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Angel Dimitrov · Guest

I have the next problem:

There is Form1 and Form2. I want when I press a button on Form2 to be
drawn a line on Form1.

How to do this?

I tried with Form1->Canvas->LineTo & MoveTo but
it said "Undefined Symbol "Form1".

Please write me on:

stormlaboratory @ yahoo . com

Thanks in advance!

Angel Dimitrov

##########################################################
Unit1.cpp:
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
//my
#include <Unit2.cpp>
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
Form2->ShowModal();
}
//---------------------------------------------------------------------------

##########################################################
Unit2.cpp:
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit2.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm2 *Form2;
//---------------------------------------------------------------------------
__fastcall TForm2::TForm2(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm2::Button1Click(TObject *Sender)
{
Form1->Canvas->Pen->Color=RGB(0,0,0);
Form1->Canvas->LineTo(0,0);
Form1->Canvas->MoveTo(100,100);
}
//---------------------------------------------------------------------------