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Microsoft Programmer's Library 1.3
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win_lrn
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dialog
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qchecked.c
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C/C++ Source or Header
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1988-08-10
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4KB
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156 lines
/*
*
* qchecked.c
*
* This program demonstrates the use of the IsDlgButtonChecked function.
* IsDlgButtonChecked checks to see if the given button control or 3 state
* button is checked. That is not the same as seeing if the control has
* been chosen. To enact the dialog box, choose the "DIALOG" menu
* selection. To invoke a call to IsDlgButtonChecked,choose one of the two
* check boxes in the dialog box.
*
*/
#include "windows.h"
#include "qchecked.h"
HANDLE hInst;
FARPROC lpprocDialog;
long FAR PASCAL WndProc(HWND, unsigned, WORD, LONG);
BOOL FAR PASCAL DialogBoxProc(HWND, unsigned, WORD, LONG);
int PASCAL WinMain(hInstance, hPrevInstance, lpszCmdLine, cmdShow)
HANDLE hInstance, hPrevInstance;
LPSTR lpszCmdLine;
int cmdShow;
{
MSG msg;
HWND hWnd;
HMENU hMenu;
WNDCLASS wndclass;
if (!hPrevInstance)
{
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = NULL;
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = "Sample Application";
if (!RegisterClass(&wndclass))
return FALSE;
}
hWnd = CreateWindow("Sample Application",
"IsDlgItemChecked",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);
hInst = hInstance;
lpprocDialog = MakeProcInstance((FARPROC)DialogBoxProc, hInst);
ShowWindow(hWnd, cmdShow);
UpdateWindow(hWnd);
hMenu = LoadMenu(hInstance, "qchecked");
SetMenu(hWnd, hMenu);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
FreeProcInstance (lpprocDialog);
return msg.wParam;
}
long FAR PASCAL WndProc(hWnd, message, wParam, lParam)
HWND hWnd;
unsigned message;
WORD wParam;
LONG lParam;
{
switch (message)
{
case WM_COMMAND:
if (wParam == 80)
{
DialogBox(hInst, MAKEINTRESOURCE(2), hWnd, lpprocDialog);
break;
}
else
return DefWindowProc(hWnd, message, wParam, lParam);
case WM_DESTROY:
FreeProcInstance((FARPROC)lpprocDialog);
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return(0L);
}
BOOL FAR PASCAL DialogBoxProc(hDlg, message, wParam, lParam)
HWND hDlg;
unsigned message;
WORD wParam;
LONG lParam;
{
HWND hCtl;
switch (message)
{
case WM_INITDIALOG:
SendDlgItemMessage(hDlg, TOP_CONTROL, BM_SETCHECK, TRUE, (LONG) 0);
return TRUE;
break;
case WM_COMMAND:
switch (wParam)
{
case TOP_CONTROL:
if (IsDlgButtonChecked(hDlg, TOP_CONTROL))
MessageBox(GetFocus(), "IS checked", "The top control:", MB_OK);
else
MessageBox(GetFocus(), "is NOT checked", "The top control:", MB_OK);
break;
case BOTTOM_CONTROL:
if (IsDlgButtonChecked(hDlg, BOTTOM_CONTROL))
MessageBox(GetFocus(), "IS checked", "The bottom control:", MB_OK);
else
MessageBox(GetFocus(), "is NOT checked", "The bottom control:",
MB_OK);
break;
case ID_OK:
EndDialog(hDlg, TRUE);
break;
default:
MessageBox(NULL, "oops", NULL, MB_OK);
return FALSE;
}
break;
default:
return FALSE;
}
}