Win32 視窗程式設計基礎教學 ( Win32 Programming Basic Concepts )

若您覺得文章寫得不錯，請點選文章上的廣告，來支持小編，謝謝。

投影片：

Win32 視窗程式設計基礎 from PingLun Liao

範例程式由Code::Blocks所提供的範本修改而來的：

	#if defined(UNICODE) && !defined(_UNICODE)
	#define _UNICODE
	#elif defined(_UNICODE) && !defined(UNICODE)
	#define UNICODE
	#endif
	#include <tchar.h>
	#include <windows.h>
	/* Declare Windows procedure */
	LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
	/* Make the class name into a global variable */
	TCHAR szClassName[ ] = _T("HolanWindowsApp");
	int WINAPI WinMain (HINSTANCE hThisInstance,
	HINSTANCE hPrevInstance,
	LPSTR lpszArgument,
	int nCmdShow)
	{
	HWND hwnd; /* This is the handle for our window */
	MSG messages; /* Here messages to the application are saved */
	/*
	* Step 1: Registering the Window Class
	*/
	WNDCLASSEX wincl; /* Data structure for the windowclass */
	/* The Window structure */
	wincl.hInstance = hThisInstance;
	wincl.lpszClassName = szClassName;
	wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
	wincl.style = CS_DBLCLKS; /* Catch double-clicks */
	wincl.cbSize = sizeof (WNDCLASSEX);
	/* Use default icon and mouse-pointer */
	wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
	wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
	wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
	wincl.lpszMenuName = NULL; /* No menu */
	wincl.cbClsExtra = 0; /* No extra bytes after the window class */
	wincl.cbWndExtra = 0; /* structure or the window instance */
	/* Use Windows's default colour as the HIGHLIGHT of the window */
	wincl.hbrBackground = (HBRUSH)(COLOR_HIGHLIGHT+1);
	/* Register the window class, and if it fails quit the program */
	if (!RegisterClassEx (&wincl))
	return 0;
	/*
	* Step 2: Creating the Window
	*/
	/* The class is registered, let's create the program*/
	hwnd = CreateWindowEx (
	0, /* Extended possibilites for variation */
	szClassName, /* Classname */
	_T("Holan Windows App"), /* Title Text */
	WS_OVERLAPPEDWINDOW, /* default window */
	CW_USEDEFAULT, /* Windows decides the position */
	CW_USEDEFAULT, /* where the window ends up on the screen */
	544, /* The programs width */
	375, /* and height in pixels */
	HWND_DESKTOP, /* The window is a child-window to desktop */
	NULL, /* No menu */
	hThisInstance, /* Program Instance handler */
	NULL /* No Window Creation data */
	);
	/* Make the window visible on the screen */
	ShowWindow (hwnd, nCmdShow);
	/*
	* Step 3: The Message Loop
	*/
	/* Run the message loop. It will run until GetMessage() returns 0 */
	while (GetMessage (&messages, NULL, 0, 0))
	{
	/* Translate virtual-key messages into character messages */
	TranslateMessage(&messages);
	/* Send message to WindowProcedure */
	DispatchMessage(&messages);
	}
	/* The program return-value is 0 - The value that PostQuitMessage() gave */
	return messages.wParam;
	}
	/*
	* Step 4: the Window Procedure
	*/
	/* This function is called by the Windows function DispatchMessage() */
	LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
	{
	switch (message) /* handle the messages */
	{
	case WM_DESTROY:
	PostQuitMessage (0); /* send a WM_QUIT to the message queue */
	break;
	default: /* for messages that we don't deal with */
	return DefWindowProc (hwnd, message, wParam, lParam);
	}
	return 0;
	}

view raw HolanWin.cpp hosted with ❤ by GitHub