//調(diào)用api函數(shù)創(chuàng)建窗口

//示例:

#include

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);//窗口過程函數(shù)

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)

{

static TCHAR szAppName[] = TEXT(\"MyWindows\");//定義窗口類名

HWND hwnd;//窗口句柄

MSG msg; //

WNDCLASS wndclass; //窗口類

wndclass.style = CS_HREDRAW | CS_VREDRAW;//指定窗口類型，各種“類風(fēng)格”（詳見下方↓）可以使用按位或操作符組合起來

wndclass.lpfnWndProc = WndProc;//指定窗口過程（必須是回調(diào)函數(shù)）

wndclass.cbClsExtra = 0;//預(yù)留的額外空間，一般為 0

wndclass.cbWndExtra = 0;//預(yù)留的額外空間，一般為 0

wndclass.hInstance = hInstance;//應(yīng)用程序的實例句柄

wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);//為所有基于該窗口類的窗口設(shè)定一個圖標(biāo)

wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);//為所有基于該窗口類的窗口設(shè)定一個鼠標(biāo)指針

wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);//指定窗口背景色

wndclass.lpszMenuName = NULL;//指定窗口菜單

wndclass.lpszClassName = szAppName;//指定窗口類名

if (!RegisterClass(&wndclass))//注冊窗口

{

MessageBox(NULL, TEXT(\"這個程序需要在 Windows NT 才能執(zhí)行！\"), szAppName, MB_ICONERROR);

return 0;

}

hwnd = CreateWindow(szAppName, //創(chuàng)建窗口

TEXT(\"windows\"),

WS_OVERLAPPEDWINDOW,

CW_USEDEFAULT,

CW_USEDEFAULT,

CW_USEDEFAULT,

CW_USEDEFAULT,

NULL,

NULL,

hInstance,

NULL);

ShowWindow(hwnd, iCmdShow); //顯示窗口

UpdateWindow(hwnd); //更新窗口,重繪

while (GetMessage(&msg, NULL, 0, 0)) //獲得消息

{

TranslateMessage(&msg);

DispatchMessage(&msg);

}

return msg.wParam;

}

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)//回調(diào)函數(shù)

{

HDC hdc;

PAINTSTRUCT ps;

RECT rect;

switch (message)

{

case WM_PAINT:

hdc = BeginPaint(hwnd, &ps);

GetClientRect(hwnd, &rect);

DrawText(hdc, TEXT(\"第一個C語言窗口程序！\"), -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);

}