win程序设计笔记2
:( 为了不被鄙视而学习:( 为了将来工作而学习
书中的例程HELLOWIN.C
/*------------------------------------------------------------------------
HELLOWIN.C -- Displays "Hello, Windows 98!" in client area
(c) Charles Petzold, 1998
-----------------------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("HelloWin") ;
HWND hwnd ;
MSG msg ;
WNDCLAS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc= WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuNam = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow( szAppName, // window class name
TEXT ("The Hello Program"), // window caption
WS_OVERLAPPEDWINDOW, // window style
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
CW_USEDEFAULT, // initial x size
CW_USEDEFAULT, // initial y size
NULL, // parent window handle
NULL, // window menu handle
hInstance, // program instance handle
NULL) ; // creation parameters
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
HDC hdc ;
PAINTSTRUCT ps ;
RECT rect ;
switch (message)
{
case WM_CREATE:
PlaySound (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
DrawText (hdc, TEXT ("Hello, Windows 98!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}其中三处地方要注意
1,WNDCLAS wndclass ;
少了个S
2,wndclass.lpszMenuNam = NULL ;
少了个e
3,PlaySound (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
不删除此句则应该添加 WINMM.LIB
字首类别
CS 视窗类别样式
CW 建立视窗
DT 绘制文字
IDI 图示ID
IDC 游标ID
MB 讯息方块
SND 声音
WM 视窗讯息
WS 视窗样式
结构含义
MSG 讯息结构
WNDCLASS 视窗类别结构
PAINTSTRUCT 绘图结构
RECT 矩形结构
识别字含义
HINSTANCE 执行实体（程式自身）代号
HWND 视窗代号
HDC 装置内容代号
字首资料型态
c char或WCHAR或TCHAR
by BYTE （无正负号字元）
n short
i int
x, y int分别用作x座标和y座标
cx, cy int分别用作x长度和y长度；C代表「计数器」
b或f BOOL (int)；f代表「旗标」
w WORD （无正负号短整数）
l LONG （长整数）
dw DWORD （无正负号长整数）
fn function（函式）
s string（字串）
sz 以位元组值0结尾的字串
h 代号
p 指标
WNDCLASSA结构
ASCII版:
typedef struct tagWNDCLASSA
{
UINT style ;
WNDPROC lpfnWndProc ;
int cbClsExtra ;
int cbWndExtra ;
HINSTANCE hInstance ;
HICON hIcon ;
HCURSOR hCursor ;
HBRUSH hbrBackground ;
LPCSTR lpszMenuName ;
LPCSTR lpszClassName ;
}
WNDCLASSA, * PWNDCLASSA, NEAR * NPWNDCLASSA, FAR * LPWNDCLASSA ;
Unicode版:
typedef struct tagWNDCLASSW
{
UINT style ;
WNDPROC lpfnWndProc ;
int cbClsExtra ;
int cbWndExtra ;
HINSTANCE hInstance ;
HICON hIcon ;
HCURSOR hCursor ;
HBRUSH hbrBackground ;
LPCWSTR lpszMenuName ;
LPCWSTR lpszClassName ;
}
WNDCLASSW, * PWNDCLASSW, NEAR * NPWNDCLASSW, FAR * LPWNDCLASSW ;
创建一个窗口hwnd = CreateWindow (szAppName, // window class name
TEXT ( "The Hello Program"), // window caption
WS_OVERLAPPEDWINDOW, // window style
CW_USEDEFAULT, // initial x position
CW_USEDEFAULT, // initial y position
CW_USEDEFAULT, // initial x size
CW_USEDEFAULT, // initial y size
NULL, // parent window handle
NULL, // window menu handle
hInstance, // program instance handle
NULL) ; // creation parameters显示窗口
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
消息循环while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}MSG结构:
typedef struct tagMSG
{
HWND hwnd ;
UINT message ;
WPARAM wParam ;
LPARAM lParam ;
DWORD time ;
POINT pt ;
}
MSG, * PMSG ;
POINT结构:
typedef struct tagPOINT
{
LONGx ;
LONGy ;
}
POINT, * PPOINT;
[ 本帖最后由 zapline 于 2009-2-7 15:06 编辑 ] 真勤快；以后工作不用愁啦；呵呵；鼓励！ 确实勤快，不过笔记不要记得太泛了！
笔记应该记一些疑难点与容易出错的地方，不要泛泛而谈的好，呵呵;P 什么东西~~
看不懂 看了之后。那是相当的晕。。。小Z太强了！！
页:
[1]