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Actually SendMessage(WM_SETCURSOR, 0, 0 or use default) before zooming does the trick.
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Hi Everybody
I have a SDI project. I have created some dynamics ComboBoxes in my toolbar by ".Create" in my CMainFrame Class. My ComboBoxes are working properly in CMainFrame but I want to set some of my variables in CMyView class by void CMainFrame::OnSelchange_My_Dynamics_Combo_1(). I did my best but I was not successful to send/set data to/at CMyView class.
I am beginner in MFC, Please guide me.
Best Regards
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Member 15033704 wrote: ...I was not successful to send/set data to/at CMyView class.
What exactly is this supposed to mean?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Dear David
I meant: I have some public variables in CMyView class.These variables must be updated from INSIDE the CMyMainFrame class. How can I get access from CMyMainFrame to public variables in CMyView class?
In fact,how can I update public variables I have in CMyView class from CMyMainFrame class?
Best Regads
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Member 15033704 wrote: How can I get access from CMyMainFrame to public variables in CMyView class?
Have you tried calling GetActiveView()?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Yes, dear friend
I write the following code inside MyCMainFrame file :
MyCView*pView = static_cast<mycview*> (GetActiveWindow());
then when I include MyCView.h file inside MyCMainFrame file to use GetActiveView(), then I get CDocument ERROR!!!
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Your CMyView object should be a member of the CMainFrame, so you just need to add a public method to CMyView that does what you want.
modified 1-Jan-21 6:55am.
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Dear Friend
I did it,Because it seemed very easy, but then I get CDocument ERROR!
After adding #include "CMyView.h" into CMyMainFrame, I get CDocument ERROR!
I searched a lot on the internet, all say use GetActiveView() but it does not work!
Best Regards
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Sorry, we cannot guess what you are doing. You need to show the code that that you are running, and explain exactly what error(s) you see and where it happens.
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Dear friend
I write the following code inside MyCMainFrame.cpp file :
MyCView*pView = static_cast<mycview*> (GetActiveWindow());
pView->m_CMyView_Pulic_Variable;
To get access to public variables inside CMyview class.
But when I include MyCView.h file inside MyCMainFrame file to use GetActiveView(), then I get CDocument ERROR!
In fact, I just want to change a public variable inside CMyView class from MyCMainFrame.
How can I get access to CMyView class public variables, from MyCMainFrame?
Best Regards
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Why are you using GetActiveWindow rather than GetActiveView? And what is the exact text of the error you receive and where does it occur?
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Dear Richard
Firstly "HAPPY NEW YEAR"
Many thanks for your help, I was engaged with the CMyDoc error, finally I found it, simply it was redefinition of CMyDoc header in 2 different classes that I never guessed such mistake.
Best Regards
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Glad you found it. Happy New Year (as much as it can be) to you also.
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Nobita and String | Basics of String Manipulation & Algorithms Practice Problems | HackerEarth[^]
this is the question. my code:
#include<bits/stdc++.h>
using namespace std;
int main()
{
int t;
cin>>t;
std::string s[t];
for(int i=0;i<=t-1;i++)
{
string st;
getline(cin,st);
int l=(int)st.length();
string s2="",s3="";
for(int i=0;i<=l;i++)
{
if(st[i]==' '||st[i]=='\0')
{
s3=s2+" "+s3;
s2.clear();
}
else
{
s2+=st[i];
}
}
s[i]=s3;
}
for(int i=0;i<=t-1;i++)
cout<<s[i]<<endl;
return 0;
}
the error message is saying " your program doesnt print anything. can anyone help me find whats wrong?
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for(int i=0;i<=l;i++)
Try changing to
for(int i=0;i<l;i++)
You're index is going out of bounds on the st variable 'st[i]', when i is equal to l.
Also, having nested for loops with the same index variable name is tough to read.
"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment
"Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst
"I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle
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After the following line
cin>>t;
there are still charactes in the input buffer, hence, the next call to getline gets them.
A commont way to deal with this issue is using cin.ignore (see, for instance What is the use of cin.ignore() in C++?[^]).
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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Have you tried stepping through the code using a debugger? Doing so will let you know in a hurry what is wrong.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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In addition to other answers.
Advice: Learn to indent properly your code, it show its structure and it helps reading and understanding. It also helps spotting structures mistakes.
#include<bits/stdc++.h>
using namespace std;
int main()
{
int t;
cin>>t;
std::string s[t];
for(int i=0;i<=t-1;i++)
{
string st;
getline(cin,st);
int l=(int)st.length();
string s2="",s3="";
for(int i=0;i<=l;i++)
{
if(st[i]==' '||st[i]=='\0')
{
s3=s2+" "+s3;
s2.clear();
}
else
{
s2+=st[i];
}
}
s[i]=s3;
}
for(int i=0;i<=t-1;i++)
cout<<s[i]<<endl;
return 0;
}
Indentation style - Wikipedia[^]
Professional programmer's editors have this feature and others ones such as parenthesis matching and syntax highlighting.
Notepad++ Home[^]
ultraedit[^]
Enabling Open Innovation & Collaboration | The Eclipse Foundation[^]
Patrice
“Everything should be made as simple as possible, but no simpler.” Albert Einstein
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Hello,
I am trying to draw an image (2nd image) over the other image (existing image file - 1st image) using gdi+ bitmap and graphics and then saving (overwriting) the same 1st image file. But saving is not getting done, when i use GetLasError(), it shows error message,
"The process cannot access the file because it is being used by another process"
Here is the code what i am doing.
<pre>Gdiplus::Bitmap *gpBitmap = new Gdiplus::Bitmap(mImagePath1); Gdiplus::Graphics *gr = Gdiplus::Graphics::FromImage(gpBitmap);
Gdiplus::Bitmap img(mImagePath2); Gdiplus::Bitmap* pThumbnail = static_cast<Gdiplus::Bitmap*>(img.GetThumbnailImage(32, 32, NULL, NULL));
gr->DrawImage(pThumbnail, newWpos, newHpos);
Gdiplus::Status stat = gpBitmap->Save(mImagePath1, pClsid);
I tried making copy also, but same issue.
please suggest.
Regards,
Gopi.
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Your file mImagePath1 is still open to the Bitmap object. You should use a different path to save the new image.
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Thank you Richard.
This helps me to solve my issue.
Regards,
Gopi.
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In Visual C++ 2012 I have written this code:
strstream& operator>>(strstream& Stream,CComponent* pCmp){
..code
}
std::strstream read_file((char*)filbuf,file_size,ios_base::out);
pComp=new CComponent;
read_file>>pComp;
This works perfectly. But when I run it on my newly installed Visual C++ 2019 it compiles all right, but the output is wrong.
I see that std::strstream is deprecated, but it should still function. If I try to put std::stringstream instead, it will not accept the >> operator.
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Haakon S. wrote: it compiles all right, but the output is wrong.
You need to explain what that means.
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