Visual C++ :: How To Append Two Bitmaps
Nov 28, 2013Is there a way to append two bitmaps, one of them in a top of another one ? I mean arrange them like tile horizontally.
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Visual C++ :: Direct2D - Auto-resizing Bitmaps
Feb 9, 2013Apparently the default behavior with Direct2D when rendering is to scale everything I render based on the size of the render target/window. How can I prevent this? I want to decide for myself when to scale the image, regardless of the size of the window.
View 1 Replies View RelatedVisual C++ :: Display Anti-aliased PARGB Bitmaps In A Menu
Dec 2, 2012I'm attaching a project that demonstrates the issue. I need to display a context menu with anti-aliased bitmaps. I wrote my own method to convert an icon into a bitmap (see the CreatePARGBBitmapFromIcon() method) but the resulting bitmap seems to lose all anti-aliasing when displayed in a menu. What is interesting is that the same bitmap is displayed without any issues in a CStatic 'stPic1' control (the one in the middle.) The visual artifact also seems to be different on different OS. Take a look at the screenshots attached.
View 1 Replies View RelatedVisual C++ :: Unable To Append Data To CFile Using FILE
Sep 26, 2012I'm trying to append data to a CFile using FILE* But when execute the application, it always give error saying "No such file or directory". I can actually see the file created but it just keep giving error "No such file or directory".
Is the file being lock or the file just created so it can not be find by fstream(FILE*)? or the file mode is wrong?
Below is the code:
[QUOTE]
void SaveDocument(CString strFile) {
CFile file;
if( !file.Open(strFile, CFile::modeCreate | CFile::modeWrite | CFile::shareDenyNone)) {
CArchive ar(&file, CArchive::store);
// save now.
MyClass.Serialise(ar);
[Code]...
Attached is the printscreen of the FILE* pointer. the pointer is evaluated as bad pointer. Why the FILE* pointer not able point to the file being created?
Visual C++ :: Using Template To Append Item Of Type T To Node Of Ptree
Jan 5, 2014What my purpose here is to use a template to append an item of type T to a node of a ptree (boost)
Code:
template<typename T>
ptree& stick(ptree& tree, char *location, T const & t) {
return tree.add(location, t);
}
Here I can't compile
Code:
struct hdr {
WORD weights_per_vertex;
WORD weights_per_face;
WORD num_bones;
[Code] ....
Doesn't the type of T includes the type struct hdr?
C :: Append Integer To Char As A Count
Apr 15, 2014I am trying to keep a count on a variable name stored within a structure as char*'s. They are of the same field and I do not know how many there will be so I would like to keep a standard name and append the count.
So say I have a variable name such as "desk", but as I have many of these said desks so I would like to call them "desk1", "desk2", "desk3" and so forth. Any recommendations on how I could do this?
Also since this is somewhat relevant is there an easy way to convert from an integer to a string, something that would work like atoi() in reverse? I wouldn't mind writing a method to do so myself but haven't a clue as to how.
C :: Program To Append Text To TXT File
Mar 16, 2013I am trying to understand how to append some code to a text file. I have run a simple program like the one below. Basically it opens a text file and then it appends the string aaaaaaaaaa
Code:
#include <stdio.h>
#include <io.h>
#include <stdlib.h>
char s[10] = {"
aaaaaaaaaa"};
[Code] .....
Now that I know how to append the above string, I now would like to extend the experiment to append the following snipped of code in my test.txt file:
Code:
<Placemark>
<name>12:01</name>
<Snippet maxLines="0"></Snippet>
<description> </description>
[Code] ....
How do I go about doing this? The problem I am experiencing is that all the / and " characters in the above snippet of code seems to get the C compiler confused. One thought I had was to create a string like the one below but as I mentioned, the number 0 in the code is surrpunded by " " and this confuses the compiler:
Code:
char s[250] = {"<Placemark>
<name>12:01</name>
<Snippet maxLines="0"></Snippet>
[Code] ....
C++ :: Append Node To A Linked List
Jan 27, 2013I have a function that append node to a linked list like this:
struct ListNode{
int value;
struct ListNode* next;
};
void appendNode(struct ListNode* head, int num){
[code] ....
when I use it, the head in main() does not change its address and it's still pointing to NULL. Why??
C/C++ :: How To Append Txt File In Code Blocks
May 14, 2014I've been using code::blocks to work on text files through fstream. But i cannot make it append using my code.
Here's my code:
#include <iostream>
#include <fstream>
using namespace std;
int main() {
fstream dataFile;
dataFile.open("demofile.txt", ios::out);
[Code] ....
C++ :: Append Suffix To String With Pointer Arithmetic
Mar 1, 2013Dynamic memory allocation and pointer arithmetic with char arrays.
The class was given to me in a very basic skeleton form with prototypes but no implementations, along with a test function to test my implementations. I CAN NOT use any C String functions in this assignment.
The part of the program which is troubling is the append function, which just appends a parameter string215 object to the end of the current string215 object.
// Add a suffix to the end of this string. Allocates and frees memory.
void string215::append(const string215 &suffix) {
char *output = new char[str_len(data)+suffix.length()+1];
for(int x = 0; x < str_len(data); x++) {
*output = *data;
[Code]...
This portion of the code is tested in the 13th test of the test function as shown here:
string215 str("testing");
...
// Test 13: test that append works in a simple case.
curr_test++;
string215 suffix("123");
str.append(suffix);
if (strcmp(str.c_str(), "testing123") != 0) {
cerr << "Test " << curr_test << " failed." << endl;
failed++;
}
Here is the description of the append class: Add the suffix to the end of this string. Allocates a new, larger, array; copies the old contents, followed by the suffix, to the new array; then frees the old array and updates the pointer to the new one.
My program aborts at the very end of the append function execution with the error message:
Debug Assertion Failed!
Program: [Source path]dbgdel.cpp
Line: 52
Expression: _BLOCK_TYPE_IS_VALID(pHead->nBlockUse)
...
Abort || Retry || Ignore
Here's a pastebin of the .cpp and .h file for this program
string215.cpp: [URL] ....
string215.h: [URL] .....
C/C++ :: Print Output With Append Data In TXT File
Oct 22, 2014I was recently introduced to the fstream header file. I want to know is their a easy way to print an output with append data in a .txt file.
And secondly I am also having an error with my header file. It says error: cannot open source file "fstring" when I hover my mouse over "#Include<fstring>".
C/C++ :: Possible To Append Numbers To The End Of Variable Names During Runtime?
Dec 6, 2012I am trying to write a program that would convert numbers of base 10, decimal numbers, to binary or hexidecimal numbers, base 2 and base 16. I want the program to run a loop through the various numbers input and store each number converted to the new type in a separate variable with the same basic name but different last letters/digits to differentiate between them and add them to the total.
Basically, I'm saying that i have the user input a number and letters. Let's say 15, d, b. So they want to convert 15 of decimal type to binary.
The program would then take the variable used to hold that number, and the other to variables to decide what function to perform on the number.
Then I will already have a variable initialized for the 3 possible conversions (binaryKey[], decimalKey[], hexideciKey[])
Then I want it to convert it and store the number at different places in the array to form the final number. Although, there is no way to predict what number the user will input, so there is no way of knowing initially where the converted place-value will need to be placed in the array.
I was wondering if there was a way to have the program run a loop where as the progression continues, it appends a number to the end of a universal name for the variables and then adds them together in the correct order creating the sequence that means that number.
In simpler terms:
Input a number: 15
Input type of base: d
Input converted type: b
Program then continually divides the number by 2, storing the remainder in a new variable
Such as: for(int i=1, i < (str(number).len), i++){
when i = 1, you would get
int number1;
[Code] ....
and so on. Is there a way to do this???
C++ :: Append More Characters After Newline Character In Txt File
Apr 26, 2014I'm trying append more characters to a txt file after write title of foreground window and a newline character, but after first character, the next appear after a newline. Here is result => [URL].... and here is my code:
I'm using Dev C++ 4.9.9.2 compiler.
Code:
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
using namespace std;
LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam);
[Code]....
I have made some changes for this =>
Code:
if (str_window)
strcpy(str_window,str_window);
strcat(str_window,"
");
log(str_window);
[Code]...
Now print only first character in digitation after title of active window. Still printing wrong see => [URL]..... Word "good" as sample.
C++ :: Append Comma To A String - Dynamic Memory Allocation Error
May 16, 2012Trying to append a comma to a string. Getting "Segmentation Error" on Solaris when the function is entered the second time.
Code:
// Appends a comma to the given string
void appendComma(char* instring) {
if (instring == NULL) {
instring = realloc(NULL, strlen(","));
strcpy(instring,",");
[Code] .....
C :: Append Data To Array Of Structures In Memory Then Put In File When Program Ends
Dec 4, 2013I have a program that stores health information the user inputs, one person at a time. The program works perfectly with the exception of storing the data...I need to open a file and read what health data it has in it already, if any, but store the new changes, and appended data to the array of structures, to the data in memory. All of the information is only saved back in the file once the program terminates. I'm not sure how to go about doing this, so I am also not sure what to put in the function for "Save and Exit" that the user can choose in order to exit the program.
Code:
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
struct strdatabase
{
char first[20];
char last[20];
char gender[2];
[Code]...
I tried playing around with this bit of code, but I'm not sure if I'm even on the right track.
Code:
FILE *fp;
fp = fopen ("students.txt","rb"); fseek(fp, 0, SEEK_END);
long pos = ftell(fp);
fseek(fp, 0, SEEK_SET);
char *bytes = malloc(pos);
fread(bytes, pos, 1, fp);
fclose(fp);
C :: How To Append A Formatted String To A String
Aug 12, 2014How to append a formatted string to a string. I know printf will print them, but I want to append them. Is there a way to do this. I am doing a little work with pointers, and I seem to have forgotten things like this.
View 2 Replies View RelatedC++ :: How To Append Strings To The Front Of Other Strings
Apr 7, 2013I am programming a translator, and I have it so that it detects words with spaces both in front of and behind them, so I did "string.append(space);" where space equals " ". That added a space to the end, but I still need a space added to the front.
View 1 Replies View RelatedVisual C++ :: PIC To PC Using MFC Visual Studio Through Serial Communication
May 28, 2014The project is about reading data from PIC and display the data on the dialogue created by the MFC GUI of Visual studio 2010. There are 4 data need to be displayed (2 weight and 2 angle). the data will be display on the edit control box on the dialogue.
I have try to solve the COMPort and Readdata issues many times, but I'm fail. I have read many sources and implement the source codes... They are never work....
The detail about the issues that I need to solve is clearly mentioned on the main dialogue.cpp. Take a look to an uploaded zip file that I have attached.
Visual C++ :: Cannot Seem To Set Var
Nov 8, 2012What I'm trying to do is get the selected folder value put into my dirlocation var.
Code:
private void dirLocation_Click(object sender, EventArgs e) {
FolderBrowserDialog fdb = new FolderBrowserDialog();
fdb.Description ="Please choose the directory your .rlt files are located in";
if (fdb.ShowDialog() == System.Windows.Forms.DialogResult.OK) {
dirLocation = fdb.SelectedPath;
}
Is this how you do it? I keep getting an error like Cannot implicitly convert type 'type' to 'type.
C++ :: How To Use QT With Visual Studio
Aug 15, 2014I heard that you can't use it with express, but that doesn't seem right... Can you use it with Codeblocks, at least? I just hate the Qt Creator IDE. I don't like the UI... all I want to do is code Qt. I don't care much for the GUI editors.
View 10 Replies View RelatedVisual C++ :: Create MFC OCX Using DLL
Aug 28, 2014I am trying to create a OCX from a C++ dll., Here's the scenario I have a C++ dll and this dll needs to be called in VB.net program my boss want's me to create an OCX out of this.
C++ dll and use it in a VB.net class library, apparently I have created an OCX but it requires a form but the VB.net program is a class library.
Visual C++ :: How To Convert IP To Hex
Sep 27, 2012I don`t known how to convert IP to hex .
In this link [URL] .... . I see hex IP : Hex IP 0x462a1779
I want to convert IP "70.42.23.121" to "0x462a1779"
Code:
#include <winsock.h>
#include <windows.h>
#include <stdio.h>
UINT32 ip_to_hex(UINT32 ip_add) {
UINT32 ip_hex;
//code convert ip to hex
return ip_hex;
[Code[ ....
And this is result : 7b 1e 80 and a , not 0a
Further i think we must separate each octect by a (dot) . , Then convert decimal to hex.
Visual C++ :: Using COM Without Registering?
Mar 5, 2013In a C++ project, I need to call a C# created COM object (as a .dll)
Is there a way to use such a COM object without having it be registered in the registry?
The C# COM dll is just a "go between" our C++ code and a .NET library, there's no "COM contract" of any kind, the COM interfaces change each version. The fact it's COM and needs registration is annoying because it makes it hard to have multiple versions of our software installed (needed under some circumstances) and running at the same time.
I'd like a way to not have any registration at all. And just be able to do a LoadLibrary("c:TheRightPathcom.dll") of the right dll and then get going from there.
Visual C++ :: Value Of Pointers
Feb 5, 2013I'm trying to figure out the value of pointers after the following code snippet
Code:
int s[8] ;
int *iptr1, *iptr2 ;
int **iptr3 ;
for (int i = 0 ; i < 8 ; i++)
s[i] = 7 - i ;
[Code] ....
I need to find what the value of iptr1, iptr2, and iptr3 are after the code is executed.
Visual C++ :: OpenCV In MFC App?
Feb 5, 2014I have a C++ app that uses OpenCV. Currently i am statically linking the OpenCV libs into my app. This is adding an extra overhead of 6+ MB.
i would like to remove some of the features that i am not using in OpenCV. The features am using are,
Capture frames from Webcam.
Face detection.
Image formats (JPEG, PNG).
Image rotation & resizing.
Is it possible to remove other features and trim down the libs?
My C++ app is developed in Visual Studio 2012.
Visual C++ :: Using CSplitButton In VC6?
Dec 5, 2013Is there any chance to use CSplitButton in VC6 ?
I had tried to use something appropriate founded on CP, but they are using DrawItem, and I had problems with windows style, and I had tried to make myself one, overriding OnPaint, but I front with flickering (I put the sample below)... so, I wonder if I could get (from somewhere) CSplitButton and add to my project ... if you say that I could, can you provide me the CSplitButton source code ? I mean, only .cpp implementation file ...
