Managed C++/CLI

<br />
// The header<br />
#pragma once<br />
<br />
using namespace System;<br />
using namespace System::Drawing;<br />
using namespace System::Drawing::Drawing2D;<br />
using namespace System::Windows::Forms;<br />
<br />
__gc class mlr_lb {<br />
public:<br />
	mlr_lb();<br />
	~mlr_lb();<br />
};<br />
__gc class mlr_txt {<br />
public:<br />
	mlr_txt();<br />
	~mlr_txt();<br />
<br />
	Drawing::Color color;<br />
	Drawing::Font * font;<br />
	String * txt;<br />
};<br />
__gc class mlr_img {<br />
public:<br />
	mlr_img();<br />
	~mlr_img();<br />
<br />
	PictureBoxSizeMode sizemode;<br />
	String * path;<br />
	Int32 width;<br />
	Int32 height;<br />
};<br />
__gc struct mlr_lnk {<br />
	Object * obj;<br />
	mlr_lnk * next;<br />
};<br />
__gc class mlr {<br />
public:<br />
	mlr(void);<br />
	~mlr(void);<br />
	Int32 x;<br />
	Int32 y;<br />
	mlr_lnk * lnk;<br />
	Boolean RemovePrevCtrls( Form * f );<br />
	Boolean Render( Form * f, Graphics * g, Int32 x, Int32 y, Int32 w, Int32 h );<br />
};<br />

<br />
// The source.<br />
#include "StdAfx.h"<br />
#include ".\mlr.h"<br />
#using <mscorlib.dll><br />
<br />
String * JoinStrAr( String * s[], Int32 x, Int32 l, String * d )<br />
{<br />
	String * str = S"";<br />
	for( Int32 index = x; index < x+l; index++ )<br />
	{<br />
		str = S""->Concat( str->Trim(), d, s[index]->Trim(), d);<br />
	}<br />
	if(str->Length < 1)<br />
		return str;<br />
	return str->Substring( 0, str->Length - d->Length );<br />
}<br />
String * MakeWidthFit( String * s, System::Windows::Forms::Label * l, Int32 w )<br />
{<br />
	l->Text = s;<br />
	if( l->Width > w )<br />
	{<br />
		String * ls[] = s->Trim()->Split( S" "->ToCharArray() );<br />
		for( Int32 index = ls->Length; index > -1; index-- )<br />
		{<br />
			l->Text = JoinStrAr( ls, 0, index, " " )->Trim();<br />
			if( l->Width <= w )<br />
			{<br />
				return JoinStrAr( ls, index, ls->Count - index, " " );<br />
			}<br />
		}<br />
		return s; /* it's just a long long line. :-) */<br />
	}<br />
	return NULL;<br />
}<br />
//<br />
mlr::mlr(void) { }<br />
mlr::~mlr(void) { }<br />
Boolean mlr::RemovePrevCtrls( Form * f )<br />
{<br />
	Int32 cnt;<br />
start:;<br />
	cnt = f->Controls->Count;<br />
	for( Int32 index = 1; index < cnt; index++ )<br />
		if( f->Controls->get_Item( index )->Tag->ToString()->CompareTo( S"MLR_CTRL" ) == 0 )<br />
		{<br />
			f->Controls->RemoveAt( index );<br />
			goto start;<br />
		}<br />
	return true;<br />
}<br />
Boolean mlr::Render( Form * f, Graphics * g, Int32 x, Int32 y, Int32 w, Int32 h )<br />
{<br />
	String * str;<br />
	Int32 cx = x;<br />
	Int32 cy = y;<br />
	Int32 clh = 0;<br />
	mlr_lnk * l = lnk;<br />
<br />
	RemovePrevCtrls( f );<br />
	f->Update();<br />
<br />
	while( lnk != NULL )<br />
	{<br />
		if( lnk->obj->GetType()->FullName->CompareTo( "mlr_txt" ) == 0 )<br />
		{<br />
			mlr_txt * txt = static_cast<mlr_txt*>( lnk->obj );<br />
			str = static_cast<mlr_txt*>( lnk->obj )->txt;<br />
			while( str != NULL )<br />
			{<br />
				/* [create] label control */<br />
				System::Windows::Forms::Label * newl = new System::Windows::Forms::Label();<br />
				newl->Tag = S"MLR_CTRL"; /* quick removal */<br />
				newl->AutoSize = true;<br />
				newl->Location = Point( cx, cy );<br />
				newl->Font = txt->font;<br />
				str = MakeWidthFit( str, newl, w - (cx - x) );<br />
				if( str != NULL )<br />
				{<br />
					/* no more room left on line */<br />
					cx = x;<br />
					if( newl->Height > clh )<br />
						clh = newl->Height;<br />
					cy = cy + clh;<br />
					clh = 0;<br />
				}else {<br />
					clh = newl->Height;<br />
					cx += newl->Width;<br />
				}<br />
				f->Controls->Add( newl );<br />
			}<br />
<br />
		}<br />
		if( lnk->obj->GetType()->FullName->CompareTo( "mlr_lb" ) == 0 )<br />
		{<br />
			cx = x;<br />
			cy = cy + clh;<br />
			clh = 0;<br />
		}<br />
		if( lnk->obj->GetType()->FullName->CompareTo( "mlr_img" ) == 0 )<br />
		{<br />
			mlr_img * img = static_cast<mlr_img*>( lnk->obj );<br />
			System::Windows::Forms::PictureBox * newpb = new System::Windows::Forms::PictureBox();<br />
			newpb->Tag = S"MLR_CTRL";<br />
			newpb->Width = img->width;<br />
			newpb->Height = img->height;<br />
			newpb->BackColor = Color::AliceBlue;<br />
			newpb->Image = Image::FromFile( img->path );<br />
			newpb->SizeMode = img->sizemode;<br />
			/* can we fit image on existing line? */<br />
			if( cx == x ) /* no choice */<br />
			{<br />
imgnochoice:;<br />
				newpb->Location = Point( cx, cy );<br />
			} else {<br />
				if( w - (cx - x) >= img->height ) /* it can fit */<br />
				{<br />
					newpb->Location = Point( cx, cy );<br />
					cx += img->width;<br />
					if( img->height > clh )<br />
						clh = img->height;<br />
				}else{<br />
					/* move down a line */<br />
					cx = x;<br />
					cy = cy + clh;<br />
					goto imgnochoice;<br />
				}<br />
			}<br />
			f->Controls->Add( newpb );<br />
		}<br />
		lnk = lnk->next;<br />
	}<br />
	return true;<br />
}<br />
//<br />
mlr_txt::mlr_txt(void) { }<br />
mlr_txt::~mlr_txt(void) { }<br />
//<br />
mlr_img::mlr_img(void) { }<br />
mlr_img::~mlr_img(void) { }<br />
//<br />
mlr_lb::mlr_lb(void) { }<br />
mlr_lb::~mlr_lb(void) { }<br />

<br />
// The demo/testing code<br />
	private: System::Void button1_Click(System::Object *  sender, System::EventArgs *  e)<br />
			 {<br />
 				 mlr * m = new mlr();<br />
				 //<br />
				 mlr_txt * txt1 = new mlr_txt();<br />
				 mlr_txt * txt2 = new mlr_txt();<br />
				 mlr_img * img1 = new mlr_img();<br />
				 mlr_lb * lb1 = new mlr_lb();<br />
				 //<br />
				 txt1->font = new Drawing::Font( "Arial", 15 );<br />
				 txt1->color = Color::Red;<br />
				 txt1->txt = S"Hello, my name is kevin. I am writting this long lone for a reason can you guess what the reason is?";<br />
				 m->lnk = new mlr_lnk;<br />
				 m->lnk->obj = txt1;<br />
				 m->lnk->next = new mlr_lnk;<br />
				 //<br />
				 img1->width = 250;<br />
				 img1->height = 250;<br />
				 img1->path = "c:\\b.jpg";<br />
				 img1->sizemode = PictureBoxSizeMode::StretchImage;<br />
				 m->lnk->next->obj = img1;<br />
				 m->lnk->next->next = new mlr_lnk;<br />
				 //<br />
 				 m->lnk->next->next->obj = lb1;<br />
				 m->lnk->next->next->next = new mlr_lnk;<br />
				 //<br />
				 txt2->font = new Drawing::Font( "Arial", 10 );<br />
				 txt2->color = Color::Red;<br />
				 txt2->txt = S"Alright, im just going to start talking about some apples that fell off a tree and landed into a truck then got driven towards the town and a bird pecked one off and fly over the river back to it's next and feed its babys while it watch a hunter track a deer!";<br />
				 m->lnk->next->next->next->obj = txt2;<br />
				 m->lnk->next->next->next->next = NULL;<br />
				 //<br />
				 m->Render( this, this->CreateGraphics(), 10, 10, this->Width - 10, this->Height - 10 );<br />
			 }<br />

TOXCCT >>> GEII power

<br />
void displaychar(int mychar) //outside the namespace<br />
{<br />
//showchar(mychar);<br />
Form1::showchar(mychar);<br />
}<br />

<br />
Application::Run(new Form1());<br />

int granularity = 100; // number of milliseconds to sleep between attempts
int attempt = 2000; // number of milliseconds to try
int attempted = 0; // counter
while (attempted < attempt)
{
    // check for input (must not block)
    if (inputIsAvailable())
    {
        // we already have input
        doSomething();
    }
    else
    {
        // wait for input
        Sleep(granularity);
        attempted += granularity;
    }
}
// we never got input
doSomethingElse();

<br />
#include <iostream><br />
using namespace std;<br />
// cout << [wide range of types] << [wide range of types] << endl;<br />
char a = 'a';<br />
int b = 38273;<br />
double c = 9382;<br />
char * d = "hello";<br />
cout << a << " " << b << " " << c << d << endl;<br />

<br />
#include "stdafx.h"<br />
#include <windows.h><br />
#include <iostream><br />
using namespace std;<br />
int main(int argc, _TCHAR* argv[])<br />
{<br />
	char * OurBuffer = new char[2048];<br />
	FILE * FileHandle;<br />
    /////////////////////////////////////////////////////////////<br />
	cout << "Reading from C:\\BOOT.INI, using a "  <br />
		 << ( sizeof(char) * 2048 ) <br />
		 << " byte buffer." <br />
		 << endl;<br />
	/////////////////////////////////////////////////////////////<br />
	cout << "Now displaying the file as it is read line by line." <br />
		 << endl;<br />
    /////////////////////////////////////////////////////////////<br />
	///// EXAMPLE:   FileHandle = fopen( "C:\\mydir\\myfile.txt", "r" )<br />
	FileHandle = fopen( "c:\\boot.ini", "r" );<br />
	while( OurBuffer[0] != 0 )<br />
	{<br />
		/////////////////////////////////////////////////////////////<br />
		OurBuffer[0] = 0;<br />
		fgets( OurBuffer, 2048 * sizeof(char), FileHandle );<br />
		cout << OurBuffer;<br />
		/////////////////////////////////////////////////////////////<br />
	}<br />
	/////////////////////////////////////////////////////////////<br />
	return 0;<br />
}<br />

<br />
Get a string from a stream.<br />
<br />
char *fgets( <br />
   char *string,<br />
   int n,<br />
   FILE *stream <br />
);<br />
wchar_t *fgetws( <br />
   wchar_t *string,<br />
   int n,<br />
   FILE *stream <br />
);<br />
Parameters<br />
string <br />
Storage location for data. <br />
n <br />
Maximum number of characters to read. <br />
stream <br />
Pointer to FILE structure. <br />
Return Value<br />
Each of these functions returns string. NULL is returned to indicate an error or an end-of-file condition. Use feof or ferror to determine whether an error occurred.<br />

<br />
Open a file.<br />
<br />
FILE *fopen( <br />
   const char *filename,<br />
   const char *mode <br />
);<br />
FILE *_wfopen( <br />
   const wchar_t *filename,<br />
   const wchar_t *mode <br />
);<br />
Parameters<br />
filename <br />
Filename. <br />
mode <br />
Type of access permitted. <br />
Return Value<br />
Each of these functions returns a pointer to the open file. A null pointer value indicates an error. <br />
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