|
When i compiled my program, the following error occur:
PlaySound error LNK2019: unresolved external symbol "public: __thiscall CCapture::CCapture(void)" (??0CCapture@@QAE@XZ) referenced in function _main
CCapture is just an object and I create the CCapture object in another .cpp.
I have already link the two .cpp files and included the .h files. However, the problem still exist.
How can I solve this problem?
Thank you!
|
|
|
|
|
Sobero wrote:
How can I solve this problem?
You defined a constructor in the class defintion, but you haven't written the body of it - CCapture::CCapture()
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
|
|
|
|
|
I am migrating my VC6.0 code to VC .NET now. But I got some link errors because some export functions I used have CString as parameters. Is there any ways to get around of this, like any project settings? Thank you.
will
|
|
|
|
|
I am getting CString problem also. I am getting Assertion Failed.
|
|
|
|
|
I am trying to implement the overlay blend mode as in photoshop. I have already implemented some blend modes(screen , multiply etc). Ovrlay blend mode is a combination of Multiply and screen blends depending on the base color this i found out. But when should i apply multiply and when should i apply Screen. What are the color values of the base, Can Anybody give me the info.
Thanks, Vikash
|
|
|
|
|
have a look at the filters section in the SVG spec - iirc this is described quite well and may be of help. http://www.w3.org/Graphics/SVG/
|
|
|
|
|
Thanks I will try that but i am open to any more suggestions
|
|
|
|
|
I just received a call to debug a TAPI problem.
The company that created the control no longer exists.
Problem: When the VB App finished making a call and downloading via modem, it closes the program without giving a reason. This only occurs on machines running Win2000 or WinXP. The program was origanaly written and tested on Win2000 (also tested on Win3.1, Win95 and Win98).
Could this have something to do with Windows security updates?
Any ideas would be helpfull.
NOTE: I already left this same message on the VB forum.
INTP
|
|
|
|
|
Try this in VC++
double dValue = 10.52 - 10.0;
Normally dValue should be 0.52 but the result is always: 0.51999999999999957
Why ?????
it cause me a lot of trouble, any idea on how to fix it ?
|
|
|
|
|
because of precision computing.
it's standard "behaviour" when representing floating point numbers in binary.
Maximilien Lincourt
Your Head A Splode - Strong Bad
|
|
|
|
|
Try this using pen and paper. It's called Long Division. Divide the value 1 by the value 3. When you get the exact answer and there is no remainder, please come back. 
If you do some Google searching for floating point approximations, you'll probably find your answer. Binary representations of a rational number requires approximations just as base ten representations of rational numbers requires approximations. Most times these approximations are very small and have only a minor or neglible effect on calculations, but as you are probably discovering, there are times that the effect can be appreciable.
Chris Meech
I am Canadian. [heard in a local bar]
Gently arching his fishing rod back he moves the tip forward in a gentle arch releasing the line.... kersplunk [Doug Goulden]
|
|
|
|
|
It's inevitable. It is impossible to represent some real values exactly in floating-point format.
The best way to handle rounding errors like this is to decide what precision is necessary for your application and round values when necessary. Keep the values 'raw' as long as possible and round before displaying the result.
for example:
double round(double val, int ndp)
{
double mult = pow(10, ndp);
val *= mult;
return ((val - floor(val) < 0.5) ? floor(val) : ceil(val)) / mult;
}
...
double dValue = round(10.52 - 10.0, 4);
The opinions expressed in this communication do not necessarily represent those of the author (especially if you find them impolite, discourteous or inflammatory).
|
|
|
|
|
Thanks for your help.
With this simple Round function I was able to fix my problems.
|
|
|
|
|
why don't you just use int? or short int?
IM PROUD TO BE A GMAIL;
|
|
|
|
|
|
What do i need to use this control: click here
Thanks!
|
|
|
|
|
A mouse.
The opinions expressed in this communication do not necessarily represent those of the author (especially if you find them impolite, discourteous or inflammatory).
|
|
|
|
|
|
LOL. When I saw the question, I was wondering about a smartass reply, but could come up with one. Yours is pretty good.
Chris Meech
I am Canadian. [heard in a local bar]
Gently arching his fishing rod back he moves the tip forward in a gentle arch releasing the line.... kersplunk [Doug Goulden]
|
|
|
|
|
You have asked a question that is just so vague, it's impossible to answer. How have you tried to use it, whatever it is.
Chris Meech
I am Canadian. [heard in a local bar]
Gently arching his fishing rod back he moves the tip forward in a gentle arch releasing the line.... kersplunk [Doug Goulden]
|
|
|
|
|
What is the name of that control ? It is available through some MFC class or something ? I want to use that control but don't where to to start.
Thanks
|
|
|
|
|
Try using Spy++. That might help. What applications use it?
Chris Meech
I am Canadian. [heard in a local bar]
Gently arching his fishing rod back he moves the tip forward in a gentle arch releasing the line.... kersplunk [Doug Goulden]
|
|
|
|
|
I've seen it in visual studio, unreal editors and a couple more.
Spy++ gave me this class: WindowsForms10.Window.8.App1
I don't know what the hell is this.
|
|
|
|
|
PutaQuePariu wrote:
I've seen it in visual studio
Since I'm still using version 6, and don't see it, I'll assume it a new beast in 7. 
I'm with Max on this one though. From the small pic you linked, it looks like a Tree Control that is ownerdrawn. Which basically means you have to 'reinvent' all that the owner draw implements.
Chris Meech
I am Canadian. [heard in a local bar]
Gently arching his fishing rod back he moves the tip forward in a gentle arch releasing the line.... kersplunk [Doug Goulden]
|
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
