having problems with subclasses

Ok here is my problem i have the following code in WNDPROC I create a edit box and a edit box beneath that edit box where the user can enter chat then it displays the contents in the first edit box like a chat window. The problem I am having with this code is that I can not get the subclass to work for list2 which is a window that I have created to accept text. I want to make it so the user does not have to press the ok button. Instead I want the user to press the enter button and the text would go to the first text box. The Problem with this is when SetWindowSubclass(list2,GWL_WNDPROC,(LONG_PTR)EditSubclassProc); it freezes up the window and the program is operates once I remove this statement. I still want the user to have the option of pressing enter to continue the code.

i have also used SetWindowLong(getdlgitem(hwnd,idc_edt1), GWL_WNDPROC, procptr(SubClassProc)) instead of setwindowsubclass still the same results


here is the win32 code I have

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#include<iostream>
#include"string"
#include<windows.h>
#include "winpart.h"
#include "winchat.h"
#include <list>

#include<string>
using namespace std;

WNDCLASS wc;
			TCHAR lrst[500];
		TCHAR lrsttwo[70000];
struct CHARINFO
{
	string charname;
	int charstr;
	int charremstr;
	int chartothealth;
	int charremhealth;
	int charlevel;
	int charxpos;
	int charypos;
	int zone;
	int charinvslot[100];
	int bankslot[100];

};
list <CHARINFO> charinfo;
list <CHARINFO>::iterator charinfoiter;

		//TCHAR lrsttemp[70000];
DWORD dwExStyle;
//DWORD dwExStyle2;
WPARAM wpar;

DWORD dwStyle;
int end=0;
//DWORD dwStyle2;



HDC hdc=NULL;
HGLRC hrc=NULL;
HWND cheakboxs;
HINSTANCE hInstance;

static HWND list2;
HWND MSGbox;
//HWND list22;
HWND okbutton;
//	CMENU menucreation;

//HWND okbutton2;
#define CHANGETEXT 1000
#define CHANGEBKG	1001
#define MAX_LOADSTRING 100
#define edit_box_items 1
#define entry_box_item 2
#define button_pressed 3
TCHAR szTitle[MAX_LOADSTRING];	
HWND hWnd;
HWND hWnd2;

bool active =TRUE;
string returnstr;
//string returnstr2;
//string returnstr3;
//string returnstr4;
//string returnstr5;



//void hidewin2();


void setstr(string temp)
{
	returnstr=temp;
}
void enterpressedchat()
{
	//string temp="";
	GetDlgItemText(hWnd,1,lrst,150);
	//SetTextColor((HDC)wpar,RGB(250,0,0));
	int xcnt=0;
	if(lrst[0]!='\0')
	{
	GetDlgItemText(hWnd,2,lrsttwo,70000);
	if(end>=69500)
	{
		int pcnt=0;
		for(int xcnt=1000;lrsttwo[xcnt]!='\0';xcnt++)
		{
			lrsttwo[pcnt]=lrsttwo[xcnt];
			pcnt++;
		}
		lrsttwo[pcnt]='\0';
		end=pcnt;
	}



	if(end!=0)
	{
		lrsttwo[end]='\r';
		lrsttwo[end+1]='\n';
		end++;
		end++;
		while(lrst[xcnt]!='\0')
		{
			lrsttwo[end]=lrst[xcnt];
			xcnt++;
			end++;
		}
		lrsttwo[end]='\0';
	}
	else
	{
		while(lrst[xcnt]!='\0')
		{
			lrsttwo[end]=lrst[xcnt];
			xcnt++;
			end++;
		}
		lrsttwo[end]='\0';
		
	}
	//xcnt--;
	
	
//	lrsttwo=temp.c_str();
	SetDlgItemText(hWnd,2,lrsttwo);
	}
	SetDlgItemText(hWnd,1,"\0");
	//SendMessage(
}
string retstr()
{
	return returnstr;	
}
WNDPROC wpOrigEditProc;
LRESULT CALLBACK EditSubclassProc(HWND hwnd,UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	//WNDPROC oldProc;

	switch(uMsg)
	{
		case WM_KEYDOWN:
	{
		if(wParam==VK_TAB)
		{
			MessageBox(hWnd,"hi","hi",MB_OK|MB_ICONEXCLAMATION);
			return 0;

			}
	}


	}
	//oldProc=(WNDPROC)GetWindowLongPtr(hWnd,GWLP_USERDATA);
	return DefWindowProc(hWnd,uMsg,wParam,lParam);
}

LRESULT CALLBACK WndProc(HWND hWnd,UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	wpar=wParam;

	static COLORREF customcolors[16];
	LPCSTR lpcwstr;
	
	HINSTANCE hInst=(HINSTANCE)GetWindowLong(hWnd,GWL_HINSTANCE);
	static LOGBRUSH logbrush;
	static TCHAR lpstr[500];
	char *newchar=new char[10];

	string str="";
	int x=0;
	int cnt=0;
	
	int numstr;
	switch(uMsg)
	{
	case WM_CREATE:
		MSGbox=CreateWindow(TEXT("EDIT"),"",WS_CHILD|WS_VISIBLE|WS_BORDER|WS_VSCROLL|ES_MULTILINE|ES_READONLY,0,20,195,130,hWnd,(HMENU)entry_box_item,hInst,NULL);
		
		list2=CreateWindow(TEXT("EDIT"), "", WS_CHILD|WS_VISIBLE|WS_BORDER|ES_AUTOHSCROLL|ES_WANTRETURN,0,150,165,20, hWnd, (HMENU)edit_box_items, hInst, NULL);//CreateWindow("listbox",szTitle,WS_CHILD|WS_VISIBLE|LBS_STANDARD,15,15,450,90,hWnd,(HMENU)NULL,hInst,NULL);
		SetWindowSubclass(list2,GWL_WNDPROC,(LONG_PTR)EditSubclassProc);
			break;
	case WM_COMMAND:

	
		if(LOWORD(wParam)==3)
		{
			
			
			enterpressedchat();
		//	GetDlgItemText(MSGbox,2,lrsttwo,70000);
			//while(lrst[
			//SendMessage(MSGbox,2,"hi there",NULL);
		}
		
	case WM_KEYDOWN: case WM_KEYUP:
		{
			if(wParam==VK_RETURN)
			{
				enterpressedchat();
			}
		}

		break;
	}
	return DefWindowProc(hWnd,uMsg,wParam,lParam);
}

void showwinchat()
{
	//ShowWindow(hWnd,SW_HIDE);
	ShowWindow(okbutton,SW_SHOW);

	ShowWindow(hWnd,SW_SHOW);	
	//SetLayeredWindowAttributes(hWnd,0,50,LWA_ALPHA);

}

void hidewinchat()
{
	ShowWindow(hWnd,SW_HIDE);
}

void initwindowrectchat()
{
	LPCSTR winrec="Text Box";
	//LPCWSTR winrec2=L"Change two";



	

	hInstance=GetModuleHandle(NULL);
	//hInstance2=GetModuleHandle(NULL);
	
	wc.style=CS_HREDRAW|CS_VREDRAW|CS_OWNDC;
	wc.lpfnWndProc=(WNDPROC)WndProc;
	wc.cbClsExtra=0;
	wc.cbWndExtra=0;
	wc.hInstance=hInstance;
	wc.hIcon=LoadIcon(NULL,IDI_HAND);
	wc.hCursor=LoadCursor(NULL,IDC_ARROW);
	wc.hbrBackground=(HBRUSH)GetStockObject(LTGRAY_BRUSH);
	wc.lpszMenuName="IDC_HEIGHTMAP";
	wc.lpszClassName="DarkGDK";
	if(!RegisterClass(&wc))
	{
		MessageBox(NULL,"Failed to Register the window class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
		//return false;
	}

	hWnd=CreateWindowEx(dwExStyle,"DarkGDK",winrec,dwStyle|WS_CLIPSIBLINGS|WS_CLIPCHILDREN|WS_OVERLAPPEDWINDOW,0,0,210,240,NULL,NULL,hInstance,NULL);
	hInstance=GetModuleHandle(NULL);
	SetLayeredWindowAttributes(hWnd,0,50,LWA_ALPHA);
	
	SetForegroundWindow(hWnd);
	


}
Last edited on
You have changed your program so much that your program contains some mistakes.

Once I got around those, I found that the program locked up as you say.
The problem is in this function:
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LRESULT CALLBACK EditSubclassProc(HWND hwnd,UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    //WNDPROC oldProc;

    switch(uMsg)
    {
        case WM_KEYDOWN:
    {
        if(wParam==VK_TAB)
        {
            MessageBox(hWnd,"hi","hi",MB_OK|MB_ICONEXCLAMATION);
            return 0;

            }
    }


    }
    //oldProc=(WNDPROC)GetWindowLongPtr(hWnd,GWLP_USERDATA);
    return DefWindowProc(hWnd,uMsg,wParam,lParam);
}


You should notice that the function is called with parameter hwnd but you are calling
the DefWindowProc function with parameter hWnd;

Notice the spelling!!!!!!!
hWnd is the global variable of the Main window handle - so you were getting your
windows crossed!!!!
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