在 eVC 中创建最简单的 Win32 窗体
最近开始学习 eVC 开发,阅读《Programming Microsoft Windows CE .NET, Third Edition》。Win32 开发确实比 .NET 开发要麻烦很多,创建一个最简单的窗体都要编写很多代码。不过这样一来,开发人员可以控制的东西就多了,更能发挥编码水平。
创建窗体代码如下:
Hello3.cpp
//======================================================================
// Hello3 - A simple application for Windows CE
//
// Written for the book Programming Windows CE
// Copyright (C) 2003 Douglas Boling
//======================================================================
#include <windows.h> // For all that Windows stuff
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);
//======================================================================
// Program entry point
//
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPWSTR lpCmdLine, int nCmdShow) {
WNDCLASS wc;
HWND hWnd;
MSG msg;
// Register application main window class.
wc.style = 0; // 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 = TEXT("MyClass"); // Window class name
if (RegisterClass (&wc) == 0) return -1;
// Create main window.
hWnd = CreateWindowEx(WS_EX_NODRAG, // Ex style flags
TEXT("MyClass"), // Window class
TEXT("Hello"), // Window title
// Style flags
WS_VISIBLE | WS_CAPTION | WS_SYSMENU,
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 -2; // Fail code if not created.
// Standard show and update calls
ShowWindow (hWnd, nCmdShow);
UpdateWindow (hWnd);
// Application message loop
while (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
// Instance cleanup
return msg.wParam;
}
//======================================================================
// MainWndProc - Callback function for application window
//
LRESULT CALLBACK MainWndProc (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
PAINTSTRUCT ps;
RECT rect;
HDC hdc;
switch (wMsg) {
case WM_PAINT:
// Get the size of the client rectangle
GetClientRect (hWnd, &rect);
hdc = BeginPaint (hWnd, &ps);
DrawText (hdc, TEXT ("Hello Windows CE!"), -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint (hWnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage (0);
break;
}
return DefWindowProc (hWnd, wMsg, wParam, lParam);
}
//======================================================================
创建窗体的活动图:

创建窗体代码如下:
Hello3.cpp
//======================================================================
// Hello3 - A simple application for Windows CE
//
// Written for the book Programming Windows CE
// Copyright (C) 2003 Douglas Boling
//======================================================================
#include <windows.h> // For all that Windows stuff
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);
//======================================================================
// Program entry point
//
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPWSTR lpCmdLine, int nCmdShow) {
WNDCLASS wc;
HWND hWnd;
MSG msg;
// Register application main window class.
wc.style = 0; // 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 = TEXT("MyClass"); // Window class name
if (RegisterClass (&wc) == 0) return -1;
// Create main window.
hWnd = CreateWindowEx(WS_EX_NODRAG, // Ex style flags
TEXT("MyClass"), // Window class
TEXT("Hello"), // Window title
// Style flags
WS_VISIBLE | WS_CAPTION | WS_SYSMENU,
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 -2; // Fail code if not created.
// Standard show and update calls
ShowWindow (hWnd, nCmdShow);
UpdateWindow (hWnd);
// Application message loop
while (GetMessage (&msg, NULL, 0, 0)) {
TranslateMessage (&msg);
DispatchMessage (&msg);
}
// Instance cleanup
return msg.wParam;
}
//======================================================================
// MainWndProc - Callback function for application window
//
LRESULT CALLBACK MainWndProc (HWND hWnd, UINT wMsg, WPARAM wParam,
LPARAM lParam) {
PAINTSTRUCT ps;
RECT rect;
HDC hdc;
switch (wMsg) {
case WM_PAINT:
// Get the size of the client rectangle
GetClientRect (hWnd, &rect);
hdc = BeginPaint (hWnd, &ps);
DrawText (hdc, TEXT ("Hello Windows CE!"), -1, &rect,
DT_CENTER | DT_VCENTER | DT_SINGLELINE);
EndPaint (hWnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage (0);
break;
}
return DefWindowProc (hWnd, wMsg, wParam, lParam);
}
//======================================================================
创建窗体的活动图:
运行效果(并没有想象中那么美观):
转载于:https://www.cnblogs.com/bobli/archive/2007/02/26/creating_win32_window.html