[C/API di Windows] Inserire elementi in un combobox

[php_4ever]

/* per GetConsoleWindow */
#define _WIN32_WINNT 0x0500

#include <stdio.h>
#include <windows.h>

#define COMBO_PROF   1201

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
int RegisterDefaultClass(HINSTANCE hInstance);
void ClientResize(HWND hWnd, int nWidth, int nHeight);

HWND window, combo_prof;

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    MSG Msg;

    if (!(RegisterDefaultClass(hInstance)))
    {
        return 1;
    }

    //
    // CREO LA FINESTRA
    //
    window = CreateWindow (
                                "defaultClass",
                                "Firefox Search Engine Fixer",
                                WS_OVERLAPPEDWINDOW,
                                CW_USEDEFAULT,
                                0,
                                CW_USEDEFAULT,
                                0,
                                (HWND) NULL,
                                (HMENU) NULL,
                                hInstance,
                                NULL
                             );

    if (!window)
    {
        return 1;
    }

    ClientResize(window, 340, 340);

    //
    // COMBO BOX
    //

    combo_prof = CreateWindow (
                            "COMBOBOX",
                            "",
                            WS_CHILD|
                            WS_VISIBLE|
                            CBS_DROPDOWNLIST|
                            CBS_HASSTRINGS,
                            10,
                            30,
                            320,
                            20,
                            window,
                            COMBO_PROF,
                            hInstance,
                            NULL
                        );

    if (!combo_prof)
    {
        return COMBO_PROF;
    }

    SendMessage(combo_prof, CB_ADDSTRING, 0, "test");
    SendMessage(combo_prof, CB_ADDSTRING, 0, "test2");

    ShowWindow(window, nCmdShow);
    UpdateWindow(window);

    while(GetMessage(&Msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    return Msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
        case WM_CLOSE:
            DestroyWindow(hwnd);
        break;
        case WM_DESTROY:
            PostQuitMessage(0);
        break;
        //case WM_COMMAND:
        //    switch(LOWORD(wParam))
        //    {
        //        case default
        //            printf("");
        //        break;
        //    }
        //break;
        default:
            return DefWindowProc(hwnd, msg, wParam, lParam);
    }
    return 0;
}

int RegisterDefaultClass(HINSTANCE hInstance)
{
    const char g_szClassName[] = "defaultClass";
    WNDCLASSEX wc;

    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);

    if(!(RegisterClassEx(&wc)))
    {
        return 0;
    }
    return 1;
}

void ClientResize(HWND hWnd, int nWidth, int nHeight)
{
    RECT rcClient, rcWindow;
    POINT ptDiff;
    GetClientRect(hWnd, &rcClient);
    GetWindowRect(hWnd, &rcWindow);
    ptDiff.x = (rcWindow.right - rcWindow.left) - rcClient.right;
    ptDiff.y = (rcWindow.bottom - rcWindow.top) - rcClient.bottom;
    MoveWindow(hWnd,rcWindow.left, rcWindow.top, nWidth + ptDiff.x, nHeight + ptDiff.y, TRUE);
}

Ho provato con questo codice, ma senza risultati. Il combobox (drop down list) rimane vuoto.

[linoma]

Hai provato ad aumentare la lunghezza del combo? Mi pare tu abbia solo 20.

[php_4ever]

Ops, grazie.