Problem with text field.

How do I change my code so that after typing in the text field, when I press enter, it has the same effect as pressing the "Translate!" button.

Code:

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#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#define compare(a1,b1) !stricmp(a1,b1)
#define ID_OF_BUTTON 1101
#define ID_MYEDIT 3460
const char g_szClassName[] = "myWindowClass";

HWND hWndMyEdit;

int doSwilly(char *buf)
{
 // this what happens when you click translate
 return 0;
}

// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    char buf[500];

    switch(msg)
    {
        case WM_CLOSE:
              DeleteFile("temp.t");
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
        DeleteFile("temp.t");
            PostQuitMessage(0);
        break;
        case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case ID_OF_BUTTON:
        GetWindowText(hWndMyEdit, buf, 500);
        doSwilly(buf);
        break;
        }
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc;
    HWND hwnd;
    MSG Msg;
    //Step 1: Registering the Window Class
    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style        = 0;
    wc.lpfnWndProc  = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance    = hInstance;
    wc.hIcon        = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor      = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW);
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = g_szClassName;
    wc.hIconSm      = LoadIcon(NULL, IDI_APPLICATION);
    srand(time(NULL));
    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    // Step 2: Creating the Window
    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        g_szClassName,
        "Swilly translator, version 2.",
        WS_SYSMENU,
        CW_USEDEFAULT, CW_USEDEFAULT, 580, 50,
        NULL, NULL, hInstance, NULL);
        hWndMyEdit = CreateWindow("EDIT",
                      "", WS_CHILD | WS_VISIBLE,
                      0, 0, 489,20, hwnd,
                      (HMENU) ID_MYEDIT,
                      hInstance, NULL);

    CreateWindow(
    "button",
    "Translate!",
    WS_CHILD | WS_VISIBLE,
    489, 0,
    80, 20,
    hwnd,
    (HMENU)ID_OF_BUTTON,
    0,
    NULL
    );


    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    // Step 3: The Message Loop
    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}

---

Add this to your windows procedure;

Code:

---

case WM_KEYDOWN:
        if((int) wParam == VK_RETURN){
        GetWindowText(hWndMyEdit, buf, 500);
        doSwilly(buf);
        }
        else return DefWindowProc(hwnd, msg, wParam, lParam);
        break;

---

That works, cheers :D

Oh, actually it doesn't

Damn my premptive posting.

It works as long as the text field aint selected

Whoa....I see...when you are typing the focus is on the edit so it wont work....give me a minute

...and maybe you could tell me how I make it so the text field is automatically in focus? please?

I guess the easyies way would be to subclass the edit window......


I dont think standard controls send parent notifications...


I have something I have to do right now, but if nobody has answered before I get back I will look at it again...sorry..

Sorry for the delay mate...had to go online to do my weekly shop or I'd be eating carrots all damn week :D

Code:

---

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#define compare(a1,b1) !stricmp(a1,b1)
#define ID_OF_BUTTON 1101
#define ID_MYEDIT 3460
const char g_szClassName[] = "myWindowClass";

HWND hWndMyEdit;
WNDPROC MainWindProc;


int doSwilly(char *buf)
{
 // this what happens when you click translate
        MessageBox(0,"","",MB_OK);
 return 0;
}

LRESULT CALLBACK EditProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
       
        char buf[500];
        switch(msg){
                case WM_CHAR:
                        if((int) wParam == VK_RETURN){
                                GetWindowText(hwnd, buf, 500);
                                doSwilly(buf);
                                break;
                        }
                        else return CallWindowProc(MainWindProc,hwnd, msg, wParam, lParam);
                        break;
        }
        return CallWindowProc(MainWindProc,hwnd, msg, wParam, lParam);
}


// Step 4: the Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    char buf[500];

    switch(msg)
    {
                case WM_KEYDOWN:
                        if((int) wParam == VK_RETURN){
                                GetWindowText(hWndMyEdit, buf, 500);
                                doSwilly(buf);
                                break;
                        }
                        else return DefWindowProc(hwnd, msg, wParam, lParam);
                        break;
        case WM_CLOSE:
              DeleteFile("temp.t");
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
        DeleteFile("temp.t");
            PostQuitMessage(0);
        break;
        case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case ID_OF_BUTTON:
        GetWindowText(hWndMyEdit, buf, 500);
        doSwilly(buf);
        break;
        }
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASSEX wc;
    HWND hwnd;
    MSG Msg;
    //Step 1: Registering the Window Class
    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style        = 0;
    wc.lpfnWndProc  = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance    = hInstance;
    wc.hIcon        = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor      = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW);
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = g_szClassName;
    wc.hIconSm      = LoadIcon(NULL, IDI_APPLICATION);
    srand(time(NULL));
    if(!RegisterClassEx(&wc))
    {
        MessageBox(NULL, "Window Registration Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    // Step 2: Creating the Window
    hwnd = CreateWindowEx(
        WS_EX_CLIENTEDGE,
        g_szClassName,
        "Swilly translator, version 2.",
        WS_SYSMENU,
        CW_USEDEFAULT, CW_USEDEFAULT, 580, 50,
        NULL, NULL, hInstance, NULL);
       
        hWndMyEdit = CreateWindow("EDIT",
                      "", WS_CHILD | WS_VISIBLE,
                      0, 0, 489,20, hwnd,
                      (HMENU) ID_MYEDIT,
                      hInstance, NULL);

    CreateWindow(
    "button",
    "Translate!",
    WS_CHILD | WS_VISIBLE ,
    489, 0,
    80, 20,
    hwnd,
    (HMENU)ID_OF_BUTTON,
    0,
    NULL
    );

        MainWindProc =  (WNDPROC)SetWindowLong(hWndMyEdit,GWL_WNDPROC,(DWORD)EditProc);

    if(hwnd == NULL)
    {
        MessageBox(NULL, "Window Creation Failed!", "Error!",
            MB_ICONEXCLAMATION | MB_OK);
        return 0;
    }

    ShowWindow(hwnd, nCmdShow);
    UpdateWindow(hwnd);

    // Step 3: The Message Loop
    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}

---

I have used SetWindowLong to sublass your edit box and filter out all of the enter key presses........have a go and see if its ok for you

Thanks very much, that does work.


Now how can I make it automatically focus the text field when the program starts?

Code:

---

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    char buf[500];


    switch(msg)
    {
               
                    case WM_ACTIVATE:
                        SetFocus(hWndMyEdit);
                        break;
                case WM_KEYDOWN:
                        if((int) wParam == VK_RETURN){
                                GetWindowText(hWndMyEdit, buf, 500);
                                doSwilly(buf);
                                break;
                        }
                        else return DefWindowProc(hwnd, msg, wParam, lParam);
                        break;
        case WM_CLOSE:
              DeleteFile("temp.t");
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
        DeleteFile("temp.t");
            PostQuitMessage(0);
        break;
        case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case ID_OF_BUTTON:
        GetWindowText(hWndMyEdit, buf, 500);
        doSwilly(buf);
        break;
        }
        break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

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Thanks again, you've been a great help. :)