C++ adaugare text pe imagine

[Maximus]

Salut, am gasit acest cod pe net

#include "stdafx.h"
#include <stdio.h>
#include <gd.h>
#include <gdfontg.h>

int main(int argc, char *argv[]) {
 gdImagePtr img;
 FILE *fp = {0};
 int width, white, black;

 width = white = black = 0;

 if(argc != 3) {
  fprintf(stderr, "Usage: pngtxt image.png 'Hello world.. !'\n");
  return 1;
 }

 fp = fopen(argv[1], "wb");
 if(fp == NULL) {
  fprintf(stderr, "Error - fopen(%s)\n", argv[1]);
  return 1;
 }

 width = strlen(argv[2]);

 img = gdImageCreate(width * 10, 20);

 white = gdImageColorAllocate(img, 255, 255, 255);
 black = gdImageColorAllocate(img, 0, 0, 0);

 gdImageString(img, gdFontGiant, 2, 1, argv[2], black);

 gdImagePng(img, fp); 

 fclose(fp); 
 gdImageDestroy(img);

 return 0;
}

Cand compilez, imi da

Error	3	error C2664: 'gdImageString' : cannot convert parameter 5 from 'char *' to 'unsigned char *'	c:\users\maximus\documents\visual studio 2010\projects\text2pic\text2pic\text2pic.cpp	31	1	text2pic
Error	2	error C3861: 'strlen': identifier not found	c:\users\maximus\documents\visual studio 2010\projects\text2pic\text2pic\text2pic.cpp	24	1	text2pic
	5	IntelliSense: argument of type "char *" is incompatible with parameter of type "unsigned char *"	c:\users\maximus\documents\visual studio 2010\projects\text2pic\text2pic\text2pic.cpp	31	40	text2pic
	4	IntelliSense: identifier "strlen" is undefined	c:\users\maximus\documents\visual studio 2010\projects\text2pic\text2pic\text2pic.cpp	24	10	text2pic
Warning	1	warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.	c:\users\maximus\documents\visual studio 2010\projects\text2pic\text2pic\text2pic.cpp	18	1	text2pic

Ma poate ajuta cineva? Raman recunoscator.Multumesc

[noVaLue]

In loc de #include <stdio.h> pune #include <iostream>

Eu nu am acele headere, deci nu pot sa-ti spun...

[nedo]

De fapt, ala nu se compileaza cu c++ ci cu c

Ala e cod de c. Compileaza-l cu gcc in loc de g++ si ar trebui sa functioneze fara probleme.

[phreak]

De fapt, ala nu se compileaza cu c++ ci cu c

Ala e cod de c. Compileaza-l cu gcc in loc de g++ si ar trebui sa functioneze fara probleme.

Fii mai atent, foloseste visual studio.

Cat despre erorile tale..

http://msdn.microsoft.com/en-us/library/78zh94ax(v=vs.100).aspx

http://www.learncpp.com/cpp-tutorial/44-type-conversion-and-casting/

http://msdn.microsoft.com/en-us/library/yeby3zcb(v=vs.100).aspx

[Maximus]

Multumesc tuturor. Am reusit.