. I am parsing a file to grab some pieces of data. Lets say the first field of data I find I push into an array. At the same time lets I wish to create 2 cascaded sublevels. So an element in Modules is a pointer to the Types vector associated with that module and each element in Types is a pointer to a vector of Data. This concept should be similar to memory paging.
Obviously this becomes very hair quickly so it is obvious that I need to dynamically create and destroy vectors (if I do it this way). Should I just create pointers using the new operator?
Here is some of my code if it is even worthwhile to read:
If you take the first one, "max_logvar" is a module so everything between < and > is associated with that module.
symb is unimportant for now.
then "proterm" is a "module type" so then module now needs a module type container but I may have more than one of those.
so then I break it down by "Input" and "Output" where each of those can have the integer values (just in an array where each position will be set) that are in the fields to the right.
I am new to C++ language and I am still learning.I'm doing basic stuff to better understand dynamic memory. I was wondering why I keep getting memory issues.*/
My purpose is to fill a matrix with random numbers. As you can see in the code, I defined a matrix called sim_matrix (which should be filled), but the dimensions of such matrix is given by the parameters that we introduce in the constructor. Because we don't know the size of such matrix until we give these parameters through the constructor. I'd like to know how to declare such matrix, or how to modify the size,...
The header of my file MonteCarlo.h is:
/* MonteCarlo.h */
#ifndef MONTECARLO_H_ #define MONTECARLO_H_ using namespace std; class MonteCarlo { public: MonteCarlo(int n_paths, int n_simulations);
All entities need to be stored in the dynamic memory. I managed to force this by making the constructor private and by adding a static method which dynamically creates an object and returns a pointer. But it is most likely that the user will want to make them dynamically and we still have the following problem.
entity* player = entity::create(); (*player).setPosition(something); (*player).act(); (*player).draw();
You get the point, having to dereference the pointer before each call becomes painful. So I thought about this... Instead of returning a pointer, I can return a reference. Then the code is much cleaner.
{ entity& test = entity::create();
// do stuff... test.act(); // more stuff...
test.destroy(); // deletes the dynamic object }
I put this code between brackets. That's because we must make sure the reference test doesn't exist after destroy is called, because destroy() makes it invalid. This is fully functional and won't cause any problem as long as the user doesn't forget to never call any method on a destroyed entity. But it's evil code. Would you risk it, or is there another way around?
I remember in C++, when a dynamic array is allocated, the size of this array is stored right before the array in memory. Therefore compiler knows exactly how long, when this array is deleted.
Do all compilers store the size this way? Is it a safe method to get the size of a dynamic array?
Here is a example code, it works fine on Visual Studio 2012.
#include <iostream> using namespace std; class dummy { public: dummy() { cout<<"dummy created"<<endl;
