I'm still at the very beginning of learning WPF and there are still countless things i don't fully understand. For instance, as I can see in my WPF project, there isn't an event that would fire when the Background property of some control is changed. Or am I just missing it? If i'm not blind after all, and it really doesn't exist, is there any way i could get notified when the Background color of some control is changed?
View 5 Repliescout << "this is a sample text " << endl << endl;
int t;
t = endl+endl; ?
looking for a single endl define to end line twice.
I am not 100% confident that changing the existing interfaces will not be error-prone. Should I discard the new changes for ease of use or Adapt to new changes but having a higher risk of introducing new bugs?
old
Code:
///ContactResultCallback is used to report contact points
structContactResultCallback {
short intm_collisionFilterGroup;
short intm_collisionFilterMask;
[Code] ....
New:
Code:
///ContactResultCallback is used to report contact points
structContactResultCallback {
short intm_collisionFilterGroup;
short intm_collisionFilterMask;
[Code] ....
I am working on this project where I need to see if data in a struct has changed and if so I need to do something. With that being said, is there a way to check to see if data in a struct has changed. My first approach was to make a copy of the struct and compare the original struct with the copy but I was having problems with the operator==.
View 2 Replies View RelatedI am trying to modify a PerformanceCounter I have created in C#. But it doesn't seem to be that it is being changed. This counter needs actualy to be a flag : 0 or 1.
I took the following code from the web. It created the collectors category along with the counters well. But the RawValue always shows 0!
I am working on Win7/64.
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace PerformanceCounterSample
[Code] ....
Im trying to create a Personchanged EventHandler..
I have this:
public class Pessoa {
private int _idade;
private bool _isDeleted;
public Pessoa() {
// TODO: Complete member initialization
[Code] ....
And I have a error: Delegate EventHandler does not take 0 arguments..
I have a Gridview ,in that one of the Column is DropDownList .I have 10 Records in my Grid and my DropDown Values are like this 1,2,3....10.This is the format to store my DropDown values ,if i delete 4th Row ,then my DropDown Values are Changed like 1,2,3,4....9.This is my task ,but i'm getting this format 1,2,3,--,5...10.
View 1 Replies View RelatedOkay, I have a form and I have a tab control thing. On the second tab, I have a button which is supposed to turn the background green.
So, I have this:
#pragma endregion
private: System::Void greenButton_Click(System::Object^ sender, System::EventArgs^ e) {
this ->BackColor = System::Drawing::Color::Green;
But clearly that just turns the FORMS background green. How can I change the TAB background to green.
I am working on this project where I need to update an edit box every couple of seconds with a status and based on the status I need to change the color of the background to a particular color.I am able to update the edit box with the status but is clueless on how to update background color.I have read some info on line about this but is confused.This edit box is on a tab in a dialog. Also, on this tab is a Groupable List Ctrl.
View 2 Replies View RelatedI'm creating a simple game with my friend that runs in the Terminal/Command Prompt window, but I would like to know how to change the color of the entire window via C++. I'm on a Mac, but my friend is on a Windows, so I need to a solution that is portable, if possible.
I've tried using a printf statement to change the color, but it only changes the background color of the text being printed.
I am new to programming . My task is to change the background of the app so that every time I open the app I get a different background image and every minute the background image changes. I am a complete noob and I am trying to do this for almost 36 hours now. I am getting really depressed right now. Every time I am trying to write a code, there's an error.
View 5 Replies View RelatedI was trying to change the text and background color to :red blue
Is there a way to do this? is there a certain function? ...
I want to have an animated background for my games logon screen. However sprite sheets only support an image size of 2048x2048. So my question is sense the background is 640,480. Would it be logical to use a video as the background and draw GUI components over the drawn video frame?
View 4 Replies View Relatedi created a windows service that will run another program. but the program i want to run has a gui and i don't want the gui to be visible, i just want the program to run in the background.
But i have to do it without editing the gui program
here's my code:
Code:
TCHAR* path = L"C:Myfile est.exe";
STARTUPINFO info = {0};
PROCESS_INFORMATION processInfo;
ZeroMemory( &info, sizeof(info) );
info.cb = sizeof(info);
[code]....
i tested this code with notepad and it runs notepad in the background without displaying the window but when i try run my program it doesn't work. i don't know why its works for one program and not the other..
I am posting this simplified piece of code that is a bit confusing for me. There are two functions that I call. One shows the expected results but the result of the other one rather puzzles me.
//#define defineVecTyp Vec3f
#define defineVecTyp float
template <typename vecTyp>
vecTyp buildLaplacianPyramid(cv::Mat inputmat) {
vecTyp lapPyr;
[Code].....
Calling the function sum1 does not change the values stored in the variables val1 and val2. The output of the program is as follows:
val1= 1 ## val2= 10 // before the call of function sum1
val1= 1 ## val2= 10 // after the call of function sum1
sumOfVals= 22
This is quite obvious and as expected and I just pasted this piece of code as an example for better clarification.
However, if I call the function buildLaplacianPyramid and apply a function for Gaussian Blurring, this also effects the cv::Mat passed to the function. The line imshow("M1, after buildLaplacianPyramid",M1); therefore shows an image that is blurred. Since I am not passing a pointer to the cv::Mat I do not understand why this should be happening. I was assuming that there would be a copy of the cv::Mat M1 to be used within the function. Therefore I was expecting the cv::Mat M1 to retain its original value. I was expecting that all changes applied to cv::Mat inputmat within the function would not have any influence on the cv::Mat M1. Just like in my other example with the sum.
I use turbo c++ 3.0
How to set the background color using the function setbkcolor() in graphics.h
will i need to run the exe file in full screen if i use this function?
I am working on a 2D side scroller game. Where a ball is moving continuously towards right . I used a camera to follow the ball as soon as ball reaches the center of screen. I created a horizontal line to look like the surface on which the ball is rolling.
line runs from x=0 to x=800 (i.e screen width)
NOTE: (0,0) coordinate is at top left corner of display.
Problem: My display is 800 x 400 . Camera follows the ball, but soon the ball crosses x=800 and starts moving in black background. I want that line surface to stay there instead of going out of bound.
Additionally! I generated obstacles from x=800 which also move out of bound along with my line.
What should be done here? This is just my first c++ game project, so i might be skipping things that can solve the issue.
[Update] these screenshots manage to show, what the real problem is: [URL]
Earlier 4-5 years back, When I started learning C++ I used textcolor(),delay() function to change the textcolour and delay the O/P respectively. But its not working in Code Blocks 13.12. Is there any other standard way to color and delay the text.
View 3 Replies View RelatedHere is my code:
#include <graphics.h>
#include <stdio.h>
#include <conio.h>
int main() {
int gdriver = DETECT, gmode, errorcode,i;
initgraph(&gdriver, &gmode, "c:cgi");
errorcode = graphresult();
[Code] ....
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?
ON_WM_CTLCOLOR(...) works for all the other controls but not the tab control.
Code:
void CEasyWebStoreUploaderDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Control(pDX, IDC_TAB_CTRL, m_tabCtrl);
DDX_Text(pDX, IDC_EDIT_STATUS, m_strServerStatus);
DDX_Text(pDX, IDC_EDIT_UPLOAD_RESULTS, m_strUploadResults);
}
I am saving my data in Excel File Format.
I am using CDataBase class and its methods like OpenEx ,ExecuteSQL etc. The program is working fine.
Now I need to change back-ground color of some data base records.
How to do this in MFC ?
I need to make a program which can play a audio file as background while executing other operations .
View 4 Replies View RelatedI made 2 forms and Form2 has buttons with images like planets and game wallpapers etc. When I write the code for button:
this.BackgroundImage = new Bitmap(Properties.Resources._8_8008_by_amplifier404);
this.BackgroundImageLayout = ImageLayout.Stretch;
// where _8_8008_by_amplifier404 is name of the image located in resources
It only changes background in form which has those buttons as long the form is used. Once I go back to form1 it's changed to null. How to set background in all forms with a button click which will be there until another button with an image is clicked.
Attached Images
two.jpg (69.7 KB)
three.jpg (76.7 KB)
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 ?
No I definitely used Visual Studio Command Prompt
c:Program FilesMicrosoft Visual Studio 9.0VC
un_process_from_service>make.bat