Providing access to the GUI through the keyboard (Xp, Visual Studio, C ++)
I created a GUI with a button, button groups, edits, lists ... etc ... but now I want to know how to make my gui accessible via keyboard, I mean changing focus by clicking a tab button. Does anyone know how to do this? I am using Windows Xp and the GUI is written in C ++ using Visual Studio 2008.
Thank you so much
UPDATE:
INT APIENTRY _tWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
INITCOMMONCONTROLSEX ics;
ics.dwSize = sizeof(ics);
ics.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&ics);
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_PRUEBA, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDA_ACCEL_TABLE));
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if ((!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) && (!IsDialogMessage(msg.hwnd, &msg)))
//if ((!IsDialogMessage(msg.hwnd, &msg)) & (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg) ))
//if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int) msg.wParam;
}
I have a lot of controls in my GUI, should I include WS_TABSTOP in all of them? What if I have a group of buttons ... should I put a WS_TABSTOP in each button and in the group? only in individual buttons?
For example, I will insert the group that I created:
INT CrearControles(HWND hwnd, LPARAM lParam) {
HINSTANCE hInstance;
HFONT hfont;
HWND hctrl;
int i;
hInstance = ((LPCREATESTRUCT)lParam)->hInstance;
hfont = (HFONT)GetStockObject( DEFAULT_GUI_FONT );
/* Insertar controles */
hctrl = CreateWindowEx(
0,
"BUTTON", /* Nombre de la clase */
"Rol", /* Texto del título */
BS_GROUPBOX | WS_CHILD | WS_VISIBLE | WS_GROUP , /* Estilo */
20, 15, /* Posición */
180, 100, /* Tamaño */
hwnd, /* Ventana padre */
(HMENU)GRUPO_ROL,/* Identificador del control */
hInstance, /* Instancia */
NULL); /* Sin datos de creación de ventana */
SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
hctrl = CreateWindowEx(0, "BUTTON", "Receptor", BS_NOTIFY | BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 30, 35,
70, 25, hwnd, (HMENU)BOTON_RECEPTOR, hInstance, NULL);
SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
SendDlgItemMessage(hwnd, BOTON_RECEPTOR, BM_SETCHECK, BST_CHECKED, 0);
SetFocus(hctrl);
hctrl = CreateWindowEx(0, "BUTTON", "Emisor", BS_NOTIFY | BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 30, 65,
70, 25, hwnd, (HMENU)BOTON_EMISOR, hInstance, NULL);
SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
hctrl = CreateWindowEx(0, "STATIC", "Telefono", SS_SIMPLE | WS_CHILD | WS_VISIBLE, 150, 55, 100, 55, hwnd, (HMENU)LABEL_TELEFONO,
hInstance, NULL);
SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
SetFocus(hctrl);
hctrl = CreateWindowEx(0, "EDIT", "", ES_READONLY | ES_LEFT | WS_CHILD | WS_VISIBLE | WS_BORDER | WS_TABSTOP | ES_NUMBER , 115, 68,
80, 20, hwnd, (HMENU)EDIT_TELEFONO, hInstance, NULL);
SendMessage(hctrl, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0));
SetFocus(hctrl);
return 1;
}
thank
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If you're using the GUI like a standard modal dialog, you should get tabbing and Alt keys to manipulate controls for free.
those. controls with the WS_TABSTOP styleset with which you should be able to inject tabs, key-keyed controls (for example: a button labeled "& Do Something" should be accessible with Alt + D - and D should be underlined).
If your window does not act as a standard modal dialog, to get this behavior, your message loop must call IsDialogMessage before sending each message.
eg:
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
if (!IsDialogMessage(m_hWndYourWindow, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
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