win32 api 创建窗口的一个简单例子

最新推荐文章于 2024-09-12 22:53:16 发布

原创最新推荐文章于 2024-09-12 22:53:16 发布 · 8.1k 阅读

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文章标签：

#api #button #null #command #class #xp

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这篇博客通过一个简单的例子介绍了如何利用Win32 API在Windows XP操作系统下创建窗口，并添加按钮控件。文章涵盖了窗口类的注册、窗口的创建以及消息处理函数的实现，包括按钮的点击事件。

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/*使用ascci编码, vc6.0调试, xp os*/

#include "stdafx.h"
#include "resource.h"

#define BUFSIZ 126

TCHAR szWindowClass[BUFSIZ];
HINSTANCE hInst = NULL;

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

/*注册窗口类*/
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;

wcex.cbSize = sizeof(WNDCLASSEX);

wcex.style   = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra  = 0;
wcex.cbWndExtra  = 0;
wcex.hInstance  = hInstance;
wcex.hIcon   = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON2));
wcex.hCursor  = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 18);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm  = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_ICON1));

return RegisterClassEx(&wcex);
}

/*创建窗口*/
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;

hInst = hInstance;

    hWnd = CreateWindowEx(WS_EX_CLIENTEDGE, szWindowClass, "aa",
  WS_OVERLAPPED|WS_MINIMIZE|WS_SYSMENU|WS_CAPTION|WS_MINIMIZEBOX,
  50,//CW_USEDEFAULT,
  50,//0,
  385,//CW_USEDEFAULT,
  292,//0,
  NULL, NULL, hInstance, NULL);

if (!hWnd)
{
  return FALSE;
}

ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);

return TRUE;
}

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
// set window class name
strncpy(szWindowClass, "abc", BUFSIZ);
// register window class
MyRegisterClass(hInstance);
// create window and show it
InitInstance(hInstance, nCmdShow);

// enter massage loop
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
  //if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
  {
   TranslateMessage(&msg);
   DispatchMessage(&msg);
  }
}

return 0;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
int nCtrlId = LOWORD(wParam);

switch (msg)
{
case WM_CREATE:
/*演示创建窗口按钮*/

CreateWindow("button", "选择一", WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON,
20, 30, 70, 24, hWnd, (HMENU)1010, ((LPCREATESTRUCT)lParam)->hInstance, NULL );

CreateWindow("button", "选择二", WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON,
100, 30, 70, 24, hWnd, (HMENU)1020, ((LPCREATESTRUCT)lParam)->hInstance, NULL );

CreateWindow("button", "选择三", WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON,
180, 30, 70, 24, hWnd, (HMENU)1030, ((LPCREATESTRUCT)lParam)->hInstance, NULL );

CreateWindow("button", "请选择", WS_CHILD | WS_VISIBLE | BS_GROUPBOX,
10, 10, 260, 60, hWnd, (HMENU)1040, ((LPCREATESTRUCT)lParam)->hInstance, NULL );

CreateWindow("button", "点击我..", WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON,
280, 30, 70, 24, hWnd, (HMENU)1050, ((LPCREATESTRUCT)lParam)->hInstance, NULL );

break;

case WM_COMMAND:
  switch (nCtrlId)
  {
  case 1010:
   MessageBox(hWnd, "radio one", "aa", MB_OK);
   break;

  case 1050:
   MessageBox(hWnd, "clicked me", "note", MB_OK);
   break;
  }

break;

case WM_CLOSE:
PostQuitMessage(0);
break;

default:
return DefWindowProc(hWnd, msg, wParam, lParam);
}

return 0L;
}