need some help understanding this code win32

Basicly I want to get the user to input a directory and file name in another program, then the program saves it.

I plan to modify this code to suit my needs, however i need someone to help me understand this code better.

I can't seem to find where string is when the user enter something in and clicks the button. Would be nice if someone could tell me from line 4 to 33.

Code:

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#include <windows.h>
#define ID_EDIT 1
#define ID_BUTTON 2
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
  static HWND hwndEdit;
  static HWND hwndButton;
  static int len;
  static TCHAR text[30];

  switch(msg)
  {
    case WM_CREATE:
 hwndEdit = CreateWindow(TEXT("Edit"), NULL, WS_CHILD | WS_VISIBLE | WS_BORDER,
    50, 50, 150, 20, hwnd, (HMENU) ID_EDIT,
    NULL, NULL);
 hwndButton = CreateWindow(
  TEXT("button"), TEXT("Set Title"),     
  WS_VISIBLE | WS_CHILD, 
  50, 100, 80, 25,       
  hwnd, (HMENU) ID_BUTTON, NULL, NULL);     
 break;
 case WM_COMMAND:
          if (HIWORD(wParam) == BN_CLICKED) {
              len = GetWindowTextLength(hwndEdit) + 1;
              GetWindowText(hwndEdit, text, len);
              SetWindowText(hwnd, text);
          }
 break;
 case WM_DESTROY:
  PostQuitMessage(0);
 break;
  }
  return DefWindowProc(hwnd, msg, wParam, lParam);
}
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
  LPSTR lpCmdLine, int nCmdShow )
{
  MSG  msg ;   
  WNDCLASS wc = {0};
  wc.lpszClassName = TEXT( "Edit Control" );
  wc.hInstance    = hInstance ;
  wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
  wc.lpfnWndProc  = WndProc ;
  wc.hCursor      = LoadCursor(0,IDC_ARROW);
 
  RegisterClass(&wc);
  CreateWindow( wc.lpszClassName, TEXT("Edit control"),
                WS_OVERLAPPEDWINDOW | WS_VISIBLE,
                220, 220, 280, 200, 0, 0, hInstance, 0); 
  while( GetMessage(&msg, NULL, 0, 0)) {
    TranslateMessage(&msg);
    DispatchMessage(&msg);
  }
  return (int) msg.wParam;
}

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Quote:

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Originally Posted by airesore

Would be nice if someone could tell me from line 4 to 33.

---

Somebody did. Look at the text both above and below this code on the tutorial you got it from.

ok i read it and was able to save the char array as a string. Now I want this function in my other program. How do i combine this

Code:

---

case WM_CREATE:
 hwndEdit = CreateWindow(TEXT("Edit"), NULL, WS_CHILD | WS_VISIBLE | WS_BORDER,
    50, 50, 150, 20, hwnd, (HMENU) ID_EDIT,
    NULL, NULL);
 hwndButton = CreateWindow(
  TEXT("button"), TEXT("ok"),     
  WS_VISIBLE | WS_CHILD, 
  50, 100, 80, 25,       
  hwnd, (HMENU) ID_BUTTON, NULL, NULL);     
 break;
 case WM_COMMAND:
          if (HIWORD(wParam) == BN_CLICKED) {
              len = GetWindowTextLength(hwndEdit) + 1;
              GetWindowText(hwndEdit, text, len);
              string myString =text;
             
             
            //  char *myCharArray = (char*)myString.c_str();
            //  SetWindowText(hwnd, myCharArray);
          }
 break;

---

with this

Code:

---

#include <windows.h>
#include <stdlib.h>
#include <string>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow )
{
  MSG  msg ;   
  WNDCLASS wc = {0};
  wc.lpszClassName = TEXT( "Buttons" );
  wc.hInstance    = hInstance ;
  wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
  wc.lpfnWndProc  = WndProc ;
  wc.hCursor      = LoadCursor(0, IDC_ARROW);
 
  RegisterClass(&wc);
  CreateWindow( wc.lpszClassName, TEXT("XMLtoCSV"),
                WS_OVERLAPPEDWINDOW | WS_VISIBLE,
                150, 150, 230, 150, 0, 0, hInstance, 0); 
  while( GetMessage(&msg, NULL, 0, 0)) {
    TranslateMessage(&msg);
    DispatchMessage(&msg);
  }
  return (int) msg.wParam;
}
LRESULT CALLBACK WndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
   
  switch(msg) 
  {
 case WM_CREATE:
 {
        CreateWindow(TEXT("button"), TEXT("XML to CSV"),   
              WS_VISIBLE | WS_CHILD ,
              20, 30, 80, 25,       
              hwnd, (HMENU) 1, NULL, NULL);   
     
        CreateWindow(TEXT("button"), TEXT("Split CSV"),   
              WS_VISIBLE | WS_CHILD ,
              20, 70, 80, 25,       
              hwnd, (HMENU) 2, NULL, NULL);

    CreateWindow(TEXT("button"), TEXT("Quit"),   
              WS_VISIBLE | WS_CHILD ,
              120, 50, 80, 25,       
              hwnd, (HMENU) 3, NULL, NULL);   
    break;
 }
      case WM_COMMAND:
      {
    if (LOWORD(wParam) == 2) {
      system("CSVS.bat");
    }
        if (LOWORD(wParam) == 1) {       
        //codes goes here--------------------------
    }
    if (LOWORD(wParam) == 3) {
              PostQuitMessage(0);
    }
    break;
      }
      case WM_DESTROY:
      {
        PostQuitMessage(0);
        break;
      }
  }
  return DefWindowProc(hwnd, msg, wParam, lParam);
}

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I want it to make it so that it has a text box when the person click button one.

Win32 programming goes to the Windows programming board, not the C++ board.

Quote:

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Originally Posted by Elysia

Win32 programming goes to the Windows programming board, not the C++ board.

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Yeah. Moved.

Well... if I were you, I'd stop trying to "borrow" code... scoop and poop programming almost never gives a satisfactory result...

Instead of wasting time harvesting bad code from the net... spend the same time and effort to Educate Yourself. Here's a good place to get started...

theForger's Win32 API Tutorial