windows编程初步

#include <windows.h>

const char g_szClassName[] = "myWindowClass";

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)

{

switch(msg)

{

case WM_LBUTTONDOWN:

{

printf("you have clicked left_button once!\n");

//answer：

MessageBox(hwnd, TEXT("你点击了左键一下！"), TEXT("通知"), MB_OK | MB_ICONINFORMATION);

char szFileName[MAX_PATH];

//GetModuleHandle()的说明指出传给它一个NULL会返回一个创建发出调用进程的文件句柄

HINSTANCE hInstance = GetModuleHandle(NULL);

//消息处理函数

GetModuleFileName(hInstance, szFileName, MAX_PATH);

MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);

}

break;

case WM_RBUTTONDOWN:

{

printf("you have clicked right_button once!\n");

//answer：

MessageBox(hwnd, TEXT("你点击了右键一下！"), TEXT("通知"), MB_OK | MB_ICONINFORMATION);

char szFileName[MAX_PATH];

//GetModuleHandle()的说明指出传给它一个NULL会返回一个创建发出调用进程的文件句柄

HINSTANCE hInstance = GetModuleHandle(NULL);

//消息处理函数

GetModuleFileName(hInstance, szFileName, MAX_PATH);

MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);

}

break;

case WM_MBUTTONDOWN:

{

printf("you have clicked middle_button once!\n");

//answer：

MessageBox(hwnd, TEXT("你点击了中键一下！"), TEXT("通知"), MB_OK | MB_ICONINFORMATION);

char szFileName[MAX_PATH];

//GetModuleHandle()的说明指出传给它一个NULL会返回一个创建发出调用进程的文件句柄

HINSTANCE hInstance = GetModuleHandle(NULL);

//消息处理函数

GetModuleFileName(hInstance, szFileName, MAX_PATH);

MessageBox(hwnd, szFileName, "This program is:", MB_OK | MB_ICONINFORMATION);

}

break;

case WM_CLOSE:

{

DestroyWindow(hwnd);

printf("windows closed!\n");

}

break;

case WM_DESTROY:

{

PostQuitMessage(0);

printf("windows destroied!\n");

}

break;

default:

return DefWindowProc(hwnd, msg, wParam, lParam);

}

return 0;

}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,

LPSTR lpCmdLine, int nCmdShow)

{

WNDCLASSEX wc;

HWND hwnd;

MSG Msg;

wc.cbSize        = sizeof(WNDCLASSEX);

wc.style         = 0;

wc.lpfnWndProc   = WndProc;

wc.cbClsExtra    = 0;

wc.cbWndExtra    = 0;

wc.hInstance     = hInstance;

wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);

wc.hCursor       = LoadCursor(NULL, IDC_ARROW);

wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);

wc.lpszMenuName  = NULL;

wc.lpszClassName = g_szClassName;

wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

if(!RegisterClassEx(&wc))

{

MessageBox(NULL, "Window Registration Failed!", "Error!",

MB_ICONEXCLAMATION | MB_OK);

return 0;

}

hwnd = CreateWindowEx(

WS_EX_CLIENTEDGE,

g_szClassName,

"The title of my window",

WS_OVERLAPPEDWINDOW,

CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,

NULL, NULL, hInstance, NULL);

if(hwnd == NULL)

{

MessageBox(NULL, "Window Creation Failed!", "Error!",

MB_ICONEXCLAMATION | MB_OK);

return 0;

}

ShowWindow(hwnd, nCmdShow);

UpdateWindow(hwnd);

while(GetMessage(&Msg, NULL, 0, 0) > 0)

{

TranslateMessage(&Msg);

DispatchMessage(&Msg);

}

return Msg.wParam;

}