//======================================================================
// HelloPPC - A simple application for the Pocket PC
//
// Written for the book Programming Windows CE
// Copyright (C) 2003 Douglas Boling
//
//======================================================================
#include <windows.h> // For all that Windows stuff
#include <commctrl.h> // Command bar includes
#include <aygshell.h> // Pocket PC includes
#include "helloppc.h" // Program-specific stuff
//----------------------------------------------------------------------
// Global data
//
const TCHAR szAppName[] = TEXT ("HelloPPC");
HINSTANCE hInst; // Program instance handle
// Pocket PC globals
HWND hwndMenuBar = NULL; // Handle of menu bar control
BOOL fHibernated = FALSE; // Indicates hibernated state
SHACTIVATEINFO sai; // Used to adjust window for SIP
// Message dispatch table for MainWindowProc
const struct decodeUINT MainMessages[] = {
WM_CREATE, DoCreateMain,
WM_PAINT, DoPaintMain,
WM_COMMAND, DoCommandMain,
WM_SETTINGCHANGE, DoSettingChangeMain,
WM_ACTIVATE, DoActivateMain,
WM_HIBERNATE, DoHibernateMain,
WM_DESTROY, DoDestroyMain,
};
// Command Message dispatch for MainWindowProc
const struct decodeCMD MainCommandItems[] = {
IDM_EXIT, DoMainCommandExit,
};
//======================================================================
// Program entry point
//
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPWSTR lpCmdLine, int nCmdShow) {
MSG msg;
int rc = 0;
HWND hwndMain;
HACCEL hAccel;
// Initialize this instance.
hwndMain = InitInstance (hInstance, lpCmdLine, nCmdShow);
if (hwndMain == 0) return 0x10;
hAccel = LoadAccelerators(hInstance, MAKEINTRESOURCE (ID_ACCEL));
// Application message loop
while (GetMessage (&msg, NULL, 0, 0)) {
// Translate accelerator keys.
if (!TranslateAccelerator(hwndMain, hAccel, &msg)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
// Instance cleanup
return TermInstance (hInstance, msg.wParam);
}
//------------------------------------------------------------------
// InitInstance - Instance initialization
//
HWND InitInstance (HINSTANCE hInstance, LPWSTR lpCmdLine, int nCmdShow) {
WNDCLASS wc;
HWND hWnd;
// Save program instance handle in global variable.
hInst = hInstance;
// Allow only one instance of the application.
hWnd = FindWindow (szAppName, NULL);
if (hWnd) {
SetForegroundWindow ((HWND)(((DWORD)hWnd) | 0x01));
return 0;
}
// Register application main window class.
wc.style = CS_VREDRAW | CS_HREDRAW; // Window style
wc.lpfnWndProc = MainWndProc; // Callback function
wc.cbClsExtra = 0; // Extra class data
wc.cbWndExtra = 0; // Extra window data
wc.hInstance = hInstance; // Owner handle
wc.hIcon = NULL, // Application icon
wc.hCursor = LoadCursor (NULL, IDC_ARROW); // Default cursor
wc.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
wc.lpszMenuName = NULL; // Menu name
wc.lpszClassName = szAppName; // Window class name
if (RegisterClass (&wc) == 0) return 0;
// Create main window.
hWnd = CreateWindow (szAppName, // Window class
TEXT ("Hello"), // Window title
WS_VISIBLE, // Style flags
CW_USEDEFAULT, // x position
CW_USEDEFAULT, // y position
CW_USEDEFAULT, // Initial width
CW_USEDEFAULT, // Initial height
NULL, // Parent
NULL, // Menu, must be null
hInstance, // Application instance
NULL); // Pointer to create
// parameters
if (!IsWindow (hWnd)) return 0; // Fail if not created.
// Standard show and update calls
ShowWindow (hWnd, nCmdShow);
UpdateWindow (hWnd);
return hWnd;
}
//----------------------------------------------------------------------
// TermInstance - Program cleanup
//
int TermInstance (HINSTANCE hInstance, int nDefRC) {
return nDefRC;
}
//======================================================================
// Message handling procedures for main window
//
//----------------------------------------------------------------------
// MainWndProc - Callback function for application window
//
LRESULT CALLBACK MainWndProc (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
INT i;
//
// Search message list to see if we need to handle this
// message. If in list, call procedure.
//
for (i = 0; i < dim(MainMessages); i++) {
if (wMsg == MainMessages[i].Code)
return (*MainMessages[i].Fxn)(hWnd, wMsg, wParam, lParam);
}
return DefWindowProc (hWnd, wMsg, wParam, lParam);
}
//----------------------------------------------------------------------
// DoCreateMain - Process WM_CREATE message for window.
//
LRESULT DoCreateMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
SHMENUBARINFO mbi;
SIPINFO si;
int cx, cy;
// Initialize the shell to activate info structure.
memset (&sai, 0, sizeof (sai));
sai.cbSize = sizeof (sai);
// Create a menu bar.
memset(&mbi, 0, sizeof(SHMENUBARINFO)); // Zero structure
mbi.cbSize = sizeof(SHMENUBARINFO); // Size field
mbi.hwndParent = hWnd; // Parent window
mbi.dwFlags = SHCMBF_EMPTYBAR; // Flags like hide SIP btn
mbi.nToolBarId = 0; // ID of toolbar resource
mbi.hInstRes = 0; // Inst handle of app
mbi.nBmpId = 0; // ID of bitmap resource
mbi.cBmpImages = 0; // Num of images in bitmap
mbi.hwndMB = 0; // Handle of bar returned
// Create menu bar and check for errors.
if (!SHCreateMenuBar(&mbi)) {
MessageBox (hWnd, TEXT ("Couldn\'t create menu bar"),
szAppName, MB_OK);
DestroyWindow (hWnd);
}
hwndMenuBar = mbi.hwndMB; // Save the menu bar handle.
// Query the sip state and size our window appropriately.
memset (&si, 0, sizeof (si));
si.cbSize = sizeof (si);
SHSipInfo(SPI_GETSIPINFO, 0, (PVOID)&si, FALSE);
cx = si.rcVisibleDesktop.right - si.rcVisibleDesktop.left;
cy = si.rcVisibleDesktop.bottom - si.rcVisibleDesktop.top;
// If the sip is not shown, or showing but not docked, the
// desktop rect doesn't include the height of the menu bar.
if (!(si.fdwFlags & SIPF_ON) ||
((si.fdwFlags & SIPF_ON) && !(si.fdwFlags & SIPF_DOCKED))) {
RECT rectMB;
GetWindowRect (hwndMenuBar, &rectMB);
cy -= (rectMB.bottom - rectMB.top);
}
SetWindowPos (hWnd, NULL, 0, 0, cx, cy, SWP_NOMOVE | SWP_NOZORDER);
return 0;
}
//----------------------------------------------------------------------
// DoCommandMain - Process WM_COMMAND message for window.
//
LRESULT DoCommandMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
WORD idItem, wNotifyCode;
HWND hwndCtl;
INT i;
// Parse the parameters.
idItem = (WORD) LOWORD (wParam);
wNotifyCode = (WORD) HIWORD (wParam);
hwndCtl = (HWND) lParam;
// Call routine to handle control message.
for (i = 0; i < dim(MainCommandItems); i++) {
if (idItem == MainCommandItems[i].Code)
return (*MainCommandItems[i].Fxn)(hWnd, idItem, hwndCtl,
wNotifyCode);
}
return 0;
}
//----------------------------------------------------------------------
// DoPaintMain - Process WM_PAINT message for window.
//
LRESULT DoPaintMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
PAINTSTRUCT ps;
HPEN hPen, hOld;
RECT rect;
HDC hdc;
hdc = BeginPaint (hWnd, &ps);
GetClientRect (hWnd, &rect);
// Draw a red rectangle around the window.
hPen = CreatePen (PS_SOLID, 1, RGB (255, 0, 0));
hOld = (HPEN)SelectObject (hdc, hPen);
Rectangle (hdc, rect.left, rect.top, rect.right, rect.bottom);
SelectObject (hdc, hOld);
DeleteObject (hPen);
// Draw the standard hello text centered in the window.
DrawText (hdc, TEXT ("Hello Pocket PC! "), -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint (hWnd, &ps);
return 0;
}
//----------------------------------------------------------------------
// DoSettingChangeMain - Process WM_SETTINGCHANGE message for window.
//
LRESULT DoSettingChangeMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
// Notify shell of our WM_SETTINGCHANGE message.
SHHandleWMSettingChange(hWnd, wParam, lParam, &sai);
return 0;
}
//----------------------------------------------------------------------
// DoActivateMain - Process WM_ACTIVATE message for window.
//
LRESULT DoActivateMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
// If activating, restore any hibernated stuff.
if ((LOWORD (wParam) != WA_INACTIVE) && fHibernated) {
fHibernated = FALSE;
}
// Notify shell of our activate message.
SHHandleWMActivate(hWnd, wParam, lParam, &sai, 0);
return 0;
}
//----------------------------------------------------------------------
// DoHibernateMain - Process WM_HIBERNATE message for window.
//
LRESULT DoHibernateMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
// If not the active window, reduce our memory footprint.
if (GetActiveWindow() != hWnd) {
fHibernated = TRUE;
}
return 0;
}
//----------------------------------------------------------------------
// DoDestroyMain - Process WM_DESTROY message for window.
//
LRESULT DoDestroyMain (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
PostQuitMessage (0);
return 0;
}
//======================================================================
// Command handler routines
//----------------------------------------------------------------------
// DoMainCommandExit - Process Program Exit command.
//
LPARAM DoMainCommandExit (HWND hWnd, WORD idItem, HWND hwndCtl,
WORD wNotifyCode) {
SendMessage (hWnd, WM_CLOSE, 0, 0);
return 0;
}
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