User Profile

Collapse

Profile Sidebar

Collapse
DumRat
DumRat
Last Activity: Jun 5 '08, 09:28 AM
Joined: Mar 9 '07
Location:
  •  
  • Time
  • Show
  • Source
Clear All
new posts
  • DumRat
    started a topic BitBlt trouble.
    in C

    BitBlt trouble.

    Hi,
    Can anyone plz help?
    I have the following code for the WM_PAINT event, but it doesn't work. Need to knw why. I'm drawing the scene to the window, but am using an intermediate DC. Then it just shows a white screen, however, if I drop the intermediate DC, it works. I need to know why this fails. Thanks in advance.

    Code:
    case WM_PAINT:
		{
		HBITMAP hBm = (HBITMAP)LoadImageA(NULL, "black.bmp",
    ...
    See more | Go to post
    • DumRat
      replied to size of returning pointer
      in C
      You can't. Return an object instead. Or pass another param by reference
      to the function to get the size. I don't know which is the better of these two methods....
      See more | Go to post

        Leave a comment:

      • DumRat
        started a topic Displaying .bmps on screen + BitBlt problem
        in C

        Displaying .bmps on screen + BitBlt problem

        Hi,
        I want to run an animation(in essence). I want to draw multiple images (possibly .bmps, but I'd like other formats as well.) on to the screen each frame.
        I tried to do this with some C++ code, but it isn't working as it should (As I'm expecting it to I guess.). Can anyone please help me?

        Here's the class definition. Just for the variables.
        Code:
        class CWorld
{
private:
        ...
        See more | Go to post
        • DumRat
          replied to pointer.
          in C
          The whole point of pointers is not to work with the actual data, but work with a proxy for that data. As in the parliamentary system. :)
          But you can access the actual data anytime you need via a pointer to that data.
          See more | Go to post

            Leave a comment:

          • DumRat
            replied to Problem in inserting values in map.
            in C
            macho,
            Do follow the naming conventions, it's a little hard to read your code at first.
            What are the compilation errors?...
            See more | Go to post

              Leave a comment:

            • DumRat
              replied to Problem in choosing data structure
              in C
              But this is the point. Say u have

              {A,B}, {A,C}, etc.

              If u use the first character as the key, you can only have one of these in the map. So u can't use a map like that. The other alternative is to use a multimap - but then, if you had 25 pairs starting with A, you'd have to traverse through that entire 25 elements to find your element - which is inefficient. The best method then is to use both the characters combined...
              See more | Go to post

                Leave a comment:

              • DumRat
                replied to What is wrong with this?
                in C
                Looks like I've been living a lie. Thanks for clearing things out a little. Anyway, I changed the functions a little so that no "Cheat" type of optimizations aren't possible. Even then .NET was faster. Thanks
                See more | Go to post

                  Leave a comment:

                • DumRat
                  replied to What is wrong with this?
                  in C
                  1.The CLR code takes more time to load and initialize - Is this where the preallocation is done?
                  2. If that is the case, how can i actually test the 'real' performances?
                  3. According to you guys, if I were implementing a iterative deepening depth first search using stacks(Say, for 8-puzzle) in both native C++ and CLR, what would be more faster? I always thought that native CPP is faster - if so, by how much?

                  Thanks for...
                  See more | Go to post

                    Leave a comment:

                  • DumRat
                    replied to Problem in choosing data structure
                    in C
                    Suppose you want to check if there's a certain character pair {X,Y} in the map?...
                    See more | Go to post

                      Leave a comment:

                    • DumRat
                      replied to Problem in choosing data structure
                      in C
                      WeaknessForCats << On the above problem I guess your method is the best. But say the set of character pairs are like this :

                      {A,B}, {A,E}, {A,F}, {C,K}, {C, G}, ....

                      Now can a map be used in the way you have indicated?
                      See more | Go to post

                        Leave a comment:

                      • DumRat
                        replied to What is wrong with this?
                        in C
                        Timing?

                        I used timeGetTime() for the console app, you know, with timeBeginPeriod () at the beginning. And used DateTime::Now.T ickCount for CLR...
                        See more | Go to post

                          Leave a comment:

                        • DumRat
                          replied to Problem in choosing data structure
                          in C
                          You can use a vector of maps to store your data. But you have to organize the data into a structure I guess.

                          ex:

                          Code:
                          struct TwoLetters
{
   char first;
   char second;

   //Overload the operator < or > here. There's another way with a function, but I haven't tried it. Let's say that you overloaded the < (less operator).
};
                          Now, you...
                          See more | Go to post

                            Leave a comment:

                          • DumRat
                            started a topic What is wrong with this?
                            in C

                            What is wrong with this?

                            Hi,
                            I'm confounded. Can anyone please help me? Here are two pieces of code.

                            This is C++.NET code.
                            Code:
                            void CLRStackTest()
{
	int i = 0;
	Stack<int> clrstack = gcnew Stack<int>();
	for(i = 0; i < 1000000; i ++)
	{
		clrstack.Push(i);
	}

	while(clrstack.Count > 0)
	{
		clrstack.Pop();
	}
}
                            ...
                            See more | Go to post
                            • DumRat
                              started a topic Managed or unmanaged?
                              in .NET

                              Managed or unmanaged?

                              Hi guys, I'm new to .NET, can anyone tell me if this code is managed or unmanaged(Whate ver that means)?

                              Code:
                              #include <vector>

using namespace System;
using namespace std;

class H
{
private:
	std::vector<int> x;

public:
	void Add(int y)
	{
		x.push_back(y);
	}
};

int main(array<System::String
                              ...
                              See more | Go to post
                              • DumRat
                                replied to Double clicking
                                in C
                                You sure that dbl-clicked highlighted content go to clipboard? Wikipedia says that UNIX does that, but it does not mention anything like that about windows. I do apologize, I have tried, but had little luck finding resources on this topic....
                                See more | Go to post

                                  Leave a comment:

                                • DumRat
                                  replied to Write a function using Recursion to do the following
                                  in C
                                  Have you tried doing it? Post where exactly you are having trouble. No one will write the code for you.
                                  See more | Go to post

                                    Leave a comment:

                                  • DumRat
                                    started a topic Double clicking
                                    in C

                                    Double clicking

                                    Hi,
                                    I have this question which gives me nightmares these days. I need to make an application which can get the highlighted text in any window. Ex: When I run my app, and when I dbl click any word in notepad(say), the highlighted word should be available to my app.
                                    I am talking in Win32 of course. There is one way that I found out. It uses a mouse hook, and on a dbl-click event, send a WM_COPY command to the foreground window,...
                                    See more | Go to post
                                    • DumRat
                                      started a topic How large requests are handled in Apache
                                      in Apache

                                      How large requests are handled in Apache

                                      Hi,
                                      I really have to know how data is received by the Apache server. For example, how is a POST request is handled with a large amount of data? Does the receive function just forward whatever it receives? Is there a limit to the number of bytes ap_read_request function (I hope that I am right in saying that this is the function that is responsible for reading in a request.) can read, if there is, how does the server handle a request...
                                      See more | Go to post
                                      • DumRat
                                        replied to Genetic algorithm Problem
                                        in C
                                        Can anyone help please?
                                        See more | Go to post

                                          Leave a comment:

                                        • DumRat
                                          replied to rand() and threads
                                          in C
                                          So, I'll try my hand at a rand function of my own then. Thanks.
                                          See more | Go to post

                                            Leave a comment:

                                          No activity results to display
                                          Show More
                                          Working...